Catalytic cracking process

Details Catalytic cracking process Catalytic cracking process

C - Chemistry, Metallurgy

10

G

C10G 11/05 (2006.01) B01J 29/00 (2006.01) B01J 29/08 (2006.01) B01J 29/40 (2006.01) B01J 29/80 (2006.01)

Patent

CA 2281534

A process for catalytic cracking of a hydrocarbon feedstock feeds to produce an enhanced yield of C3 to C5 olefins comprises contacting the feedstock with a catalyst composition comprising a large pore molecular sieve having a pore size greater than about 7 Angstrom and an additive component comprising a phosphorous-containing zeolite having a Constraint Index of about 1 to about 12 and a crystal size less than 0.2 micron.

L'invention porte sur procédé de craquage catalytique d'un hydrocarbure brut améliorant le rendement en oléfines C3 à C5 et consistant à mettre l'hydrocarbure en contact avec une composition catalytique comprenant un tamis moléculaire à larges pores d'une taille supérieure à environ 7 ANGSTROM , et un additif de zéolite phosphorée présentant un indice de contrainte d'environ 1 à environ 12, et une taille des cristaux inférieure à 0,2 mu .

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