发明授权
- 专利标题: Deasphalting process
- 专利标题(中): 脱沥青工艺
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申请号: US214602申请日: 1980-12-09
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公开(公告)号: US4324651A公开(公告)日: 1982-04-13
- 发明人: Louis D. Rollmann , Dennis E. Walsh
- 申请人: Louis D. Rollmann , Dennis E. Walsh
- 申请人地址: NY New York
- 专利权人: Mobil Oil Corporation
- 当前专利权人: Mobil Oil Corporation
- 当前专利权人地址: NY New York
- 主分类号: B01D11/04
- IPC分类号: B01D11/04 ; C10C3/08 ; C10G21/00 ; C10C3/00 ; C10G21/16
摘要:
An asphalt-containing mineral oil can be deasphalted at temperatures above about 80.degree. C. with methanol serving as the deasphalting solvent. Two liquid phases are produced, an asphalt-rich phase and a methanol-rich phase. By cooling the methanol-rich phase to a temperature below 80.degree. C., two additional liquid phases are produced, an oil-rich phase and a methanol-rich phase.
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