发明名称 |
Method for producing feedstocks of high quality lube base oil from unconverted oil of fuels hydrocracker operating in recycle mode |
摘要 |
A process is disclosed for producing feedstocks for manufacturing high quality lube base oil utilizing unconverted oil, which is produced from a fuels hydrocracker unit. The first step of the process is the distillation of an atmospheric residue under vacuum in a first vacuum distillation unit to produce a vacuum gas oil. The vacuum gas oil is then hydrotreated in a first reaction unit to remove impurities and produce a treated vacuum gas oil. The treated vacuum gas oil is then subjected to hydrocracking in a second reaction unit to yield light hydrocarbons. The light hydrocarbons are then subjected to a series of fractional distillations to separate light oil products and an unconverted oil. All or a fraction of the unconverted oil is fed to a second vacuum distillation unit to produce feedstocks of high quality lube base oil and a remaining portion. The remaining portion and, optionally, a fraction of the unconverted oil is recycled from the second vacuum distillation unit to the second reaction unit.
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申请公布号 |
US5580442(A) |
申请公布日期 |
1996.12.03 |
申请号 |
US19940242758 |
申请日期 |
1994.05.13 |
申请人 |
YUKONG LIMITED |
发明人 |
KWON, SOOK-HYUNG;MIN, WHA-SIK;LEE, YUN-KIL |
分类号 |
C10G7/06;C10G7/00;C10G45/00;C10G45/04;C10G47/02;C10G65/12;C10G69/02;C10G69/10;(IPC1-7):C10G69/10 |
主分类号 |
C10G7/06 |
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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