Method for jointly producing propylene and petrol from a...

Details Method for jointly producing propylene and petrol from a... Method for jointly producing propylene and petrol from a...

2008-05-20

2008-05-20

Griffin, Walter D. (Department: 1797)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

C208S061000, C208S071000, C208S081000, C208S085000, C208S118000, C208S119000, C585S310000, C585S330000, C585S502000, C585S648000, C585S649000, C585S653000

Reexamination Certificate

active

07374662

ABSTRACT:
A process for conversion of a hydrocarbon feedstock comprising a relatively heavy main feedstock with a boiling point above approximately 350° C., and a relatively light secondary feedstock with a boiling point below approximately 320° C., wherein,the main feedstock, representing at least 50 wt. % of the hydrocarbon feedstock, is cracked in a fluidized-bed reactor in the presence of a cracking catalyst,the secondary feedstock is cracked in a fluidized bed with the same cracking catalyst, separately or mixed with the main feedstock, said secondary feedstock comprising oligomers with at least 8 carbon atoms of light olefins with 4 and/or 5 carbon atoms.

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