Reactivation of spent chromia-alumina catalyst by zinc oxide dop

Details Reactivation of spent chromia-alumina catalyst by zinc oxide dop Reactivation of spent chromia-alumina catalyst by zinc oxide dop

1980-09-15

1982-01-26

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252411R, 252416, 252465, B01J 2120, B01J 2392

Patent

active

043127800

ABSTRACT:
A method for the reactivation of aged chromia-alumina dehydrogenation catalyst which involves doping the aged catalyst with minor amounts of zinc oxide, preferrably in the range of about 0.35% zinc oxide to 1.35% zinc oxide on the catalyst. The zinc oxide is added to the aged catalyst preferrably by impregnation by immersion or spraying of a zinc nitrate solution, followed by drying and heat treating. Alternatively the zinc oxide addition can be accomplished by use of a volatile organic zinc compound added to the saturated feedstock and subsequent air regeneration of the catalyst in situ without removal of the catalyst from the reactor.

REFERENCES:
patent: 2265641 (1941-12-01), Grosskinsky et al.
patent: 2375402 (1945-05-01), Corson et al.
patent: 2382394 (1945-08-01), Bremner et al.
patent: 2395875 (1946-03-01), Kearby
patent: 2901419 (1959-08-01), Brill

Affiliated with

Also associated with

Rating

Reactivation of spent chromia-alumina catalyst by zinc oxide dop does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reactivation of spent chromia-alumina catalyst by zinc oxide dop, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reactivation of spent chromia-alumina catalyst by zinc oxide dop will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1666174