Catalyst for light olefins and lpg in fluidized catalytic units

Details Catalyst for light olefins and lpg in fluidized catalytic units Catalyst for light olefins and lpg in fluidized catalytic units

B - Operations, Transporting

01

J

B01J 29/80 (2006.01) C10G 11/05 (2006.01)

Patent

CA 2586516

A catalyst composition comprising at least about 10% by weight pentasil, at least about 12% by weight Y-type zeolite at a pentasil to Y zeolite ratio of at least 0.25, and wherein the pentasil and Y zeolite comprise at least about thirty-five percent of the catalyst have been shown to optimize light olefin yields and LPG from FCC processes. Embodiments having matrix surface areas greater than 25m2/g, phosphorous and rare earth are preferred. The compositions of this invention are particularly useful in typical fluid catalytic cracking (FCC) processes.

L'invention concerne une composition de catalyseur contenant au moins environ 10 % en poids de pentasile, au moins environ 12 % en poids de zéolite de type Y à un rapport de pentasile/zéolite Y d'au moins 0,25, et dans laquelle le pentasile et la zéolite Y représentent environ au moins 35 % du catalyseur, dont on a démontré qu'elle optimise les rendements en oléfines légères et l'obtention de GPL à partir de processus de craquage catalytique fluidisé (FCC). Des modes de réalisation ayant des surfaces matricielles supérieures à 25m2/g, du phosphore et une terre rare sont préférés. Les compositions de cette invention sont particulièrement utiles dans des procédés classiques de craquage catalytique fluide (FCC).

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