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Publisher: Springer-Verlag   (Total: 2329 journals)

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Showing 1 - 200 of 2329 Journals sorted alphabetically
3D Research     Hybrid Journal   (Followers: 19, SJR: 0.214, h-index: 10)
4OR: A Quarterly J. of Operations Research     Hybrid Journal   (Followers: 9, SJR: 1.073, h-index: 25)
AAPS J.     Hybrid Journal   (Followers: 18, SJR: 1.192, h-index: 74)
AAPS PharmSciTech     Hybrid Journal   (Followers: 5, SJR: 0.718, h-index: 54)
Abdominal Imaging     Hybrid Journal   (Followers: 14, SJR: 0.723, h-index: 60)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 2, SJR: 0.447, h-index: 12)
Academic Psychiatry     Full-text available via subscription   (Followers: 22, SJR: 0.492, h-index: 32)
Academic Questions     Hybrid Journal   (Followers: 7, SJR: 0.135, h-index: 6)
Accreditation and Quality Assurance: J. for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 26, SJR: 0.378, h-index: 30)
Acoustical Physics     Hybrid Journal   (Followers: 10, SJR: 0.355, h-index: 20)
Acoustics Australia     Hybrid Journal  
Acta Analytica     Hybrid Journal   (Followers: 7, SJR: 0.387, h-index: 6)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1, SJR: 0.624, h-index: 34)
Acta Biotheoretica     Hybrid Journal   (Followers: 5, SJR: 0.419, h-index: 25)
Acta Diabetologica     Hybrid Journal   (Followers: 14, SJR: 1.318, h-index: 46)
Acta Endoscopica     Hybrid Journal   (Followers: 1, SJR: 0.113, h-index: 8)
acta ethologica     Hybrid Journal   (Followers: 4, SJR: 0.465, h-index: 23)
Acta Geochimica     Hybrid Journal   (Followers: 3)
Acta Geodaetica et Geophysica     Hybrid Journal   (Followers: 1, SJR: 0.294, h-index: 13)
Acta Geotechnica     Hybrid Journal   (Followers: 6, SJR: 1.818, h-index: 22)
Acta Informatica     Hybrid Journal   (Followers: 5, SJR: 0.524, h-index: 32)
Acta Mathematica     Hybrid Journal   (Followers: 10, SJR: 8.021, h-index: 47)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2, SJR: 0.53, h-index: 29)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 5, SJR: 0.406, h-index: 30)
Acta Mathematica Vietnamica     Hybrid Journal   (SJR: 0.451, h-index: 5)
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal   (SJR: 0.22, h-index: 20)
Acta Mechanica     Hybrid Journal   (Followers: 18, SJR: 0.898, h-index: 52)
Acta Mechanica Sinica     Hybrid Journal   (Followers: 4, SJR: 0.426, h-index: 29)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 5, SJR: 0.525, h-index: 18)
Acta Meteorologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.524, h-index: 14)
Acta Neurochirurgica     Hybrid Journal   (Followers: 6, SJR: 0.833, h-index: 73)
Acta Neurologica Belgica     Hybrid Journal   (SJR: 0.348, h-index: 27)
Acta Neuropathologica     Hybrid Journal   (Followers: 3, SJR: 6.61, h-index: 117)
Acta Oceanologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.295, h-index: 17)
Acta Parasitologica     Hybrid Journal   (Followers: 9, SJR: 0.581, h-index: 28)
Acta Physiologiae Plantarum     Hybrid Journal   (Followers: 2, SJR: 0.551, h-index: 39)
Acta Politica     Hybrid Journal   (Followers: 13, SJR: 0.658, h-index: 20)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 5, SJR: 0.103, h-index: 4)
ADHD Attention Deficit and Hyperactivity Disorders     Hybrid Journal   (Followers: 20, SJR: 0.871, h-index: 15)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 7)
Administration and Policy in Mental Health and Mental Health Services Research     Partially Free   (Followers: 14, SJR: 0.795, h-index: 40)
Adsorption     Hybrid Journal   (Followers: 4, SJR: 0.774, h-index: 52)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 3, SJR: 0.319, h-index: 15)
Advances in Atmospheric Sciences     Hybrid Journal   (Followers: 34, SJR: 0.959, h-index: 44)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 15, SJR: 1.255, h-index: 44)
Advances in Contraception     Hybrid Journal   (Followers: 2)
Advances in Data Analysis and Classification     Hybrid Journal   (Followers: 53, SJR: 1.113, h-index: 14)
Advances in Gerontology     Partially Free   (Followers: 8, SJR: 0.141, h-index: 3)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 23, SJR: 1.397, h-index: 42)
Advances in Manufacturing     Hybrid Journal   (Followers: 3, SJR: 0.2, h-index: 4)
Advances in Polymer Science     Hybrid Journal   (Followers: 40, SJR: 0.637, h-index: 89)
Advances in Therapy     Hybrid Journal   (Followers: 5, SJR: 0.79, h-index: 44)
Aegean Review of the Law of the Sea and Maritime Law     Hybrid Journal   (Followers: 7)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2, SJR: 0.882, h-index: 23)
Aerobiologia     Hybrid Journal   (Followers: 1, SJR: 0.511, h-index: 36)
Aesthetic Plastic Surgery     Hybrid Journal   (Followers: 8, SJR: 0.821, h-index: 49)
African Archaeological Review     Hybrid Journal   (Followers: 14, SJR: 0.612, h-index: 24)
Afrika Matematika     Hybrid Journal   (Followers: 1, SJR: 0.248, h-index: 6)
AGE     Hybrid Journal   (Followers: 7, SJR: 1.358, h-index: 33)
Ageing Intl.     Hybrid Journal   (Followers: 7, SJR: 0.337, h-index: 10)
Aggiornamenti CIO     Hybrid Journal   (Followers: 1)
Aging Clinical and Experimental Research     Hybrid Journal   (Followers: 3, SJR: 0.529, h-index: 55)
Agricultural Research     Hybrid Journal   (Followers: 3)
Agriculture and Human Values     Hybrid Journal   (Followers: 12, SJR: 1.197, h-index: 49)
Agroforestry Systems     Hybrid Journal   (Followers: 20, SJR: 0.64, h-index: 56)
Agronomy for Sustainable Development     Hybrid Journal   (Followers: 10, SJR: 1.732, h-index: 59)
AI & Society     Hybrid Journal   (Followers: 7, SJR: 0.171, h-index: 19)
AIDS and Behavior     Hybrid Journal   (Followers: 13, SJR: 2.006, h-index: 71)
Air Quality, Atmosphere & Health     Hybrid Journal   (Followers: 3, SJR: 0.706, h-index: 19)
Akupunktur & Aurikulomedizin     Full-text available via subscription   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 2, SJR: 0.566, h-index: 18)
Algebra Universalis     Hybrid Journal   (Followers: 2, SJR: 0.388, h-index: 22)
Algebras and Representation Theory     Hybrid Journal   (Followers: 1, SJR: 0.868, h-index: 20)
Algorithmica     Hybrid Journal   (Followers: 7, SJR: 0.898, h-index: 56)
Allergo J.     Full-text available via subscription   (Followers: 1, SJR: 0.183, h-index: 20)
Allergo J. Intl.     Hybrid Journal   (Followers: 2)
Alpine Botany     Hybrid Journal   (Followers: 4, SJR: 0.729, h-index: 20)
ALTEX : Alternatives to Animal Experimentation     Open Access   (Followers: 3, SJR: 1.392, h-index: 32)
AMBIO     Hybrid Journal   (Followers: 14, SJR: 1.094, h-index: 87)
American J. of Cardiovascular Drugs     Hybrid Journal   (Followers: 10, SJR: 0.864, h-index: 39)
American J. of Community Psychology     Hybrid Journal   (Followers: 24, SJR: 1.237, h-index: 83)
American J. of Criminal Justice     Hybrid Journal   (Followers: 7, SJR: 0.634, h-index: 13)
American J. of Cultural Sociology     Hybrid Journal   (Followers: 11, SJR: 0.283, h-index: 3)
American J. of Dance Therapy     Hybrid Journal   (Followers: 4, SJR: 0.175, h-index: 13)
American J. of Potato Research     Hybrid Journal   (Followers: 2, SJR: 0.558, h-index: 35)
American J. of Psychoanalysis     Hybrid Journal   (Followers: 21, SJR: 0.293, h-index: 13)
American Sociologist     Hybrid Journal   (Followers: 11, SJR: 0.18, h-index: 13)
Amino Acids     Hybrid Journal   (Followers: 7, SJR: 1.362, h-index: 83)
AMS Review     Partially Free   (Followers: 4)
Analog Integrated Circuits and Signal Processing     Hybrid Journal   (Followers: 5, SJR: 0.21, h-index: 37)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 4, SJR: 0.665, h-index: 7)
Analysis in Theory and Applications     Hybrid Journal  
Analysis of Verbal Behavior     Hybrid Journal   (Followers: 4)
Analytical and Bioanalytical Chemistry     Hybrid Journal   (Followers: 28, SJR: 1.096, h-index: 123)
Anatomical Science Intl.     Hybrid Journal   (Followers: 2, SJR: 0.301, h-index: 26)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Angiogenesis     Hybrid Journal   (Followers: 3, SJR: 2.212, h-index: 69)
Animal Cognition     Hybrid Journal   (Followers: 15, SJR: 1.122, h-index: 55)
Annales françaises de médecine d'urgence     Hybrid Journal   (Followers: 1, SJR: 0.156, h-index: 4)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3, SJR: 1.377, h-index: 32)
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4)
Annali dell'Universita di Ferrara     Hybrid Journal   (SJR: 0.504, h-index: 14)
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1, SJR: 1.167, h-index: 26)
Annals of Behavioral Medicine     Hybrid Journal   (Followers: 12, SJR: 2.112, h-index: 98)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18, SJR: 1.182, h-index: 94)
Annals of Combinatorics     Hybrid Journal   (Followers: 3, SJR: 0.849, h-index: 15)
Annals of Data Science     Hybrid Journal   (Followers: 8)
Annals of Dyslexia     Hybrid Journal   (Followers: 9, SJR: 0.857, h-index: 40)
Annals of Finance     Hybrid Journal   (Followers: 28, SJR: 0.686, h-index: 14)
Annals of Forest Science     Hybrid Journal   (Followers: 4, SJR: 0.929, h-index: 57)
Annals of Global Analysis and Geometry     Hybrid Journal   (Followers: 1, SJR: 1.136, h-index: 23)
Annals of Hematology     Hybrid Journal   (Followers: 13, SJR: 1.117, h-index: 62)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 6, SJR: 0.593, h-index: 42)
Annals of Microbiology     Hybrid Journal   (Followers: 9, SJR: 0.402, h-index: 26)
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 5, SJR: 0.68, h-index: 45)
Annals of Operations Research     Hybrid Journal   (Followers: 8, SJR: 1.186, h-index: 78)
Annals of Regional Science     Hybrid Journal   (Followers: 7, SJR: 0.405, h-index: 42)
Annals of Software Engineering     Hybrid Journal   (Followers: 12)
Annals of Solid and Structural Mechanics     Hybrid Journal   (Followers: 10, SJR: 0.553, h-index: 8)
Annals of Surgical Oncology     Hybrid Journal   (Followers: 11, SJR: 1.902, h-index: 127)
Annals of Telecommunications     Hybrid Journal   (Followers: 7, SJR: 0.315, h-index: 25)
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1, SJR: 0.931, h-index: 31)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5, SJR: 0.992, h-index: 87)
Apidologie     Hybrid Journal   (Followers: 4, SJR: 1.14, h-index: 57)
APOPTOSIS     Hybrid Journal   (Followers: 8, SJR: 1.554, h-index: 87)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2, SJR: 0.354, h-index: 27)
Applications of Mathematics     Hybrid Journal   (Followers: 1, SJR: 0.274, h-index: 20)
Applied Biochemistry and Biotechnology     Hybrid Journal   (Followers: 44, SJR: 0.575, h-index: 80)
Applied Biochemistry and Microbiology     Hybrid Journal   (Followers: 17, SJR: 0.267, h-index: 26)
Applied Categorical Structures     Hybrid Journal   (Followers: 2, SJR: 0.361, h-index: 21)
Applied Composite Materials     Hybrid Journal   (Followers: 46, SJR: 0.705, h-index: 35)
Applied Entomology and Zoology     Partially Free   (Followers: 2, SJR: 0.554, h-index: 34)
Applied Geomatics     Hybrid Journal   (Followers: 3, SJR: 0.323, h-index: 9)
Applied Geophysics     Hybrid Journal   (Followers: 7, SJR: 0.541, h-index: 13)
Applied Intelligence     Hybrid Journal   (Followers: 14, SJR: 0.777, h-index: 43)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 3, SJR: 0.358, h-index: 34)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 4, SJR: 0.955, h-index: 33)
Applied Mathematics - A J. of Chinese Universities     Hybrid Journal   (SJR: 0.275, h-index: 8)
Applied Mathematics and Mechanics     Hybrid Journal   (Followers: 4, SJR: 0.37, h-index: 26)
Applied Microbiology and Biotechnology     Hybrid Journal   (Followers: 61, SJR: 1.262, h-index: 161)
Applied Physics A     Hybrid Journal   (Followers: 7, SJR: 0.535, h-index: 121)
Applied Physics B: Lasers and Optics     Hybrid Journal   (Followers: 23, SJR: 0.983, h-index: 104)
Applied Psychophysiology and Biofeedback     Hybrid Journal   (Followers: 7, SJR: 0.677, h-index: 47)
Applied Research in Quality of Life     Hybrid Journal   (Followers: 10, SJR: 0.288, h-index: 15)
Applied Solar Energy     Hybrid Journal   (Followers: 15, SJR: 0.251, h-index: 6)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 4, SJR: 0.351, h-index: 9)
Aquaculture Intl.     Hybrid Journal   (Followers: 22, SJR: 0.613, h-index: 40)
Aquarium Sciences and Conservation     Hybrid Journal   (Followers: 1)
Aquatic Ecology     Hybrid Journal   (Followers: 30, SJR: 0.646, h-index: 44)
Aquatic Geochemistry     Hybrid Journal   (Followers: 3, SJR: 0.764, h-index: 39)
Aquatic Sciences     Hybrid Journal   (Followers: 12, SJR: 1.172, h-index: 53)
Arabian J. for Science and Engineering     Hybrid Journal   (Followers: 5, SJR: 0.345, h-index: 20)
Arabian J. of Geosciences     Hybrid Journal   (Followers: 1, SJR: 0.417, h-index: 16)
Archaeological and Anthropological Sciences     Hybrid Journal   (Followers: 21, SJR: 1.056, h-index: 15)
Archaeologies     Hybrid Journal   (Followers: 12, SJR: 0.397, h-index: 13)
Archiv der Mathematik     Hybrid Journal   (Followers: 1, SJR: 0.597, h-index: 29)
Archival Science     Hybrid Journal   (Followers: 52, SJR: 0.804, h-index: 22)
Archive for History of Exact Sciences     Hybrid Journal   (Followers: 7, SJR: 0.28, h-index: 15)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 1, SJR: 0.946, h-index: 23)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (SJR: 4.091, h-index: 66)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 4, SJR: 0.865, h-index: 40)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 4, SJR: 2.841, h-index: 40)
Archives of Dermatological Research     Hybrid Journal   (Followers: 6, SJR: 0.9, h-index: 65)
Archives of Environmental Contamination and Toxicology     Hybrid Journal   (Followers: 10, SJR: 0.846, h-index: 84)
Archives of Gynecology and Obstetrics     Hybrid Journal   (Followers: 16, SJR: 0.695, h-index: 47)
Archives of Microbiology     Hybrid Journal   (Followers: 8, SJR: 0.702, h-index: 85)
Archives of Orthopaedic and Trauma Surgery     Hybrid Journal   (Followers: 8, SJR: 1.039, h-index: 56)
Archives of Osteoporosis     Hybrid Journal   (Followers: 2, SJR: 1.092, h-index: 13)
Archives of Sexual Behavior     Hybrid Journal   (Followers: 9, SJR: 1.198, h-index: 74)
Archives of Toxicology     Hybrid Journal   (Followers: 16, SJR: 1.595, h-index: 76)
Archives of Virology     Hybrid Journal   (Followers: 5, SJR: 1.086, h-index: 90)
Archives of Women's Mental Health     Hybrid Journal   (Followers: 13, SJR: 1.264, h-index: 50)
Archivio di Ortopedia e Reumatologia     Hybrid Journal  
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2, SJR: 1.2, h-index: 42)
ArgoSpine News & J.     Hybrid Journal   (SJR: 0.102, h-index: 3)
Argumentation     Hybrid Journal   (Followers: 5, SJR: 0.295, h-index: 18)
Arid Ecosystems     Hybrid Journal   (Followers: 3)
Arkiv för Matematik     Hybrid Journal   (Followers: 1, SJR: 0.948, h-index: 22)
Arnold Mathematical J.     Hybrid Journal   (Followers: 1)
Arthropod-Plant Interactions     Hybrid Journal   (Followers: 1, SJR: 0.797, h-index: 17)
Arthroskopie     Hybrid Journal   (Followers: 1, SJR: 0.145, h-index: 8)
Artificial Intelligence and Law     Hybrid Journal   (Followers: 10, SJR: 0.288, h-index: 25)
Artificial Intelligence Review     Hybrid Journal   (Followers: 15, SJR: 0.948, h-index: 48)
Artificial Life and Robotics     Hybrid Journal   (Followers: 8, SJR: 0.231, h-index: 14)
Asia Europe J.     Hybrid Journal   (Followers: 4, SJR: 0.247, h-index: 9)
Asia Pacific Education Review     Hybrid Journal   (Followers: 9, SJR: 0.371, h-index: 17)
Asia Pacific J. of Management     Hybrid Journal   (Followers: 11, SJR: 1.676, h-index: 50)
Asia-Pacific Education Researcher     Hybrid Journal   (Followers: 11, SJR: 0.353, h-index: 13)
Asia-Pacific Financial Markets     Hybrid Journal   (Followers: 2, SJR: 0.19, h-index: 15)
Asia-Pacific J. of Atmospheric Sciences     Hybrid Journal   (Followers: 20, SJR: 1.006, h-index: 14)
Asian Business & Management     Hybrid Journal   (Followers: 7, SJR: 0.41, h-index: 10)
Asian J. of Business Ethics     Hybrid Journal   (Followers: 7)
Asian J. of Criminology     Hybrid Journal   (Followers: 5, SJR: 0.263, h-index: 8)
AStA Advances in Statistical Analysis     Hybrid Journal   (Followers: 2, SJR: 0.681, h-index: 15)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 5, SJR: 0.195, h-index: 5)
ästhetische dermatologie & kosmetologie     Full-text available via subscription  
Astronomy and Astrophysics Review     Hybrid Journal   (Followers: 21, SJR: 4.511, h-index: 44)
Astronomy Letters     Hybrid Journal   (Followers: 19, SJR: 0.58, h-index: 30)
Astronomy Reports     Hybrid Journal   (Followers: 12, SJR: 0.473, h-index: 23)
Astrophysical Bulletin     Hybrid Journal   (Followers: 2, SJR: 0.469, h-index: 11)

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Journal Cover Adsorption
  [SJR: 0.774]   [H-I: 52]   [4 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1572-8757 - ISSN (Online) 0929-5607
   Published by Springer-Verlag Homepage  [2329 journals]
  • Oxygen uptake, selectivity and reversibility of Tb–CeO 2 mixed
           oxides for air separation
    • Authors: Anita M. D’Angelo; Alan L. Chaffee
      Pages: 465 - 475
      Abstract: Abstract A series of Tb–CeO2 mixed oxides were investigated as novel oxygen sorbents. The relationship between %Tb content-oxygen uptake, alongside the selectivity and reversibility of these materials, was determined via chemisorption (400, 500 and 600 °C) and supporting thermogravimetric studies at 500 and 600 °C. Oxygen chemisorption experiments conducted at 600 °C showed higher uptakes were achieved by incorporating more Tb into the CeO2 crystal lattice. The uptake of 40 mol% Tb–CeO2 was 121 μmol g−1 and for 10 mol% Tb–CeO2 the uptake was 34 μmol g−1. Increasing the analysis temperature for each material resulted in an increase in uptake as more oxygen was able to be removed. All materials exhibited good reversibility and cyclic stability during alternating N2 and air atmospheres at 600 °C. High O2/N2 selectivity was also demonstrated as no detectible uptake was observed at 600 °C using N2 as the adsorbate. The data suggests that these materials may have applications in air trace gas removal or as membranes for air separation applications.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-016-9855-0
      Issue No: Vol. 23, No. 4 (2017)
       
  • Optimising batch adsorbers for the removal of zinc from effluents using a
           sodium diimidoacetate ion exchange resin
    • Authors: Alireza Bazargan; Tsz-Him Shek; Chi-Wai Hui; Gordon McKay
      Pages: 477 - 489
      Abstract: Abstract An ion exchange resin, based on the sodium diimidoacetate structure, has been tested for the removal of zinc ions from effluents. After employing three isotherm models, namely, Langmuir, Freundlich and Langmuir–Freundlich to measure and analyse equilibrium isotherms, a series of agitated batch experiments have been carried out to optimise the removal of zinc ions in a two-stage batch system. The first optimisation model involves minimising the total amount of resin required to achieve a specific percentage zinc removal. The second optimisation study involves minimising the total batch contact time to achieve a certain percentage zinc removal.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-016-9857-y
      Issue No: Vol. 23, No. 4 (2017)
       
  • Adsorption of Human Serum Albumin (HSA) on a mixed-mode adsorbent:
           equilibrium and kinetics
    • Authors: Pedro Ferreira Gomes; José Miguel Loureiro; Alírio E. Rodrigues
      Pages: 491 - 505
      Abstract: Abstract The adsorption equilibrium and kinetics of Human Serum albumin (HSA) onto a novel high particle density multimodal adsorbent were studied by batch adsorption experiments. MabDirect MM, from Upfront Chromatography A/S, is an agarose-tungsten carbide composite adsorbent with an anionic mixed mode ligand. The effects of ionic strength (by addition of salt) and of pH are assessed. Langmuir isotherms parameters are obtained along with pore diffusivity values by fitting the batch experiments using a pore diffusion model. Under the studied conditions for pH 5.0, without salt, it was obtained the largest adsorption capacity (36.0 ± 3.5 mg·gadsorbent,dry −1) a typical behavior for a mixed mode adsorbent. Effective pore diffusivity (Dpe) was estimated as (2.2 ± 0.1) × 10−6 cm2·min−1 for this condition. Additionally, the lowest adsorption capacity (8.6 ± 2.1 mg·gadsorbent,dry −1) and an estimation of Dpe equal to (2.4 ± 0.6) × 10−6 cm2·min−1 were obtained for pH 7.0 without salt. An alternative method of Dpe estimation is used and validate the results obtained by simulations. Furthermore, several experiments were carried out in a fixed bed column with the aim to understand the kinetics and hydrodynamics, and to validate the batch adsorption results. For a feed concentration of ±0.92 g·L−1, pH 5.0, without salt, for cleaned and fresh adsorbent, fixed bed dynamic binding capacities of 13.84 and 14.37 mg·gadsorbent,dry −1 were obtained, respectively, representing near 50% of saturation capacity.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-017-9861-x
      Issue No: Vol. 23, No. 4 (2017)
       
  • Adsorption of propylene, propane, ethylene and ethane in an isoreticular
           series of MOF-74 structures
    • Authors: Mohammad Gholami; Saeid Yeganegi
      Pages: 507 - 514
      Abstract: Abstract Alkene/alkane separation is the most expensive stage in the process of propylene or ethylene producing. Adsorptive separation with porous solid adsorbents is an alternative way to currently used cryogenic distillation process. In this work by GCMC simulation we investigate propane, propylene, ethane and ethylene adsorption in an isoreticular series of IRMOF-74-I (Mg-MOF-74) structures with different pore size. The adsorption isotherms of pure components as well as the selectivity of binary mixtures of propylene/propane and ethylene/ethane at the pressure fixed at 1 bar with variable composition are determined at 318 K. Also, the snapshots of guest adsorption are used to elucidate the adsorption mechanisms. At low pressure, ethane uptake is the same for all studied structures. IRMOF-74-I has the highest ethylene uptake at low pressure and also ethylene/ethane selectivity among studied MOFs. Open metal site is the first preferential site for adsorbing the guest in all structures. IRMOF-74-II, IRMOF-74-III and IRMOF-74-IV have additional site for adsorbing guest molecules. This additional adsorption site makes propylene and propane uptakes higher than that of IRMOF-74-I at low pressure. The second preferential site of IRMOF-74-II, IRMOF-74-III and IRMOF-74-IV, organic linker, interact with propane and propylene as the same and can’t separate them so IRMOF-74-II, IRMOF-74-III and IRMOF-74-IV have lesser selectivity than IRMOF-74-I. At high pressure, IRMOF-74-IV with largest pore size has the highest uptake for all studied hydrocarbons.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-017-9862-9
      Issue No: Vol. 23, No. 4 (2017)
       
  • Multi-cell model for pressure swing adsorption process
    • Authors: Satyanjay Sahoo; Anshu Shukla; Arun S. Moharir
      Pages: 515 - 534
      Abstract: Abstract Pressure Swing Adsorption process is a discrete–continuous system by nature and it is extremely time consuming to simulate steady state performance for a given set of design and operating parameters. A multitude of design variations is offered by the configuration of Pressure Swing Adsorption cycle in terms of choice, sequence, and durations of various possible component steps implemented on two or more adsorber beds. Often, simplifying assumptions are made to speed up each simulation. These assumptions erode the quality of match between reality and simulation and make the resultant design approximate. Use of assumptions like no adsorption/desorption during the pressurization and blowdown steps, constancy in volumetric flow during the adsorption and purge steps makes the model computationally lighter but raises questions on its predictive power. A new modeling approach, namely Multi-cell Model is presented in this work. It is shown to avoid the extensive time taken with equation-based simulations and to have better predictive power. The model is used to study a representative Pressure Swing Adsorption process for nitrogen enrichment from the air. Numerical convergence with respect to the spatial and temporal step sizes and mass balance closure is verified. The model is generic in nature and is valid for any multi-bed, multi-adsorbent, multi-component Pressure Swing Adsorption process executing any combination of component steps.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-017-9865-6
      Issue No: Vol. 23, No. 4 (2017)
       
  • The design and operation of a simulated moving bed for the separation of
           intermediate retention components from a multi-component feedstock with a
           very strong retention component
    • Authors: Ru-Chien Liang; XiaoQing Bao; Ly Sung; Chih-Hsiung Lin; Ming-Tsai Liang
      Pages: 535 - 549
      Abstract: Abstract This study presents two designs for a seven-zone SMB (Simulated Moving Bed) and the procedures for establishing the operating conditions for the direct separation of IRC (intermediate retention component) from a feedstock with VSRC (very strong retention component). Normally, the crude extract from natural products or fermented liquid can rarely be directly applied as the feedstock for continuous chromatography due to its multiple components and VSRC. Two SMBs connected in series can usually work to separate a ternary mixture; yet, an additional zone for CIP (cleaning in place) is commonly required to remove the VSRC. By using a seven-zone SMB, this study successfully separates the IRC from two different crude extracts with VSRC. By examining the relative retention of IRC to WRC (weak retention components), this study proposes two SMB designs to separate the IRC. Based on the Triangle theory, a three-step procedure is also proposed, and two crude extracts: an anticancer drug produced by fermentation and astaxanthin extracted from red algae, were used as working examples in this study. Both samples showed that the separation of the IRC with near 90% purity and recovery can be achieved by following the three-step procedure without knowing the adsorption isotherms of the impurities, which will quickly provide useful information for further feasibility studies and scaled-up designs.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-017-9866-5
      Issue No: Vol. 23, No. 4 (2017)
       
  • An analysis of the effect of the additional activation process on the
           formation of the porous structure and pore size distribution of the
           commercial activated carbon WG-12
    • Authors: Mirosław Kwiatkowski; Joanna Sreńscek-Nazzal; Beata Michalkiewicz
      Pages: 551 - 561
      Abstract: Abstract The paper presents the results of research into the effects of the additional activation process of the commercial activated carbon WG-12 with KOH, ZnCl2, KOH/ZnCl2 and K2CO3 as activating agents on the formation of the porous structure and the adsorptive properties of that material. The numerical analyses were carried out on the basis of the isotherms of nitrogen adsorption with the use of the method based on the Brunauer-Emmett-Teller, the Dubinin-Radushkevich equations, the non-local and the quenched solid density functional theories as well as the LBET method with the unique fast multivariate procedure of porous structure identification and the new LBET class adsorption models. Also, the research in question yielded information regarding the usefulness of the said methods of carbonaceous adsorbent porous structure description for practical technological applications and scientific research, as well as the possibilities to make practical use of the research results.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-017-9867-4
      Issue No: Vol. 23, No. 4 (2017)
       
  • Monosaccharide separation from ZnCl 2 molten salt hydrates by zeolite beta
    • Authors: Johan van den Bergh; Wouter Wiedenhof; Dorota Siwy; Hans Heinerman
      Pages: 563 - 568
      Abstract: Abstract Solvent based processes using ionic liquids or molten salt hydrates provide very efficient cellulose dissolution and hydrolysis from lignocellulosic biomass. Efficient separation of sugars from the solvent is very challenging and a hurdle regarding industrial application. Now it is demonstrated that a microporous zeolitic sorbent can provide a very efficient separation of monosugars from a molten salt hydrate containing hydrolysates. Specific details are presented for the separation of glucose from a ZnCl2 molten salt hydrate using Zeolite beta. The molten salt hydrate is promoting the separation in this specific solvent/sorbent combination through a type of salting out adsorption mechanism, leading to a process based on a solvent that allows both efficient cellulose dissolution and hydrolysis and very efficient glucose isolation from the solvent afterwards.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-017-9868-3
      Issue No: Vol. 23, No. 4 (2017)
       
  • Net, excess and absolute adsorption in mixed gas adsorption
    • Authors: Stefano Brandani; Enzo Mangano; Mauro Luberti
      Pages: 569 - 576
      Abstract: Abstract The formulation of a thermodynamic framework for mixtures based on absolute, excess or net adsorption is discussed and the qualitative dependence with pressure and fugacity is used to highlight a practical issue that arises when extending the formulations to mixtures and to the Ideal Adsorbed Solution Theory (IAST). Two important conclusions are derived: the correct fundamental thermodynamic variable is the absolute adsorbed amount; there is only one possible definition of the ideal adsorbed solution and whichever starting point is used the same final IAST equations are obtained, contrary to what has been reported in the literature.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-017-9875-4
      Issue No: Vol. 23, No. 4 (2017)
       
  • Comparing multi-column chromatographic processes for purifying
           monosaccharides part I: A simplified approach
    • Authors: Laurent David; Jay Yun; Roger-Marc Nicoud
      Pages: 577 - 591
      Abstract: Abstract This work proposes a methodology for comparing different multi-column chromatographic processes (SMB, ISMB, SSMB) for purifying monosaccharides. The first step of the methodology consists in determining the flow rates associated with the different processes assuming that the columns are infinitely efficient. This allows deriving “idealized” operating conditions. In a second step, using the “idealized” conditions, the behavior of the real systems associated with columns of finite efficiencies are simulated with ChromWorks™ and compared. It is shown that the SMB performs better than single column elution chromatography, and that, for the application selected, ISMB and SSMB are very similar and perform better than SMB.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-017-9878-1
      Issue No: Vol. 23, No. 4 (2017)
       
  • Relationship between pore-size distribution and flexibility of adsorbent
           materials: statistical mechanics and future material characterization
           techniques
    • Authors: Daniel. W. Siderius; Nathan. A. Mahynski; Vincent K. Shen
      Pages: 593 - 602
      Abstract: Abstract Measurement of the pore-size distribution (PSD) via gas adsorption and the so-called “kernel method” is a widely used characterization technique for rigid adsorbents. Yet, standard techniques and analytical equipment are not appropriate to characterize the emerging class of flexible adsorbents that deform in response to the stress imparted by an adsorbate gas, as the PSD is a characteristic of the material that varies with the gas pressure and any other external stresses. Here, we derive the PSD for a flexible adsorbent using statistical mechanics in the osmotic ensemble to draw analogy to the kernel method for rigid materials. The resultant PSD is a function of the ensemble constraints including all imposed stresses and, most importantly, the deformation free energy of the adsorbent material. Consequently, a pressure-dependent PSD is a descriptor of the deformation characteristics of an adsorbent and may be the basis of future material characterization techniques. We discuss how, given a technique for resolving pressure-dependent PSDs, the present statistical mechanical theory could enable a new generation of analytical tools that measure and characterize certain intrinsic material properties of flexible adsorbents via otherwise simple adsorption experiments.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-017-9879-0
      Issue No: Vol. 23, No. 4 (2017)
       
  • Mechanism of adsorption of actives onto microporous functionalised calcium
           carbonate (FCC)
    • Authors: Charlotte L. Levy; G. Peter Matthews; Giuliano M. Laudone; Samuel Beckett; Andrew Turner; Joachim Schoelkopf; Patrick A. C. Gane
      Pages: 603 - 612
      Abstract: Abstract Microporous ‘functionalised’ calcium carbonate (FCC) has potential for use as a carrier for the controlled release of ‘actives’, by permeation and diffusion. We have investigated the nature of the FCC surface and the mechanism of adsorption of two typical actives, namely the anti-inflammatory drug aspirin and the flavour compound vanillin, from chloroform and aqueous ethanolic solutions. There is indirect evidence from the quantitative perturbation of Tóth isotherms that their adsorption is hindered by a stagnant diffusion layer of water trapped in the micro-porosity of the FCC. To complement previous studies of the surface of FCC, it was also tested with the cationic probe benzyltrimethylammonium bromide and the anionic probe sodium 2-naphthalenesulphonate. Experimental procedures were validated by comparison with adsorption onto ground calcium carbonate and high surface area talc.
      PubDate: 2017-05-01
      DOI: 10.1007/s10450-017-9880-7
      Issue No: Vol. 23, No. 4 (2017)
       
  • Atom–surface scattering: a comparative study considering real and
           complex absorbing potentials
    • Authors: Maryam Mansoori Kermani; Ali Maghari
      Abstract: In this paper a low density atomic gas colliding on a solid surface was modelled using the quantum scattering theory. The surface has discrete trapping/scattering centers in its lattice. In the model, a harmonic potential for the surface atoms interaction and a constant effective mean field for the gas atoms interactions were considered. The projectile atoms were assumed to be interacted with a solid surface atoms by two different potential models: (i) the Morse potential model, which is a real absorbing potential; and (ii) the Scarf II potential, which is a complex absorbing potential. The scattering probability densities for both models were calculated analytically via the first Born approximation. The effect of the incident atom energies as well as the distance of gas atoms from the surface on the probability densities were studied for both real and complex absorbing potentials. Comparisons have been made between these two types of potentials using the Lippmann–Schwinger quantum scattering equation. It was found that in addition to the competition between repulsive and attractive parts of the potentials, the imaginary part of the complex Scarf II potential has a significant effect on the distance of gas atoms from the surface. The adsorption probabilities of incident atoms on the surface considering the Morse model as well as Scarf II potential were obtained analytically as a function of distance from surface and kinetic energy of projectiles. Comparison our calculated adsorption coefficient with the simulation data of isothermal density distribution for nitrogen and argon adsorbed on the graphite surface shows that the maximum adsorption positions for both potential models provide a good agreement with simulation results.
      PubDate: 2017-05-24
      DOI: 10.1007/s10450-017-9890-5
       
  • Experimental study on the effect of inherent moisture on hard coal
           adsorption–desorption characteristics
    • Authors: Liang Wang; Er-tao Chen; Shimin Liu; Yuan-ping Cheng; Long-biao Cheng; Ming-yi Chen; Hai-jun Guo
      Abstract: Coal is a complex geological body that is composed of organic material, gas, and water. Generally, coal with high hardness is commonly considered to be a non-outburst risk; however, several coal mines with hard coal seams in China have experienced coal and gas outbursts. Coals with different degrees of metamorphism have different inherent moisture ranges, which has a strong influence on gas adsorption and desorption. Currently, inhomogeneous moisture wetting remains an issue in traditional preparation methods for preparing coal samples with different moisture levels. In this paper, we chose three typical hard coals with different degrees of metamorphism and systematically studied their pore structure characteristics, effect of approximate inherent moisture on the gas adsorption–desorption characteristics, and gas diffusion of hard coals. The results show that all of the coal samples have an open pore structure, but each coal sample has different development characteristics of their pore structure. The higher the moisture, the shorter the adsorption equilibrium time required and the lower pressure drop. All of the adsorption isotherm curves fit the Langmuir equation well. The gas adsorption capacity of the same coal sample decreases gradually and the amplitude of the gas adsorption capacity decreases with increasing moisture. This relationship indicates that the existence of moisture occupies a certain space of the pore structure and reduces the gas adsorption sites of coal, reducing the adsorption and desorption amount of the coal samples. Moreover, low and middle rank coal can use the bidisperse model to calculate the diffusion coefficient, while high rank coal can use the unipore model. Increasing moisture causes the macropore diffusion coefficient D a,e and micropore diffusion coefficient D i,e of the YZG and YJ samples to decrease. The effective diffusion coefficient D e of the WLH samples also reduced gradually, which suggests that moisture has an influence on the gas migration and diffusion channels of coal, reducing the gas adsorption equilibrium time, desorption rate, and diffusion rate of coal seam.
      PubDate: 2017-05-22
      DOI: 10.1007/s10450-017-9889-y
       
  • Modification of the surface chemistry of microdispersed sintered
           detonation nanodiamonds and its effect on the adsorption properties
    • Authors: S. N. Lanin; S. A. Rychkova; A. E. Vinogradov; K. S. Lanina; O. N. Obrezkov; P. N. Nesterenko
      Abstract: Microdispersed sintered detonation nanodiamonds (MSDN) with different surface chemistry were characterized using X-ray diffraction method, energy dispersive spectroscopy (EDS) and adsorption of ionogenic and nonionogenic compounds in static and dynamic (with HPLC instrumental design) conditions. It was shown that for MSDN, conditioned with 3 × 10−3 M H3PO4, adsorption of substances with basic properties increases by 13.5–22.0, while washing of MSDN with 1.3 × 10−5 М ammonium hydroxide decreases adsorption of bases as a result of modification of ionic state of functional groups at the surface. It is found that concentration of H3PO4 solution significantly effects on adsorption of ionogenic organic substances. The effect of organic solvent is investigated by obtaining of isotherms of excessive adsorption of pyridine on MSDN from solutions in water and acetonitrile under static conditions. It is found that the equilibration of MSDN with acid solution activates its surface for adsorption of pyridine that may be due to desorption of substances blocking acidic adsorption centers. It was shown that usage of buffers containing additives of ammonium, potassium and sodium electrolytes results in decrease of adsorption of basic molecules, which is explained by competitive adsorption of cations on dissociated carboxyl functional groups on the surface of MSDN.
      PubDate: 2017-05-16
      DOI: 10.1007/s10450-017-9883-4
       
  • Role of chemical structures in coalbed methane adsorption for anthracites
           and bituminous coals
    • Authors: Yongshuai Fu; Xianfeng Liu; Boqing Ge; Zhenghong Liu
      Abstract: Abstract An in-depth investigation was conducted on four bituminous coals and three anthracites regarding the chemical structural characteristics using Fourier transform infrared spectroscopy (FTIR). The FTIR spectra of coals can be well approximated by the combination of Gaussian/Lorentzian peaks. FTIR parameters, including aromatic structures, aliphatic structures and oxygen-containing groups (C=O), were determined from curve-fitting analysis. Methane adsorption measurements were carried out through an equilibrium volumetric method, and the Langmuir equation was applied to fit the experimental data. Correlations were established for these FTIR structural parameters and methane adsorption parameters (V L and P L). From the results obtained, it can be seen that rapid changes occur for bituminous coals with the vitrinite reflectance, R o = 1.1–2.1%. The sharp variations of the apparent aromaticity, f a, and A(CH2)/A(CH3) indicate the significant intensive aromatization and the decrease of aliphatic methylene groups, respectively. As a consequence, the size of aromatic clusters is greatly enhanced with increasing coalification. However, the oxygen-containing functional groups, ´C´, varying from 0.43 for sample WJD to 0.10 for sample ZZ, presents a negative linear relationship with R o. Once R o > 2.1% (anthracite), both f a and A(CH2)/A(CH3) tend to be steady. The defects and degree of disorder in coal structure have been reduced to a large extent, and the graphite microcrystalline structure in coal is gradually perfected for anthracites. Coals with higher f a provide more adsorption sites for methane occupation on coal surface, thus demonstrating stronger adsorption capacities. However, the aliphatic methylene groups and oxygen-containing functional groups can decrease the CH4 adsorption amount at low pressure stage (<5 MPa), further reducing the adsorption properties. These findings may have great significance for accurate estimation reserves of coalbed methane and the prevention of gas disasters underground coal mine.
      PubDate: 2017-05-03
      DOI: 10.1007/s10450-017-9888-z
       
  • Roll-up effect of sulfur dioxide adsorption on zeolites FAU 13X and LTA 5A
    • Authors: Guanghui Li; Qishuai Wang; Tao Jiang; Jun Luo; Mingjun Rao; Zhiwei Peng
      Abstract: Abstract The roll-up effect occurs as a result of the displacement of SO2 with H2O(g) when sulfur dioxide from humid flue gas is adsorbed by zeolites. It is mainly affected by SiO2/Al2O3 ratio (S/A) of zeolites, despite lack of detailed studies on use of hydrophilic zeolite. In this study, two zeolites of FAU 13X (S/A of 1.77) and LTA 5A (S/A of 1.51) were used to explore their roll-up effects using the breakthrough curve method. It is shown that the zeolite structure significantly influences the roll-up effect. The roll-up effect of FAU 13X is more significant than that of LTA 5A at the same water vapor content. The maximum roll-up ratio (η) for LTA 5A and FAU 13X are, respectively, 1.23 and 2.55 within the water vapor content range of 0.9–2.4%. Moreover, η of FAU 13X tends to decrease more rapidly than that of LTA 5A with increasing temperature or decreasing adsorption gas pressure. The presence of oxygen inhibits the roll-up effect and increases the breakthrough time of SO2. For the acid-modified zeolite, there is a positive correlation between η and concentration of Ca2+ or Na+ on zeolite surface, indicating obvious impact of cations on the roll-up effect.
      PubDate: 2017-04-19
      DOI: 10.1007/s10450-017-9887-0
       
  • Selection of a stationary phase for the chromatographic separation of
           organic acids obtained from bioglycerol oxidation
    • Authors: Lucas C. D. Coelho; Nelson M. L. Filho; Rui P. V. Faria; Ana M. Ribeiro; Alírio E. Rodrigues
      Abstract: Abstract A screening study of the chromatographic separation of Glyceric Acid (GCA) and Tartronic Acid (TTA) was performed using three different polystyrene-divinylbenzene ion-exchange resins in hydrogen form (Dowex® 50WX-8, Dowex® 50WX-4, Dowex® 50WX-2). The experiments were described by the axial dispersion flow model with the LDF approximation incorporated into the software gPROMS. From the three investigated adsorbents differing by the crosslinking, Dowex® 50WX-2 has presented the higher adsorption capacity, as well as the highest bed efficiency expressed by the number of theoretical plates. The adsorption equilibrium constants were determined from single breakthrough experiments, and a very good agreement between experimental and simulated data was achieved for both single components and binary mixtures. Therefore, the fundamental data determined within this work represents a key contribution to the design of continuous chromatographic processes for the purification of GCA and TTA.
      PubDate: 2017-04-11
      DOI: 10.1007/s10450-017-9882-5
       
  • A robust dynamic column breakthrough technique for high-pressure
           measurements of adsorption equilibria and kinetics
    • Authors: Thomas Saleman; Gongkui Xiao; Gang Li; Eric F. May
      Abstract: Abstract Adsorption equilibria and kinetics of N2 and CH4 on four adsorbents, namely commercial activated carbon Norit RB3, zeolite 13X, zeolite 4A and molecular sieving carbon MSC-3K 172, were measured at temperatures of (273 and 303) K in the pressure range of (25–900) kPa using an improved dynamic breakthrough apparatus. Equilibrium adsorption measurements were performed with breakthrough experiments, and sorption kinetics were measured with a chromatographic pulse technique to eliminate undesirable systematics such as buoyancy and limitations imposed by heat transfer in conventional breakthrough techniques. The differential equations governing the spreading of a pulse passing through the column were solved in the Laplace domain to reduce numerical dispersion and artefacts associated with solving these equations for adsorption in the time domain on a finite grid. A method for identifying the reliable measurement range of sorption rates (mass transfer coefficients) from 10−4 to 1 s−1 was proposed and demonstrated with the four adsorbents. The sorption rates for Norit RB3 and zeolite 13X had values above the upper resolvable limit of 1 s−1. The measured sorption rates for MSC-3K 172 and zeolite 4A were compared with values obtained independently using a static volumetric method on the same adsorbents at the same temperatures but over a lower pressure range (0–110 kPa) (Xiao et al., Adsorption 23 (2017) 131–147). The sorption rates obtained for the two adsorbents via these two independent techniques were consistent within the measurement uncertainty of each method, which significantly increases the confidence with which these values can be used in simulations of industrial PSA processes.
      PubDate: 2017-04-09
      DOI: 10.1007/s10450-017-9884-3
       
  • Results of comparative sorption studies of the coal-methane system carried
           out by means of an original volumetric device and a reference gravimetric
           instrument
    • Authors: Mateusz Kudasik
      Abstract: Abstract The present paper discusses the idea of an innovative device for sorption measurements, working under isobaric conditions and based on a precise piston pressure regulator. As part of the research, the author compared the results of sorption measurements obtained with the constructed piston sorptomat with the results obtained by means of a reference device. The sorption capacities of 15 granular high-volatile bituminous coal samples, determined on the basis of methane sorption courses registered with both instruments were compared. The author also defined the criterion of compatibility of the obtained results, which stated that the compared results are compatible if their values fall within the range of measurement uncertainties of the instruments with which they had been established. After comparing the results obtained with the original instrument with the results obtained with the reference gravimetric device, it was observed that 30 out of 33 measurements of sorption capacities were classified as compatible (based on the defined measurement compatibility criterion). The mean difference in the readings provided by both instruments was 1.64%, for sorption capacity determined in 33 measurement points and the methane pressure range of 1–10 bar.
      PubDate: 2017-04-04
      DOI: 10.1007/s10450-017-9881-6
       
 
 
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