No.33 CO_2と灰分の反応に着目した固体燃料の熱分解およびガス化プロセスの解明

抄録

The study aimed to examine the effect of CO_2 environments during pyrolysis of solid fuel on the gasification of its char by using thermobalance. The lignin which had high concentration of Na was pyrolyzed at heating rate of 1 K/s to 973 K under CO_2 and Ar, and these chars were gasified in air at 973 K. It was found that carbonate formed, and chemical form of Na significantly varied during pyrolysis under CO_2. The change of chemical form of Na inhibited gasification reaction.