发明名称 |
Process for recovering oil from tar sands |
摘要 |
A process for recovering oil from tar sands by subjecting the tar sands to aqueous extraction to produce a bitumen-rich layer containing bitumen, water and solids and a bitumen-lean layer containing relatively less bitumen and relatively more water and solids. The solids present in the bitumen-lean layer contain a substantial portion of finely divided clay having adhered organic matter. The clay solids are retained with the bitumen from the bitumen-lean layer and the bitumen-clay mixture is pyrolyzed. Pyrolysis of the bitumen-lean layer containing clay having adhered organic matter reduces the volume of aqueous tailings which would otherwise be produced and also results in increased hydrocarbon yields.
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申请公布号 |
US5320746(A) |
申请公布日期 |
1994.06.14 |
申请号 |
US19900608130 |
申请日期 |
1990.11.01 |
申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
GREEN, ROBERT C.;STUNTZ, GORDON F.;KOVEAL, RUSSELL J. |
分类号 |
C10G1/00;C10G1/04;(IPC1-7):C10G1/04 |
主分类号 |
C10G1/00 |
代理机构 |
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代理人 |
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地址 |
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