C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/131, 196/87
C10G 65/12 (2006.01) B01J 23/85 (2006.01) B01J 35/10 (2006.01) C10G 49/02 (2006.01) C10G 65/02 (2006.01)
Patent
CA 1182769
ABSTRACT OF THE DISCLOSURE Heavy hydrocarbon feedstocks are hydroprocessed using a synergistic two-stage catalyst combination. The first stage catalyst comprises at least one group VIb or group VIII metal, metal oxide, or metal sulfide on a porous support and has an average pore diameter of 60-150 .ANG.. The second stage catalyst comprises at least one group VIb or VIII metal, metal oxide, or metal sulfide on a porous catalyst support and has an average pore diameter of 30-70 .ANG.. Preferably the first stage catalyst has at least 40% pore volume present as pores having diameters greater than 80 .ANG. and the second porous catalyst has at least 50% pore volume present as pores having diameters smaller than 80 .ANG..
370431
Bradrick Susan
Tolberg Ronald S.
Chevron Research And Technology Company
Smart & Biggar
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