High pressure gas permeability of microporous carbon membranes |
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| Institution: | 1. Institute of Physical Chemistry, NCSR Demokritos, 153 10 Ag. Paraskevi, Attikis, Greece;2. Institute of Nuclear Technology and Radiation Protection, NCSR Demokritos, 153 10 Ag. Paraskevi, Attikis, Greece;3. School of Chemical Engineering, University of Bath, BA2 7AY Bath, UK;1. Symbiosis Institute of Technology, Symbiosis International (Deemed University), Lavale, Pune, 412115, India;2. Vishwakarma Institute of Information Technology, S. No. 3/4, Kondhwa (Bk), Pune, 411048, India;3. Bharati Vidyapeeth (Deemed to be University) College of Engineering, Pune-Satara Road, Pune, 411043, India;4. Tata Institute of Fundamental Research, Navy Nagar, Mumbai, 400005, India;1. Sakarya Üniversitesi, Fen-Edebiyat Fakültesi, Fizik Bölümü, 54187 Adapazarı, Turkey;2. School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL, UK;1. CSIR-Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, India;2. Academy of Scientific and Innovative Research, Rafi Marg, New Delhi 110011, India;3. UIETE, Panjab University, Chandigarh 160014, India;1. Center for Materials Modeling and Simulations, University of Malakand, Chakdara, Dir (L), Pakistan;2. Department of Physics, Faculty of Science, University of Isfahan, Hezar Gerib Avenue, Isfahan 81744, Iran;1. Institute of Nanomaterial & Nanostructure, Changsha University of Science and Technology, Changsha 410114, China;2. Hunan Province Higher Education Key Laboratory of Modeling and Monitoring on the Near-Earth Electromagnetic Environments (Changsha University of Science and Technology), Changsha 410114, China |
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| Abstract: | Microporous carbon membranes are prepared, characterised structurally and tested in terms of high pressure CO2 permeability at temperatures around the critical. A maximum in the permeance versus relative pressure curve is observed in close analogy to the case of mesoporous membranes. This weakens considerably as the temperature is increased above the critical. The results offer significant input for an improved understanding and theoretical modelling of the process and may be potentially useful for the identification of the optimal pressure and temperature conditions for efficient gas separations. |
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