Void grading

Details Void grading Void grading

1993-06-14

1994-11-29

Pal, Asok

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208146, 208216PP, 208254H, 502527, C10G 3504, C10G 4500

Patent

active

053687221

ABSTRACT:
Process for the hydrotreating of a hydrocarbon feedstock, wherein the feedstock is passed through a fixed bed catalyst system of a hydrotreating catalyst comprising a physical mixture of high void catalyst particles and low void catalyst particles, which particles are mixed in different amounts in different layers of the catalyst bed so as to obtain within the fixed bed catalyst system a layered structure with different layers having different mixing ratios of the high and low void particles.

REFERENCES:
patent: 3898180 (1975-08-01), Crooks et al.
patent: 4558028 (1985-12-01), Tsuneki et al.
patent: 4828683 (1989-05-01), Gardner et al.
patent: 4830736 (1989-05-01), Hung et al.
patent: 5017542 (1991-05-01), Martan et al.
patent: 5198579 (1993-03-01), Honda et al.
patent: 5206431 (1993-04-01), Hashiba et al.

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