Document Type and Number:
Japanese Patent JPH0435519
Kind Code:
B2
Abstract:
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 refractory porous support and has an average pore diameter of 60-150 ANGSTROM . The second stage catalyst comprises at least one Group VIb or VIII metal, metal oxide, or metal sulfide on a refractory porous catalyst support and has an average pore diameter of 30- 70 ANGSTROM and smaller than that of the first stage catalyst. Preferably the first stage catalyst has at least 40% pore volume present as pores having diameters greater than 80 ANGSTROM and the second stage catalyst has at least 50% pore volume present as pores having diameters smaller than 80 ANGSTROM .
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Inventors:
SUUZAN BURADORITSUKU
RONARUDO ESU TORUBAAGU
RONARUDO ESU TORUBAAGU
Application Number:
JP4226781A
Publication Date:
June 11, 1992
Filing Date:
March 23, 1981
Export Citation:
Assignee:
CHEVRON RES
International Classes:
C10G49/04; B01J23/85; B01J35/10; C10G49/02; C10G65/02; C10G65/12
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