초록 ▼

Compositions which contain a titania component have been found which provide reduction of sulfar levels in the gasoline resulting from FCC processes (and other cracking processes conducted in the absence of added hydrogen) without the need for feedstock pretreatments nor added hydrogen. The composit

Compositions which contain a titania component have been found which provide reduction of sulfar levels in the gasoline resulting from FCC processes (and other cracking processes conducted in the absence of added hydrogen) without the need for feedstock pretreatments nor added hydrogen. The compositions preferably also contain an alumina supported Lewis acid component. These compositions are preferably used as particles in admixture with catalytic cracking catalyst particles in the circulating catalyst inventory.

대표청구항 ▼

[ What is claimed is:] [1.] A process for fluidized catalytic cracking a hydrocarbon feedstock comprising sulfur wherein (i) said feedstock is cracked in a cracking zone in the absence of added hydrogen, and (ii) an inventory of particles, including catalyst particles, is repeatedly circulated betwe

[ What is claimed is:] [1.] A process for fluidized catalytic cracking a hydrocarbon feedstock comprising sulfur wherein (i) said feedstock is cracked in a cracking zone in the absence of added hydrogen, and (ii) an inventory of particles, including catalyst particles, is repeatedly circulated between a hydrocarbon cracking zone and a catalyst regeneration zone, wherein said inventory comprises additional particles which: (a) have less activity for catalyzing the cracking of hydrocarbons compared to said catalyst particles, said activity being on a fresh particle basis, (b) consists essentially of titania and inorganic oxide other than titania, and (c) are independently fluidizable under the operating conditions of said process.