主催: 社団法人 日本エネルギー学会
会議名: 第30回石炭科学会議
回次: 30
開催地: 東京
開催日: 1993/10/25 - 1993/10/26
p. 260-263
Hydrothermal treatment was applied to Victorian brown coal as pretreatment for liquefaction. This treatment removes inorganics (Na, Ca, etc.) and carboxylic groups in the coal which cause scale troubles during liquefaction. This paper discusses the scale formed during the operation of a 0.1t/d process development unit (PDU) and suppression of the scale formation by hydrothermal treatment.