Hydrofining catalyst and hydrofining process

Details Hydrofining catalyst and hydrofining process Hydrofining catalyst and hydrofining process

2005-02-22

2005-02-22

Griffin, Walter D. (Department: 1764)

Mineral oils: processes and products

Refining

Sulfur removal

C208S21600R, C208S217000, C208S25100H, C208S25400R, C502S305000, C502S319000, C502S320000, C502S321000, C502S322000, C502S323000, C502S325000, C502S332000, C502S333000, C502S334000, C502S335000, C502S336000, C502S337000, C502S338000, C502S339000, C502S355000, C422S198000, C422S198000, C422S198000

Reexamination Certificate

active

06858132

ABSTRACT:
A heavy oil hydrorefining catalyst of the present invention is such that the total volume of pores with a diameter of 60 nm or less is at least 0.5 mL/g, and the pore diameter distribution has a broad band over a pore diameter range of 8 to 30 nm. The hydrorefining catalyst has excellent desulfurization characteristics and excellent demetalization characteristics, and its performance can be maintained over an extended period. When this catalyst is used in a hydrorefining apparatus equipped with a plurality of catalyst layers, the apparatus can be operated stably at a higher temperature than in the past without decreasing the desulfurization performance, and this also enhances the demetalization characteristics.

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