Naphtha desulfurization with selectively suppressed...

Details Naphtha desulfurization with selectively suppressed... Naphtha desulfurization with selectively suppressed...

2005-04-11

2009-08-18

Hailey, Patricia L (Department: 1793)

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Treating with a liquid or treating in a liquid phase,...

C502S054000, C502S305000, C502S313000

Reexamination Certificate

active

07576023

ABSTRACT:
Naphtha is selectively hydrodesulfurized in the presence of a sulfided, treated catalyst comprising at least a Group VIB metal catalytic component, to produce sulfur-reduced naphtha with reduced olefin loss due to saturation. The catalyst is treated with hydrogen, a selectively deactivating agent which deactivates its hydrogenation activity, and a protective agent which preserves its hydrodesulfurization activity during the treatment.

REFERENCES:
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patent: 4020119 (1977-04-01), Johnson et al.
patent: 4381993 (1983-05-01), Nevitt
patent: 6120679 (2000-09-01), Hatanaka et al.
patent: 6218333 (2001-04-01), Gabrielov et al.
patent: 6753291 (2004-06-01), Eijsbouts et al.

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