Method of treating spontaneously combustible catalysts

Details Method of treating spontaneously combustible catalysts Method of treating spontaneously combustible catalysts

1997-07-18

1999-11-23

Wood, Elizabeth D

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Sulfur or compound containing same

502 28, 502 30, 502 31, 502 33, 502168, 502150, 502172, 502219, 502220, 502222, 502223, 208113, B01J 2702, B01J 27047, B01J 27043, B01J 27045

Patent

active

059900377

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, 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.

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