H2 permeation and its influence on gases through a SAPO-34 zeolite membrane |
| |
| Affiliation: | 1. Institute on Membrane Technology of the National Research Council of Italy (CNR-ITM), via P. Bucci 17C, 87036, Rende, CS, Italy;2. The Advanced Energy Technology Institute of the National Research Council of Italy (CNR-ITAE), Salita Santa Lucia Sopra Contesse 5, 98126, Messina, ME, Italy;1. Department of Mechanical Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia;2. Department of Mechanical Engineering, Faculty of Engineering-Rabigh, King Abdulaziz University, Jeddah 21589, Saudi Arabia;3. Center of Excellence in Desalination Technology, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia;4. Institute on Membrane Technology (CNR-ITM), via P. Bucci 17/C, 87036 Rende (CS) Italy;5. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China;1. Institute of Catalysis, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Bldg. 11, 1113 Sofia, Bulgaria;2. Istituto per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche, Via Ugo La Malfa 153, 90146 Palermo, Italy;1. Institute on Membrane Technology (ITM-CNR), National Research Council, c/o The University of Calabria, Cubo 17C, Via Pietro Bucci, 87036 Rende, CS, Italy;2. Department of Energy Engineering, College of Engineering, Hanyang University, Seoul 133-791, Republic of South Korea;1. National Research Council of Italy, Institute on Membrane Technology, CNR-ITM, Cubo 17, C via P. Bucci, 87036 Rende, CS, Italy;2. National Research Council of Italy, Institute of Nanotechnology, CNR-NANOTEC S.S. Cosenza, Cubo 31C, via P., Bucci, 87036 Rende, CS, Italy;3. University of Calabria, Department of Physics, via P. Bucci 33B, 87036 Rende, CS, Italy;4. University of Milano-Bicocca, Department of Informatics, Systems and Communication, Viale Sarca 336, 20126 Milano, Italy |
| |
| Abstract: | This work analysed the permeation of binary and ternary H2-containing mixtures through a SAPO-34 membrane, aiming at investigating how hydrogen influences and its permeation is influenced by the presence of the other gaseous species, such as CO2 and CH4. We considered the behaviour of various gas mixtures in terms of permeability and selectivity at various temperatures (25–300 °C), feed pressures (400–1000 kPa) and compositions by means of an already validated mass transport model, which is based on surface and gas translation diffusion. We found that the presence of CO2 and CH4 in the H2-containing mixtures influences in a similar way the H2 permeation, reducing its permeability of about 80% compared to the single-gas value because of their stronger adsorption. On the other hand, H2 promotes the permeation of CO2 and CH4, causing an increment of their permeability with respect to those as single gases. These combined effects reflected in interesting selectivity values in binary mixture (e.g., CO2/H2 about 11 at 25 °C, H2/CH4 about 9 at 180 °C), which showed the potential of SAPO-34 membranes in treating of H2-containing mixtures. |
| |
| Keywords: | Zeolite membrane Gas separation Hydrogen separation |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
