Process for desulphurizing olefinic gasolines to limit the...

Details Process for desulphurizing olefinic gasolines to limit the... Process for desulphurizing olefinic gasolines to limit the...

2006-07-17

2011-10-11

Griffin, Walter (Department: 1774)

Mineral oils: processes and products

Refining

Sulfur removal

C208S209000, C208S210000, C208S21600R, C208S217000

Reexamination Certificate

active

08034233

ABSTRACT:
The invention concerns a process for hydrodesulphurizing a gasoline containing less than 0.1% by weight of sulphur derived from a catalytic cracking unit or other conversion units, said process comprising at least one hydrodesulphurization reactor using a bimetallic catalyst operating at a HSV in the range 0.1 h−1to 20 h−1, a temperature in the range 220° C. to 350° C. and a pressure in the range 0.1 MPa to 5 MPa, and comprising recycling a fraction of the desulphurized gasoline to the inlet to the hydrodesulphurization reactor with a recycle ratio in the range 0.1 to 3 times the flow rate of the gasoline to be desulphurized.

REFERENCES:
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patent: 5968346 (1999-10-01), Jung et al.
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patent: 6126814 (2000-10-01), Lapinski et al.
patent: 6824673 (2004-11-01), Ellis et al.
patent: 2004/0226863 (2004-11-01), Uzio et al.
patent: 0745660 (1995-08-01), None
patent: 1 369 466 (2003-12-01), None

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