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

School of Chemical Engineering and Technology

Zhejiang University

Research output: Contribution to journal › Article › peer-review

105 Scopus citations

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.

Original language	English
Pages (from-to)	90-96
Number of pages	7
Journal	Desalination
Volume	193
Issue number	1-3
DOIs	https://doi.org/10.1016/j.desal.2005.04.139
State	Published - 10 May 2006

Keywords

Blend membrane
CH
CO
Fixed carrier
Gas permeation

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10.1016/j.desal.2005.04.139

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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",

year = "2006",

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doi = "10.1016/j.desal.2005.04.139",

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}

TY - JOUR

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

UR - https://www.scopus.com/pages/publications/33746576903

U2 - 10.1016/j.desal.2005.04.139

DO - 10.1016/j.desal.2005.04.139

M3 - 文章

AN - SCOPUS:33746576903

SN - 0011-9164

VL - 193

SP - 90

EP - 96

JO - Desalination

JF - Desalination

IS - 1-3

ER -

Facilitated transport of CO₂ through polyvinylamine/polyethlene glycol blend membranes

Abstract

Keywords

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