FCC stripping method

Details FCC stripping method FCC stripping method

1989-12-14

1991-05-14

Marcus, Michael S.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208113, 422143, 422144, C01G 3514, B01J 820

Patent

active

050153633

ABSTRACT:
This invention provides an improved method for stripping hydrocarbons from spent catalyst which has been used in effecting hydrocarbon conversion reactions prior to the regeneration of this catalyst by combustion of carbon deposits upon the catalyst. The invention is described in terms of its use in FCC processes, since such processes are the most common application of the invention. In order to better distribute stripping gas, which is normally steam, so that the gas contacts and passes through substantially all of the catalyst, distribution ports are added to the skirts of the stripper baffles which direct catalyst flow in a generally side-to-side manner as it moves downward through a stripping vessel. The ports are sized to vary penetration of the stripping gas into the stream catalyst that moves past the grids. Use of these ports increases the amount of hydrocarbons removed from the spent catalyst and/or decreases stripping gas requirements.

REFERENCES:
patent: 2460151 (1949-01-01), Sinclair
patent: 2472502 (1949-06-01), Tyson
patent: 2519150 (1950-08-01), Ostergaard
patent: 2617708 (1952-11-01), Peery
patent: 3250696 (1966-05-01), Schutte

Affiliated with

Also associated with

Rating

FCC stripping method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with FCC stripping method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FCC stripping method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1646395