Coal gasification for IGCC power generation, IEACR/37

Author(s): Toshi''ichi Takematsu, Chris Maude

Ref: IEACR/37
ISBN: 92-9029-190-7
Published Date: 01/03/1991
No. of Tables: 37
No. of Figures: 44
No. of Pages: 80


Concern for environmental issues has generated increasing interest in new technologies for coal utilisation which offer increased efficiency with reduced emissions. Coal gasification is a well established technology for the production of pipeline gas or synthesis gas for chemicals production. In both cases, attention has been given to processing of the raw gas to remove particulates, sulphur compounds and other impurities. Efforts have been made to take advantage of these proven commercial scale systems and to adapt them to coal conversion for electric power generation. This report reviews the various gasification processes that have been developed and makes an assessment of their readiness for application in utility service. A simplified technique for comparative analysis of different schemes is presented, which introduces the concept of heat by-pass. Attention is drawn to various facets of the process where additional development could be expected to result in increased plant efficiency, with particular emphasis on hot gas cleaning. A brief survey shows that more than twenty countries have active programmes aimed at furthering development of IGCC applications, including several with plans for full-scale demonstration plants.

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