Fcc catalyst for reducing the sulfur content in gasoline and...

B - Operations – Transporting – 01 – J

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B01J 21/16 (2006.01) B01J 21/04 (2006.01) B01J 21/10 (2006.01) B01J 23/00 (2006.01) B01J 23/06 (2006.01) B01J 23/10 (2006.01) B01J 29/06 (2006.01) B01J 29/08 (2006.01) C10G 11/05 (2006.01) C10G 29/06 (2006.01) B01J 37/00 (2006.01)

Patent

CA 2490908

Catalyst composition comprising 5-55 wt% metal-doped anionic clay, 10-50 wt% zeolite, 5-40 wt% matrix alumina, 0-~10 wt% silica, 0-10 wt% of other ingredients, and balance kaolin. In metal-doped anionic clays, the additive, i.e. the metal dopant, is distributed more homogeneously within the anionic clay than in impregnated anionic clays, without separate phases of additive being present. Hence, abrasion of this catalyst composition will result in microfines poorer in additive than the prior art composition. Furthermore, the catalyst composition according to the invention results in a higher reduction of sulfur in fuels such as gasoline and diesel than is the case in compositions comprising impregnated anionic clay.

L'invention concerne une composition catalytique comprenant de 5 à 55 % en poids d'argile anionique à dopage métallique, de 10 à 50 % en poids de zéolite, de 5 à 40 % en poids d'alumine matricielle, de 0 à 10 % en poids de silice, de 0 à 10 % en poids d'autres ingrédients, le reste étant du kaolin. Dans des argiles anioniques à dopage métallique, l'additif, c'est-à-dire le dopant métallique, est réparti de manière plus homogène dans l'argile anionique que dans les argiles anioniques imprégnées, sans présence de phases séparées d'additif. C'est pourquoi, l'abrasion de cette composition catalytique permet d'obtenir des microfines plus pauvre en additif que la composition de l'art antérieur. En outre, la composition catalytique décrite dans cette invention permet d'obtenir une réduction plus importante du soufre dans les combustibles, tels que l'essence et le diesel, que dans les compositions contenant de l'argile anionique imprégnée.

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