Facilitated transport of CO2 through polyvinylamine/polyethlene glycol blend membranes

Chunhai Yi; Zhi Wang; Meng Li; Jixiao Wang; Shichang Wang

doi:10.1016/j.desal.2005.04.139

Facilitated transport of CO₂ through polyvinylamine/polyethlene glycol blend membranes

Chunhai Yi
, Zhi Wang
, Meng Li
, Jixiao Wang
, Shichang Wang

State Key Laboratory of Chemical Engineering

科研成果: 期刊稿件 › 文章 › 同行评审

105 引用（Scopus）

摘要

Poly(vinylamine)/poly(ethylene glycol) blend membranes were prepared. The effects of blend polymer composition on the membrane structure and CO₂/CH₄ separation performance were investigated. The results show that membrane crystallinity are at a minimum against poly(ethylene glycol)(PEG) content, while the permeation rates of CO₂ and CH₄ are the maximum. The blend membrane with 10 wt% PEG has the highest pure CO₂ permeation rate of 5.8×10^-6 cm³ (STP)/cm².s.cm Hg and the highest selectivity of 63.1 at 25°C and 96 cm Hg of feed pressure. The effects of cross-linking and the coupling effects between CO₂ and CH₄ were also investigated. The selectivity increased remarkably when the membrane is cross-linked. For mixed gas of constant CH₄ partial pressure and changing CO₂ partial pressure, the CH₄ permeation rate increased with an increase of CO₂ partial pressure due to the coupling effects.

源语言	英语
页（从-至）	90-96
页数	7
期刊	Desalination
卷	193
期	1-3
DOI	https://doi.org/10.1016/j.desal.2005.04.139
出版状态	已出版 - 10 5月 2006
已对外发布	是

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title = "Facilitated transport of CO2 through polyvinylamine/polyethlene glycol blend membranes",

abstract = "Poly(vinylamine)/poly(ethylene glycol) blend membranes were prepared. The effects of blend polymer composition on the membrane structure and CO2/CH4 separation performance were investigated. The results show that membrane crystallinity are at a minimum against poly(ethylene glycol)(PEG) content, while the permeation rates of CO2 and CH4 are the maximum. The blend membrane with 10 wt\% PEG has the highest pure CO2 permeation rate of 5.8×10-6 cm3 (STP)/cm2.s.cm Hg and the highest selectivity of 63.1 at 25°C and 96 cm Hg of feed pressure. The effects of cross-linking and the coupling effects between CO2 and CH4 were also investigated. The selectivity increased remarkably when the membrane is cross-linked. For mixed gas of constant CH4 partial pressure and changing CO2 partial pressure, the CH4 permeation rate increased with an increase of CO2 partial pressure due to the coupling effects.",

keywords = "Blend membrane, CH, CO, Fixed carrier, Gas permeation",

author = "Chunhai Yi and Zhi Wang and Meng Li and Jixiao Wang and Shichang Wang",

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T1 - Facilitated transport of CO2 through polyvinylamine/polyethlene glycol blend membranes

AU - Yi, Chunhai

AU - Wang, Zhi

AU - Li, Meng

AU - Wang, Jixiao

AU - Wang, Shichang

PY - 2006/5/10

Y1 - 2006/5/10

N2 - Poly(vinylamine)/poly(ethylene glycol) blend membranes were prepared. The effects of blend polymer composition on the membrane structure and CO2/CH4 separation performance were investigated. The results show that membrane crystallinity are at a minimum against poly(ethylene glycol)(PEG) content, while the permeation rates of CO2 and CH4 are the maximum. The blend membrane with 10 wt% PEG has the highest pure CO2 permeation rate of 5.8×10-6 cm3 (STP)/cm2.s.cm Hg and the highest selectivity of 63.1 at 25°C and 96 cm Hg of feed pressure. The effects of cross-linking and the coupling effects between CO2 and CH4 were also investigated. The selectivity increased remarkably when the membrane is cross-linked. For mixed gas of constant CH4 partial pressure and changing CO2 partial pressure, the CH4 permeation rate increased with an increase of CO2 partial pressure due to the coupling effects.

AB - Poly(vinylamine)/poly(ethylene glycol) blend membranes were prepared. The effects of blend polymer composition on the membrane structure and CO2/CH4 separation performance were investigated. The results show that membrane crystallinity are at a minimum against poly(ethylene glycol)(PEG) content, while the permeation rates of CO2 and CH4 are the maximum. The blend membrane with 10 wt% PEG has the highest pure CO2 permeation rate of 5.8×10-6 cm3 (STP)/cm2.s.cm Hg and the highest selectivity of 63.1 at 25°C and 96 cm Hg of feed pressure. The effects of cross-linking and the coupling effects between CO2 and CH4 were also investigated. The selectivity increased remarkably when the membrane is cross-linked. For mixed gas of constant CH4 partial pressure and changing CO2 partial pressure, the CH4 permeation rate increased with an increase of CO2 partial pressure due to the coupling effects.

KW - Blend membrane

KW - CH

KW - CO

KW - Fixed carrier

KW - Gas permeation

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DO - 10.1016/j.desal.2005.04.139

M3 - 文章

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SN - 0011-9164

VL - 193

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Facilitated transport of CO2 through polyvinylamine/polyethlene glycol blend membranes

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Facilitated transport of CO₂ through polyvinylamine/polyethlene glycol blend membranes