Optimizing membranes structures for CO2 separations

Victor A. Kusuma; Grant Offord; Benny D. Freeman

Optimizing membranes structures for CO₂ separations

Victor A. Kusuma, Grant Offord, Benny D. Freeman

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

Abstract

Polymers containing ethylene oxide units have attracted significant scientific interest since ether oxygen linkages lead to flexible polymer chains and specific interactions with metal ions, polar molecules such as H₂O and H₂S, and quadrupolar molecules such as CO₂. This presentation discusses research to design rubbery membrane materials for the removal of acid gases such as CO₂ and H₂S from natural gas (mainly CH₄) using highly branched, crosslinked poly(ethylene oxide) (PEO)-based hydrogels. Unlike conventional size-sieving membrane materials, which achieve high permeability selectivity mainly via high diffusivity selectivity, these polar rubbery membrane materials exhibit high CO₂ permeability, high CO₂/CH₄ mixed-gas selectivity, and excellent stability to contaminants in natural gas due to high gas diffusivity and high CO₂/CH₄ solubility selectivity. Their performance is also of interest for hydrogen purification, and CO₂/H₂ separation data are presented to complement the CO₂/CH₄ data.

Original language	English
Title of host publication	American Chemical Society - 235th National Meeting, Abstracts of Scientific Papers
Publisher	American Chemical Society
ISBN (Print)	9780841269859
Publication status	Published - 2008
Externally published	Yes
Event	National Meeting of the American Chemical Society 2008 - New Orleans, United States of America Duration: 6 Apr 2008 → 10 Apr 2008 Conference number: 235th

Publication series

Name	ACS National Meeting Book of Abstracts
ISSN (Print)	0065-7727

Conference

Conference	National Meeting of the American Chemical Society 2008
Abbreviated title	ACS 2008
Country/Territory	United States of America
City	New Orleans
Period	6/04/08 → 10/04/08

Cite this

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title = "Optimizing membranes structures for CO2 separations",

abstract = "Polymers containing ethylene oxide units have attracted significant scientific interest since ether oxygen linkages lead to flexible polymer chains and specific interactions with metal ions, polar molecules such as H2O and H2S, and quadrupolar molecules such as CO2. This presentation discusses research to design rubbery membrane materials for the removal of acid gases such as CO2 and H2S from natural gas (mainly CH4) using highly branched, crosslinked poly(ethylene oxide) (PEO)-based hydrogels. Unlike conventional size-sieving membrane materials, which achieve high permeability selectivity mainly via high diffusivity selectivity, these polar rubbery membrane materials exhibit high CO2 permeability, high CO2/CH4 mixed-gas selectivity, and excellent stability to contaminants in natural gas due to high gas diffusivity and high CO2/CH4 solubility selectivity. Their performance is also of interest for hydrogen purification, and CO2/H2 separation data are presented to complement the CO2/CH4 data.",

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T1 - Optimizing membranes structures for CO2 separations

AU - Kusuma, Victor A.

AU - Offord, Grant

AU - Freeman, Benny D.

N1 - Conference code: 235th

PY - 2008

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N2 - Polymers containing ethylene oxide units have attracted significant scientific interest since ether oxygen linkages lead to flexible polymer chains and specific interactions with metal ions, polar molecules such as H2O and H2S, and quadrupolar molecules such as CO2. This presentation discusses research to design rubbery membrane materials for the removal of acid gases such as CO2 and H2S from natural gas (mainly CH4) using highly branched, crosslinked poly(ethylene oxide) (PEO)-based hydrogels. Unlike conventional size-sieving membrane materials, which achieve high permeability selectivity mainly via high diffusivity selectivity, these polar rubbery membrane materials exhibit high CO2 permeability, high CO2/CH4 mixed-gas selectivity, and excellent stability to contaminants in natural gas due to high gas diffusivity and high CO2/CH4 solubility selectivity. Their performance is also of interest for hydrogen purification, and CO2/H2 separation data are presented to complement the CO2/CH4 data.

AB - Polymers containing ethylene oxide units have attracted significant scientific interest since ether oxygen linkages lead to flexible polymer chains and specific interactions with metal ions, polar molecules such as H2O and H2S, and quadrupolar molecules such as CO2. This presentation discusses research to design rubbery membrane materials for the removal of acid gases such as CO2 and H2S from natural gas (mainly CH4) using highly branched, crosslinked poly(ethylene oxide) (PEO)-based hydrogels. Unlike conventional size-sieving membrane materials, which achieve high permeability selectivity mainly via high diffusivity selectivity, these polar rubbery membrane materials exhibit high CO2 permeability, high CO2/CH4 mixed-gas selectivity, and excellent stability to contaminants in natural gas due to high gas diffusivity and high CO2/CH4 solubility selectivity. Their performance is also of interest for hydrogen purification, and CO2/H2 separation data are presented to complement the CO2/CH4 data.

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T3 - ACS National Meeting Book of Abstracts

BT - American Chemical Society - 235th National Meeting, Abstracts of Scientific Papers

PB - American Chemical Society

T2 - National Meeting of the American Chemical Society 2008

Y2 - 6 April 2008 through 10 April 2008