Method of treating spontaneously combustible catalysts

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking

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20811135, C10G 4718

Patent

active

060933097

ABSTRACT:
Self-heating characteristics of a spontaneously combustible catalyst are reduced by treating spontaneously combustible catalysts with oxygen-containing hydrocarbons having at least 12 carbon atoms. The treatment is particularly suitable for reducing the self-heating characteristics of sulfidable metal oxide(s)-containing catalysts, presulfurized catalysts, presulfided catalysts or reduced catalysts. When applied to sulfur-containing catalysts, the treatment gives a catalyst that has suppressed self-heating properties without substantially compromising sulfur retention or activity. Further hydrocracking catalysts treated by the oxygen-containing hydrocarbons give improved product yield. Further, a method of safely unloading a catalyst from a reactor is provided where the catalyst in the reactor is treated with a liquid mixture containing oxygen-containing hydrocarbon having at least 12 carbon atoms to wet the catalyst.

REFERENCES:
patent: 3563912 (1971-02-01), Young
patent: 4089930 (1978-05-01), Kittrell et al.
patent: 4177136 (1979-12-01), Herrington et al.
patent: 4234462 (1980-11-01), Bondar et al.
patent: 4260524 (1981-04-01), Yamada et al.
patent: 4520128 (1985-05-01), Morales et al.
patent: 4530911 (1985-07-01), Ryan et al.
patent: 4530917 (1985-07-01), Berrebi
patent: 4794098 (1988-12-01), Pohl et al.
patent: 4808562 (1989-02-01), Kubersky et al.
patent: 4912071 (1990-03-01), Kaijima et al.
patent: 4943547 (1990-07-01), Seamans et al.
patent: 4999326 (1991-03-01), Sikkenga et al.
patent: 5032565 (1991-07-01), Berrebi
patent: 5041404 (1991-08-01), Seamans et al.
patent: 5093189 (1992-03-01), Jowett
patent: 5124301 (1992-06-01), Wyness et al.
patent: 5139983 (1992-08-01), Berrebi et al.
patent: 5153163 (1992-10-01), Roumieu et al.
patent: 5169819 (1992-12-01), Berrebi
patent: 5397756 (1995-03-01), Dufresne et al.

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