发明名称 |
Process to prepare a base oil having a viscosity index of between 80 and 140 |
摘要 |
Process to prepare a base oil having a viscosity index of between 80 and 140 starting from a distillate or a de-asphalted oil by (a) contacting the feedstock in the presence of hydrogen with a sulphided hydrodesulphurization catalyst comprising nickel and tungsten on an acid amorphous silica-alumina carrier and (b) performing a pour point reducing step on the effluent of step (a) to obtain the base oil.
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申请公布号 |
US7641789(B2) |
申请公布日期 |
2010.01.05 |
申请号 |
US20050537974 |
申请日期 |
2005.06.09 |
申请人 |
SHELL OIL COMPANY |
发明人 |
MOUREAUX PATRICK;VAN VEEN JOHANNES ANTHONIUS ROBERT |
分类号 |
C10G67/04;C10G65/04 |
主分类号 |
C10G67/04 |
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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