LAPSE:2020.0829
Published Article
LAPSE:2020.0829
Efficiency Separation Process of H2/CO2/CH4 Mixtures by a Hollow Fiber Dual Membrane Separator
July 17, 2020
Hydrogen purification and CO2 capture are of great significance in refineries and pre-combustion power plants. A dual membrane separator offers an alternative approach for improving H2/CO2 separation efficiency. In this work, H2/CO2/CH4 ternary gas mixtures separation can be achieved by a dual membrane separator with an integrated polyimide (PI) membrane and polydimethylsiloxane/polyetherimide (PDMS/PEI) composite membrane. A hollow fiber dual membrane separation equipment is designed and manufactured. Through the self-designed device, the effects of stage cut, operating temperature, operating pressure, and membrane area ratio on separation performance of dual membrane separator have been studied. The results indicate that, at a high stage cut, a dual membrane separator has obvious advantages over a single membrane separator. Operating temperature has a significant impact on gas permeation rates. At 25 °C, a dual membrane separator can obtain the highest purity of H2 and CO2. By increasing operating pressure, the purity and recovery of H2 and CO2 can be improved simultaneously. The effect of the membrane area ratio on the performance of the dual membrane separator was studied. When the permeate flows of two membranes are approximately equal by changing the membrane area ratio, the overall performance of the dual membrane separator is the best. On the basis of its synergy in promoting separation, the dual membrane separator holds great industrial application potential.
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Keywords
dual membrane separator, hydrogen purification, membrane area ratio, Optimization, ternary gas mixtures
Subject
Suggested Citation
Xiao W, Gao P, Dai Y, Ruan X, Jiang X, Wu X, Fang Y, He G. Efficiency Separation Process of H2/CO2/CH4 Mixtures by a Hollow Fiber Dual Membrane Separator. (2020). LAPSE:2020.0829
Author Affiliations
Xiao W: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China [ORCID]
Gao P: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
Dai Y: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; Panjin Industrial Technology Institute, Dalian University of Technology, Panjin 1 [ORCID]
Ruan X: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
Jiang X: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
Wu X: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
Fang Y: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
He G: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; Panjin Industrial Technology Institute, Dalian University of Technology, Panjin 1
Gao P: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
Dai Y: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; Panjin Industrial Technology Institute, Dalian University of Technology, Panjin 1 [ORCID]
Ruan X: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
Jiang X: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
Wu X: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
Fang Y: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
He G: State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; Panjin Industrial Technology Institute, Dalian University of Technology, Panjin 1
Journal Name
Processes
Volume
8
Issue
5
Article Number
E560
Year
2020
Publication Date
2020-05-09
Published Version
ISSN
2227-9717
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PII: pr8050560, Publication Type: Journal Article
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LAPSE:2020.0829
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External Link
doi:10.3390/pr8050560
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[v1] (Original Submission)
Jul 17, 2020
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Jul 17, 2020
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https://psecommunity.org/LAPSE:2020.0829
Original Submitter
Calvin Tsay
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