Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Phosphorus or compound containing same
Reexamination Certificate
2011-07-19
2011-07-19
Griffin, Walter D (Department: 1774)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Phosphorus or compound containing same
C502S208000, C502S211000, C502S213000, C208S21600R, C208S217000
Reexamination Certificate
active
07981828
ABSTRACT:
The invention is about a catalyst comprising at least one support, at least one group VIII element, at least one group VIB element and phosphorus, in which the density of group VIB elements per unit surface area of the support is in the range (limits included) 2×10−4to 18×10−4of oxides of group VIB elements per m2of support, in which the molar ratio of phosphorus to the group VIB element is in the range 0.27 to 2.00, and in which the amount of group VIB elements is in the range (limits included) 1% to 20% by weight of oxides of group VIB elements and in which the support has a specific surface area of less than 135 m2/g. The invention is also about a process for hydrodesulphurizing gasoline cuts containing sulphur and olefins in the presence of this catalyst.
REFERENCES:
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Partial Preliminary Search Report issued in FR 0607057 dated Feb. 22, 2007.
Bouchy Christophe
Devers Elodie
Marchal-George Nathalie
Picard Florent
Griffin Walter D
IFP Energies Nouvelles
Millen White Zelano & Branigan P.C.
Robinson Renee
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