Low NO x FCC catalyst regeneration process

Details Low NO x FCC catalyst regeneration process Low NO x FCC catalyst regeneration process

2011-03-29

2011-03-29

Caldarola, Glenn (Department: 1771)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

Reexamination Certificate

active

07914666

ABSTRACT:
An FCC process producing lower NOx emissions during regeneration by using excess oxygen levels at less than or equal to about 0.5 mol-% and a plenum temperature above about 730° C. (about 1350° F.). The process may further include limiting the Pt content in the catalyst to less than or equal to about 0.5 ppm. NOxemissions, NO to NO2, produced through this process may be equal to or less than 25 ppmv. The process may also include adjusting the metal content of the feedstock for such metals as antimony, nickel, or vanadium. Additional variables for reducing NOxemissions that may be used in conjunction with this process may include increasing the flue gas residence time, injecting NH3into the flue gas, adding or using NOx-reducing catalysts, increasing stripping of the catalyst, and increasing the catalyst zeolite to matrix ratio.

REFERENCES:
patent: 3245920 (1966-04-01), Keith et al.
patent: 4778665 (1988-10-01), Krishnamurthy et al.
patent: 4784752 (1988-11-01), Ramamoorthy et al.
patent: 4812430 (1989-03-01), Child
patent: 4851374 (1989-07-01), Yan et al.
patent: 4986897 (1991-01-01), Chin

Affiliated with

Also associated with

Rating

Low NO x FCC 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 Low NO x FCC catalyst regeneration process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low NO x FCC catalyst regeneration process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2762323