| 发明名称 |
POLARITY GRADIENT EXTRACTION METHOD |
| 摘要 |
<p>F-0574(0698) POLARITY GRADIENT EXTRACTION METHOD An improved method for deasphalting a hydrocarbon feedstock comprises the use of at least two solvents in an extraction column to establish a liquid polarity gradient within it. The hydrocarbon feedstock may be heavy oil, residua, or tar sands.</p> |
| 申请公布号 |
CA1160976(A) |
申请公布日期 |
1984.01.24 |
| 申请号 |
CA19810391488 |
申请日期 |
1981.12.04 |
| 申请人 |
MOBIL OIL LIMITED |
发明人 |
SHIH, STUART S.;TABAK, SAMUEL A.;ANGEVINE, PHILIP J.;CARROLL, MICHAEL B. |
| 分类号 |
B01D11/02;C10G1/04;(IPC1-7):C10C3/00 |
主分类号 |
B01D11/02 |
| 代理机构 |
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| 地址 |
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