Gasoline sulfur reduction in fluid catalytic cracking

Details Gasoline sulfur reduction in fluid catalytic cracking Gasoline sulfur reduction in fluid catalytic cracking

2005-01-25

2005-01-25

Griffin, Walter D. (Department: 1764)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

C208S20800M, C208S244000, C208S245000, C208S247000, C208S248000, C208S249000, C208S120200, C208S120250, C208S120350, C208S120100

Reexamination Certificate

active

06846403

ABSTRACT:
The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a rare earth component which enhances the cracking activity of the cracking catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 4 of the Periodic Table, preferably vanadium. The rare earth component preferably includes cerium which enhances the sulfur reduction activity of the catalyst. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.

REFERENCES:
patent: 3442797 (1969-05-01), Aldridge
patent: 3494860 (1970-02-01), Aldridge
patent: 4432890 (1984-02-01), Beck et al.
patent: 4480047 (1984-10-01), Beck et al.
patent: 4561968 (1985-12-01), Beck et al.
patent: 4588702 (1986-05-01), Beck et al.
patent: 4615996 (1986-10-01), Occelli
patent: 4690806 (1987-09-01), Schorfheide
patent: 4790982 (1988-12-01), Yoo et al.
patent: 4794095 (1988-12-01), Walker et al.
patent: 4846960 (1989-07-01), Walker et al.
patent: 4880787 (1989-11-01), Bundens et al.
patent: 4944864 (1990-07-01), Kugler
patent: 4957718 (1990-09-01), Yoo et al.
patent: 4957892 (1990-09-01), Yoo et al.
patent: 4963520 (1990-10-01), Yoo et al.
patent: 4976847 (1990-12-01), Maxwell et al.
patent: 5001097 (1991-03-01), Pecoraro
patent: 5183559 (1993-02-01), Kirker et al.
patent: 5194413 (1993-03-01), Kumar
patent: 5248642 (1993-09-01), Kumar et al.
patent: 5260240 (1993-11-01), Guthrie et al.
patent: 5364516 (1994-11-01), Kumar et al.
patent: 5376608 (1994-12-01), Wormsbecher et al.
patent: 5401391 (1995-03-01), Collins et al.
patent: 5482617 (1996-01-01), Collins et al.
patent: 5525210 (1996-06-01), Wormsbecher et al.
patent: 5599441 (1997-02-01), Collins et al.
patent: 5601798 (1997-02-01), Cooper et al.
patent: 5646082 (1997-07-01), Tan-no et al.
patent: 5705142 (1998-01-01), Tan-no et al.
patent: 5705729 (1998-01-01), Huang
patent: 5919354 (1999-07-01), Bartek
patent: 5965474 (1999-10-01), Balko et al.
patent: 1117511 (1982-02-01), None
patent: 0 461 851 (1991-11-01), None
patent: 2 033 358 (1978-11-01), None
Intercat, Refining Developments, “Additives Improve FCC Process”, by A. S. Krishna, C. R. Hsieh, A. R. English, T. A. Pecoraro and C. W. Kuehler, Chevron Research and Technology Company, Richmond, California, no month.
Journal of Catalysis 100, 130-137 (1986), “Vanadium Poisoning of Cracking Catalysts: Mechanism of Poisoning and Design of Vanadium Tolerant Catalyst System” by Richard F. Wormsbecher, Alan W. Peters and James. M. Maselli, no month.

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