Combusting flue gas in a cracking catalyst regeneration process

Details Combusting flue gas in a cracking catalyst regeneration process Combusting flue gas in a cracking catalyst regeneration process

1975-05-09

1977-03-01

Levine, Herbert

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

252416, 252417, C10G 1118

Patent

active

040100944

ABSTRACT:
Flue gas containing CO.sub.2 and CO from a fluidized cracking unit catalyst regenerator is fed to a combustor in which CO combustion is completed. The CO combustion can be enhanced by injection of air or oxygen-containing gas into the combustor. The combustor may include CO combustion promoters such as oxidation-promoting catalyst grids, and may also include auxiliary fuel injection or other means to initiate or facilitate the combustion. The process of this invention further comprises indirect or direct recovery of the heat resulting from the combustion of CO in the flue gas by the cracking catalyst particles, which may be returned separately to the regenerator bed or transferred to the cracking reactor with or without fresh catalyst, or may be recycled to the CO combustor inlet or combined with other catalyst particles passing to the regenerator. In a preferred embodiment of this invention, combustion of CO in the flue gas occurs in two or more different stages to permit close catalyst temperature control and optional multiple use of the heat recovered by the catalyst particles.

REFERENCES:
patent: 2684931 (1954-07-01), Berg
patent: 2756121 (1956-07-01), Grimes
patent: 3012962 (1961-12-01), Dygert
patent: 3363993 (1968-01-01), Campbell
patent: 3808121 (1974-04-01), Wilson
patent: 3838036 (1974-09-01), Stine et al.
patent: 3909392 (1975-09-01), Horecky et al.

Affiliated with

Also associated with

Rating

Combusting flue gas in a cracking catalyst regeneration process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combusting flue gas in a cracking catalyst regeneration process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combusting flue gas in a cracking catalyst regeneration process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1351217