CCC/187 ISBN 978-92-9029-507-5
September 2011
copyright © IEA Clean Coal Centre
Abstract
Worldwide, a small number of integrated gasification combined cycle power plants (IGCC), based on
high-efficiency coal gasification technologies, are operated commercially or semi-commercially, a few
more are under construction, and a number of demonstration projects, some including carbon capture
and sequestration (CCS), are at an advanced stage of planning. Various coal gasification technologies
are embodied in these plants including different coal feed systems (dry or slurry), fireproof interiors
walls (fire brick or water-cooled tubes), oxidants (oxygen or air), and other factors. Many of these
designs are now several decades old but new cycles and systems are emerging to further improve the
efficiency of the coal gasification process. This report draws upon the published literature and
commentary from experts in industry and academia working in the coal gasification sector to present
and summarise recent developments.
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