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题名: Poly(amide-6-b-ethylene oxide) membranes for sour gas separation
作者: Ren, Xiaoling1;  Ren, Jizhong1;  Deng, Maicun1
关键词: Poly(amide-6-b-ethylene oxide) ;  Sour gas separation ;  Composite membrane
刊名: SEPARATION AND PURIFICATION TECHNOLOGY
发表日期: 2012-03-22
DOI: 10.1016/j.seppur.2012.01.004
卷: 89, 页:1-8
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: In this paper, poly(amide-6-b-ethylene oxide) (PEBA1657) copolymer was used to prepare polyetherimide (PEI)/PEBA1657 composite membranes and ultra thin multilayer PEI/polydimethylsilicone (PDMS)/PEBA1657/PDMS composite membranes by dip-coating method for sour gas capturing. The gas permeation and transport characteristics of sour gases (CO2, H2S, and SO2) are investigated and analyzed. With the increase of transmembrane pressure difference, the permeation of H2S, CO2, and SO2 is enhanced due to pressure-induced plasticization effect. The temperature dependency of H2S permeance for PEI/PEBA1657 composite membranes changes from positive to negative when the transmembrane pressure difference increases from 3 to 7 atm. However, the SO2 permeance of PEBA1657 composite membranes decreases dramatically with temperature increasing due to the reduction of SO2 solubility. By analyzing the difference of transport characteristics between PEI/PEBA1657 and PEI/PDMS/PEBA1657/PDMS composite membranes, PEI/PEBA1657 composite membranes with high SO2/N-2 selectivity are preferred for SO2/N-2 separation; while the multilayer PEI/PDMS/PEBA1657/PDMS composite membranes, displaying high permeances for CO2 and H2S, are suitable for CO2/N-2 and H2S/N-2 separation. (C) 2012 Elsevier B.V. All rights reserved.
关键词[WOS]: SEGMENTED BLOCK-COPOLYMERS ;  HOLLOW-FIBER MEMBRANES ;  CO2 SEPARATION ;  FACILITATED TRANSPORT ;  POLY(ETHYLENE OXIDE) ;  HYDROGEN-SULFIDE ;  LIQUID-MEMBRANES ;  CARBON-DIOXIDE ;  PERMEATION ;  CAPTURE
语种: 英语
WOS记录号: WOS:000302832800001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142948
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Res Ctr Membrane Technol, Dalian 116023, Peoples R China

Recommended Citation:
Ren, Xiaoling,Ren, Jizhong,Deng, Maicun. Poly(amide-6-b-ethylene oxide) membranes for sour gas separation[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2012,89:1-8.
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