Composition for reducing O x emissions in FCC regeneration...

Details Composition for reducing O x emissions in FCC regeneration... Composition for reducing O x emissions in FCC regeneration...

2004-10-12

2009-08-18

Wood, Elizabeth D (Department: 1793)

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And additional al or si containing component

C502S060000, C502S064000, C502S065000, C502S079000, C208S113000, C208S118000, C208S119000, C208S120010, C208S120250, C208S121000, C208S122000

Reexamination Certificate

active

07576025

ABSTRACT:
A composition comprising FCC catalyst particles and additive particles suitable for the reduction of NOxemissions from a FCC regenerator, said additive particles comprising a Mg and Al-containing anionic clay or solid solution, a rare earth metal oxide, alumina and/or silica-alumina, and Y-type zeolite. The invention further relates to a process for preparing such a composition and its use for reducing NOxemissions.

REFERENCES:
patent: 4946581 (1990-08-01), van Broekhoven
patent: 6281164 (2001-08-01), Demmel et al.
patent: 6930067 (2005-08-01), O'Connor et al.
patent: 0 278 535 (1991-02-01), None
patent: WO 87/06156 (1987-10-01), None
patent: WO 01/12570 (2001-02-01), None
A. Corma, et al; “Optimization of SOx Additives of FCC Catalysts Based on MgO-AI2O3 Mixed Oxides Produced From Hydrotalcites”; Applied Catalysis B: Environmental; 1994; p. 29-43; vol. 4; Elsevier Science B.V.; Amsterdam, Netherlands.

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