11.気流層石炭ガス化炉における飛散灰の焼結特性

抄録

Flying slag particles have a tendency to deposit themselves on walls of the gasifier's exit and on tube surfaces of the syngas cooler, then sinter in the course of entrained coal gasification. Sintering behavior was examined using water quenched slag and char obtained by the pilot plant of HYCOL. The sintering temperature of the slag was approximately 800℃. The presence of carbon in the slag hindered the progress of sintering. When the concentration of carbon in the slag was above 4%, the slag did not sinter at 900℃. SEM analysis showed that the carbon in the slag acted as a dispersant.