Oxygen-selective membranes integrated with oxy-fuel combustion

Wei Chen; Chusheng Chen; Henricus J.M. Bouwmeester; Arian Nijmeijer; Aloysius J.A. Winnubst

doi:10.1016/j.memsci.2014.03.063

Oxygen-selective membranes integrated with oxy-fuel combustion

Wei Chen, Chusheng Chen, Henricus J.M. Bouwmeester, Arian Nijmeijer, Aloysius J.A. Winnubst

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Abstract

The perovskite-type oxide SrCo0.8Fe0.2O3 δ (SCF), a highly oxygen-permeable material, is restricted for application in the membrane-integrated oxy-fuel combustion process by its low tolerance to CO2. In the present work, we found that the CO2 tolerance of SCF is improved by increasing the oxygen partial pressure in the CO2-containing gas. Long term oxygen permeation experiments, at 950 1C, show that mixing 5% of oxygen into the CO2 sweep gas effectively prevents degradation of the SCF membrane. X-ray photoelectron spectroscopy indicates that the increase in CO2 tolerance of SCF is caused by a decrease in basicity of the material with increasing oxygen partial pressure. Based on these experimental results, a modified oxy-fuel combustion process is proposed. Calculation of the required membrane area for operating a 50 MW coal-ired power plant showed that the modified process comprises a viable option.

Original language	English
Pages (from-to)	166-172
Journal	Journal of membrane science
Volume	463
DOIs	https://doi.org/10.1016/j.memsci.2014.03.063
Publication status	Published - 2014

Keywords

METIS-309116
IR-94175

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10.1016/j.memsci.2014.03.063

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@article{2302cf69500a492e959160fa4004afa5,

title = "Oxygen-selective membranes integrated with oxy-fuel combustion",

abstract = "The perovskite-type oxide SrCo0.8Fe0.2O3 δ (SCF), a highly oxygen-permeable material, is restricted for application in the membrane-integrated oxy-fuel combustion process by its low tolerance to CO2. In the present work, we found that the CO2 tolerance of SCF is improved by increasing the oxygen partial pressure in the CO2-containing gas. Long term oxygen permeation experiments, at 950 1C, show that mixing 5% of oxygen into the CO2 sweep gas effectively prevents degradation of the SCF membrane. X-ray photoelectron spectroscopy indicates that the increase in CO2 tolerance of SCF is caused by a decrease in basicity of the material with increasing oxygen partial pressure. Based on these experimental results, a modified oxy-fuel combustion process is proposed. Calculation of the required membrane area for operating a 50 MW coal-ired power plant showed that the modified process comprises a viable option.",

keywords = "METIS-309116, IR-94175",

author = "Wei Chen and Chusheng Chen and Bouwmeester, {Henricus J.M.} and Arian Nijmeijer and Winnubst, {Aloysius J.A.}",

year = "2014",

doi = "10.1016/j.memsci.2014.03.063",

language = "English",

volume = "463",

pages = "166--172",

journal = "Journal of membrane science",

issn = "0376-7388",

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TY - JOUR

T1 - Oxygen-selective membranes integrated with oxy-fuel combustion

AU - Chen, Wei

AU - Chen, Chusheng

AU - Bouwmeester, Henricus J.M.

AU - Nijmeijer, Arian

AU - Winnubst, Aloysius J.A.

PY - 2014

Y1 - 2014

N2 - The perovskite-type oxide SrCo0.8Fe0.2O3 δ (SCF), a highly oxygen-permeable material, is restricted for application in the membrane-integrated oxy-fuel combustion process by its low tolerance to CO2. In the present work, we found that the CO2 tolerance of SCF is improved by increasing the oxygen partial pressure in the CO2-containing gas. Long term oxygen permeation experiments, at 950 1C, show that mixing 5% of oxygen into the CO2 sweep gas effectively prevents degradation of the SCF membrane. X-ray photoelectron spectroscopy indicates that the increase in CO2 tolerance of SCF is caused by a decrease in basicity of the material with increasing oxygen partial pressure. Based on these experimental results, a modified oxy-fuel combustion process is proposed. Calculation of the required membrane area for operating a 50 MW coal-ired power plant showed that the modified process comprises a viable option.

AB - The perovskite-type oxide SrCo0.8Fe0.2O3 δ (SCF), a highly oxygen-permeable material, is restricted for application in the membrane-integrated oxy-fuel combustion process by its low tolerance to CO2. In the present work, we found that the CO2 tolerance of SCF is improved by increasing the oxygen partial pressure in the CO2-containing gas. Long term oxygen permeation experiments, at 950 1C, show that mixing 5% of oxygen into the CO2 sweep gas effectively prevents degradation of the SCF membrane. X-ray photoelectron spectroscopy indicates that the increase in CO2 tolerance of SCF is caused by a decrease in basicity of the material with increasing oxygen partial pressure. Based on these experimental results, a modified oxy-fuel combustion process is proposed. Calculation of the required membrane area for operating a 50 MW coal-ired power plant showed that the modified process comprises a viable option.

KW - METIS-309116

KW - IR-94175

U2 - 10.1016/j.memsci.2014.03.063

DO - 10.1016/j.memsci.2014.03.063

M3 - Article

SN - 0376-7388

VL - 463

SP - 166

EP - 172

JO - Journal of membrane science

JF - Journal of membrane science

ER -

Oxygen-selective membranes integrated with oxy-fuel combustion

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Keywords

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