溶融石炭灰除去用高温フィルターの開発(〔熱工学, 内燃機関, 動力など〕)

概要

論文の詳細を見る
This paper proposes an innovative coal combustion/gasification furnace incorporating pebble bed filter for high temperature molten slag removal. The experimental demonstration of this high temperature filter is reported. Molten coal slag paricles generated by injecting fly ash of coal into high temperature natural gas fired combustion gas are successfully trapped and extracted from the filter, and 97.7% slag removal efficiency is demonstrated. Alumina pebbles receive significant attack from the reaction with the molten slag under the temperature around 1700℃, while this attack can be greatly suppressed by lowering the operating temperature of the filter below about 1600℃. A new coal gasification combined cycle power generation system employing the pebble bed coal gasifier is proposed, whose thermal efficiency is expected to reach as high as about 50%.
一般社団法人日本機械学会の論文
1997-12-25