Abstract
The Integrated coal Gasification Combined Cycle (IGCC) power generation system is expected as a clean coal utilization technology in next generation, so some projects if IGCC system have been organized in Europe and USA. In Japan, the experimental researches with the 2T/D test-scale gasifier and the 200T/D pilot-scale gasifier have been completed, and a project of demonstrative IGCC plant will be started in the near future. In this paper, a numerical simulation of the 200T/D pilot-scale coal gasifier is carried out. To feed-back the results of numerical simulation into the design and operation of the coal gasifier, it is important to develop some method which specifies the phenomena in the coal gasifier. This paper presents a new procedure which can be estimated the trap-rate of the ash particles in combustor with the results of numerical simulation. The influence of the change in the burner arrangement and/or shape of gasifier on the trap-rate of the ash particles is estimated by this procedure.
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