期刊
FUEL PROCESSING TECHNOLOGY
卷 79, 期 1, 页码 51-62出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-3820(02)00101-7
关键词
coal liquefaction; bottom recycle; carbon-supported catalyst
Bottom recycling liquefaction of an Indonesian sub-bituminous Tanito Harum coal was performed to maximize the oil yield and catalyst utilization using FeNi and FeMoNi catalysts supported on carbon nanoparticles for single- and two-stage processes. Two procedures of bottom recycle were carried out: the first procedure (procedure 1) was to recycle crude liquid bottom without additional fresh catalyst, while the second procedure (procedure 2) was to make up recycling feed by purging a part of the bottom and adding fresh catalyst. At the same amount of the total catalyst, the second procedure was found to provide more oil yield than the first procedure, suggesting that the catalyst should be deactivated. High recycle ratio provided excellent oil yield over 74% with successful reduction of catalyst amount to 1 wt.% d.a.f. coal base. Two-stage liquefaction with bottom recycle gave oil yield as high as 82% with a half amount of the fresh catalyst required for the liquefaction without bottom recycle. Higher catalytic activity of FeMoNi/Ketjen Black (KB) provided the higher oil yield with less amount catalyst at smaller catalyst recycle ratio compared to FeNi/KB catalyst. (C) 2002 Published by Elsevier Science B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据