发明名称 |
Coal hydrogenation catalyst recycle |
摘要 |
In the hydrogenation of coal slurried in recycle oil in the presence of a suspended hydrogenation catalyst, a substantial proportion of the catalyst can be recovered for recycle to the process by using a catalyst which is significantly more finely divided than the ash particles from the coal, subjecting the hydrogenated slurry to a gravity concentration process whereby the coarser, ash particles are selectively concentrated in a lower layer and a relatively larger proportion of the finer catalyst particles remain suspended in the supernatant oil, and recycling at least a part of the supernatant oil containing suspended catalyst to the coal hydrogenation process.
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申请公布号 |
US4090943(A) |
申请公布日期 |
1978.05.23 |
申请号 |
US19770772873 |
申请日期 |
1977.02.28 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
MOLL, NORMAN G.;QUARDERER, GEORGE J. |
分类号 |
C10G1/06;C10G1/08;(IPC1-7):C10G1/08 |
主分类号 |
C10G1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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