B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 29/06 (2006.01) B01J 29/40 (2006.01) B01J 31/02 (2006.01) B01J 37/00 (2006.01) B01J 37/08 (2006.01) C07C 2/66 (2006.01) C07C 2/86 (2006.01) C07C 6/12 (2006.01) C07C 15/08 (2006.01)
Patent
CA 2161875
In a process for modifying the shape selectivity of an aluminosilicate zeolite catalyst having a silica to alumina molar ratio less than 500, the catalyst is exposed to at least two ex situ selectivation sequences, wherein each ex situ selectivation sequence includes the steps of contacting the catalyst with a selectivating agent, normally an organosilicon compound, in a carrier and subsequently calcining the catalyst.
L'invention se rapporte à un procédé pour modifier la sélectivité de forme d'un catalyseur à la zéolite d'aluminosilicate ayant un rapport molaire silice/alumine inférieur à 500. Dans ce procédé, le catalyseur est exposé à au moins deux séquences de détermination de sélectivité ex situ, dont chacune consiste à mettre en contact le catalyseur avec un agent de détermination de sélectivité, généralement un composé d'organosilicium, dans un support, puis de calciner ledit catalyseur.
Beck Jeffrey Scott
Chang Clarence Dayton
Lutner John Dennis
Mccullen Sharon Brawner
Olson David Harold
Kirby Eades Gale Baker
Mobil Oil Corporation
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