Abstract

A two-stage pressurized fluidized bed coal char gasification process has been developed. This process is one of the activities conducted under the Sunshine Project to provide coal conversion technology. A partition disc was used to divide the fluidized bed into two stages, the first used as a combuster and the second as a gasifier. Coal char in the ash and sand bed was gasified by air and steam to produce low-heating value gases. Experimental data on carbon efficiency, exit gas composition, particle size distribution, etc. are reported in the present paper.

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