发明名称 |
Process for separating bituminous materials with solvent recovery |
摘要 |
A process for separating a solvent from a bituminous material by pressure reduction without carry-over of bituminous material. The fluid-like phase comprising bituminous material and solvent is reduced in pressure by passage through a pressure reduction valve and introduced into a steam stripper. The pressure reduction vaporizes part of the solvent and also disperses a mist of fine bituminous particles in the solvent. The solvent and mist are withdrawn from the steam stripper and introduced into a separation zone wherein they are caused to flow countercurrently to another stream of fluid-like bituminous material. The fluid-like bituminous material contacts the solvent and scrubs the fine bituminous material particles therefrom. The solvent is withdrawn and recovered. The fluid-like stream containing the bituminous particles can be recycled until the concentration is such that additional particles are not separated from the solvent after which a portion is bled off and fresh fluid-like material is added.
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申请公布号 |
US4278529(A) |
申请公布日期 |
1981.07.14 |
申请号 |
US19800164591 |
申请日期 |
1980.06.30 |
申请人 |
KERR-MCGEE REFINING CORPORATION |
发明人 |
GEARHART, JUNIOR A. |
分类号 |
C10G21/28;C10C3/08;C10G1/04;(IPC1-7):C10C3/00 |
主分类号 |
C10G21/28 |
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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