Desulfurization process

Mineral oils: processes and products – Refining – With solid catalyst or absorbent

Reexamination Certificate

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C208S244000, C208S247000, C208S20800M, C502S053000, C502S406000

Reexamination Certificate

active

06869522

ABSTRACT:
In a desulfurization process for the removal of organosulfur compounds from a hydrocarbon fluid stream such as cracked-gasoline or diesel fuel wherein a bifunctional sorbent system is employed, surface treatment of the bifunctional sorbent during the use of same for desulfurization results in an extension of the useful life of the bifunctional sorbent prior to the regeneration and reactivation of same for further use in the desulfurization of the hydrocarbon fluid stream.

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patent: 6723229 (2004-04-01), Hantzer et al.
patent: 6723230 (2004-04-01), Chen et al.

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