Mineral oils: processes and products – Refining – Sulfur removal
Reexamination Certificate
2008-03-25
2008-03-25
Caldarola, Glenn (Department: 1764)
Mineral oils: processes and products
Refining
Sulfur removal
C208S217000, C208S21600R, C502S180000, C502S185000, C502S222000, C502S223000, C502S216000, C502S182000
Reexamination Certificate
active
10765840
ABSTRACT:
The invention relates to a catalyst for the selective hydrodesulfurization of hydrocarbon-containing feedstocks that comprise sulfur-containing compounds and olefins. This catalyst comes in a sulfurized form and comprises a substrate that is selected from among the refractory oxides, at least one metal that is selected from the group that consists of the metals of groups VI and VII of the periodic table and carbon, whereby the carbon content is less than or equal to 2.8% by weight. The invention also relates to a method for the production of the catalyst that is described above, as well as a process that uses this catalyst for the selective hydrodesulfurization of hydrocarbon-containing feedstocks that contain sulfur-containing compounds and olefins.
REFERENCES:
patent: 5451389 (1995-09-01), Sherif
patent: 5922638 (1999-07-01), Dufresne et al.
patent: 6372125 (2002-04-01), Manoli et al.
patent: 0541994 (1993-05-01), None
patent: 0745660 (1996-12-01), None
Bouchy Christophe
Marchal-George Nathalie
Picard Florent
Uzio Denis
Caldarola Glenn
Douglas John
Institut Francais du Pe'trole
Millen White Zelano & Branigan P.C.
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