Process for preparation of a zeolite beta catalyst composition

Details Process for preparation of a zeolite beta catalyst composition Process for preparation of a zeolite beta catalyst composition

B - Operations, Transporting

01

J

196/103, 252/14

B01J 29/06 (2006.01) B01J 29/80 (2006.01) B01J 37/00 (2006.01) C10G 47/16 (2006.01) B01J 29/08 (2006.01) B01J 29/70 (2006.01)

Patent

CA 2280911

The present invention provides a process for the preparation of a catalyst composition which comprises, as first cracking component, a zeolite beta with a silica to alumina molar ratio of at least 20 comprising crystals less than 100 nm in size, and a second cracking component selected from (i) crystalline molecular sieves having pores with diameters greater than 0.6 nm, and (ii) clays, the process comprising the steps of: (i) preparing a mixture comprising the first cracking component and the second cracking component, the first cracking component being in the form of a sol; (ii) extruding the mixture into catalyst extrudates; and (iii) calcining the extrudates.

La présente invention concerne un procédé pour la préparation d'une composition de catalyseur. Cette dernière comprend, comme premier composant de craquage, un zéolite béta avec un rapport molaire silice/alumine d'au moins 20, comprenant des cristaux dont la taille est inférieure à 100 nm. Elle comprend également un deuxième composant de craquage sélectionné parmi (i) des tamis moléculaires cristallins présentant des pores dont les diamètres sont supérieurs à 0,6 nm, et (ii) des argiles. Le procédé comprend les étapes consistant à (i) préparer un mélange comprenant le premier composant de craquage et le deuxième composant de craquage, le premier composant de craquage ayant la forme d'un sol, (ii) extruder le mélange pour le transformer en extrudats de catalyseurs et (iii) griller les extrudats.

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