Ceramic membranes for gas processing in coal gasification

Smart, S., Lin, C. X. C., Ding, L., Thambimuthu, K. and Diniz da Costa, J. C. (2010) Ceramic membranes for gas processing in coal gasification. Energy and Environmental Science, 3 3: 268-278. doi:10.1039/b924327e

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Author Smart, S.
Lin, C. X. C.
Ding, L.
Thambimuthu, K.
Diniz da Costa, J. C.
Title Ceramic membranes for gas processing in coal gasification
Journal name Energy and Environmental Science   Check publisher's open access policy
ISSN 1754-5692
Publication date 2010-01-01
Sub-type Article (original research)
DOI 10.1039/b924327e
Open Access Status Not Open Access
Volume 3
Issue 3
Start page 268
End page 278
Total pages 11
Place of publication Cambridge, U.K.
Publisher Royal Society of Chemistry
Language eng
Subject 09 Engineering
Formatted abstract
Coal is the most abundant fossil fuel in the world and is likely to outlast gas and oil for centuries. However, with global issues like climate change at the forefront of public attention there is a trend towards the development of a carbon constrained economy. As a result, research has intensified in the last decade on modes of operating coal fired power plants with carbon capture and storage (CCS). In particular, pre-combustion options via coal gasification, especially integrated gasification combined cycle (IGCC) processes, are attracting the attention of governments, industry and the research community as an attractive alternative to conventional power generation. It is possible to build an IGCC plant with CCS with conventional technologies however; these processes are energy intensive and likely to reduce power plant efficiencies. Novel ceramic membrane technologies, in particular molecular sieving silica (MSS) and pervoskite membranes, offer the opportunity to reduce efficiency losses by separating gases at high temperatures and pressures. MSS membranes can be made preferentially selective for H2, enabling both enhanced production, via a water–gas shift membrane reactor, and recovery of H2 from the syngas stream at high temperatures. They also allow CO2 to be concentrated at high pressures, reducing the compression loads for transportation and enabling simple integration with CO2 storage or sequestration operations. Perovskite membranes provide a viable alternative to cryogenic distillation for air separation by delivering the tonnage of oxygen required for coal gasification at a reduced cost. In this review we examine ceramic membrane technologies for high temperature gas separation and discuss the operational, mechanical, design and process considerations necessary for their successful integration into IGCC with CCS systems.

Graphical abstract image for this article (ID: b924327e)
Keyword Carbon Dioxide
Carbon sequestration
Climate change
Coal-fired power plant
Cryogenic fluid
Fossil fuel
High pressure
Power generation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published under 'Review'. Issue title: Fuels of the Future

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
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Citation counts: TR Web of Science Citation Count  Cited 89 times in Thomson Reuters Web of Science Article | Citations
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Created: Sun, 21 Mar 2010, 10:07:53 EST