发明名称 |
MULTI-STAGE HYDROCRACKER WITH KEROSENE RECYCLE |
摘要 |
This invention relates to a multi-stage process for hydroprocessing gas oils. Preferably, each stage possesses at least one hydrocracking zone. The second stage and any subsequent stages possess an environment having a low heteroatom content. Light products, such as naphtha, kerosene and diesel, may be recycled from fractionation (along with light products from other sources) to the second stage (or a subsequent stage) in order to produce a larger yield of lighter products, such as gas and naphtha. Subsequent zones are maintained at a lower pressure than that of the first zone, thereby reducing operating expenses.
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申请公布号 |
WO03104358(A1) |
申请公布日期 |
2003.12.18 |
申请号 |
WO2003US13816 |
申请日期 |
2003.05.02 |
申请人 |
CHEVRON U.S.A. INC. |
发明人 |
YOON, H., ALEX;PAREKH, JAY;DAHLBERG, ARTHUR, J. |
分类号 |
C10G65/10;C10G65/12;(IPC1-7):C10G65/02;C10G65/14;C10G65/18 |
主分类号 |
C10G65/10 |
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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