发明名称 |
PROCESS FOR CATALYTIC DEWAXING OF REFINERY DERIVED LUBRICATING BASE OIL PRECURSOR |
摘要 |
<p>A process for catalytic dewaxing of more than one refinery-derived lubricating base oil precursor which comprises contacting in a first reaction zone in the presence of a hydrogen-containing gas at hydrodewaxing conditions a first feed stream comprising a first refinery-derived raffinate lubricating base oil precursor which contains a first wax comprising straight-chain paraffins with a first hydrodewaxing catalyst selective for conversion of said first wax and contacting in the presence of a hydrogen-containing gas at hydrodewaxing conditions in a parallel-situated second reaction zone a second refinery-derived raffinate lubricating base oil precursor which contains a second wax containing branched and/or cyclic hydrocarbons with a second hydrodewaxing catalyst selective for conversion of said second wax, and optionally contacting in one or more further reaction zones further refinery-derived waxy raffinate lubricating base oil precursor feed streams in the presence of a hydrogen-containing gas at hydrodewaxing conditions with a hydrodewaxing catalyst, and removing at least two parallel effluent streams of refinery dewaxed lubricating base oils from said reaction zones.</p> |
申请公布号 |
IN168775(B) |
申请公布日期 |
1991.06.01 |
申请号 |
IN1986MA90619 |
申请日期 |
1986.11.25 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
STEPHEN CHARLES STEM;BRUCE HERMAN CHARLES WINQUIST;JAMES RAMSAY BOWEN |
分类号 |
B01J29/00;C10G45/58;C10G65/00;C10G65/04;C10G65/16;C10G67/00;C10G73/02;(IPC1-7):C10G73/44 |
主分类号 |
B01J29/00 |
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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