Over alkylation and catalytic cracking for benzene conversion

Details Over alkylation and catalytic cracking for benzene conversion Over alkylation and catalytic cracking for benzene conversion

1993-08-31

1995-01-10

Pal, Asok

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 79, 208138, 585316, 585446, 585467, 585471, C10G 5700, C10G 6102, C10G 6304, C07C 268

Patent

active

053804252

ABSTRACT:
A process for producing a low benzene content gasoline is disclosed. Catalytic reforming produces a benzene rich reformate which is fractionated to yield a benzene rich C6 fraction which is then over-alkylated, preferably with C2/C3 olefins from an FCC, to produce heavy alkylate having too high an end point for use as gasoline. Heavy alkylate is charged to an FCC reactor, along with a conventional heavy FCC feed, and converted back into a gasoline boiling range product. Heavy alkylate also produces reactive alkyl fragments in the cracking reactor which react with benzene produced during cracking of FCC heavy feed.

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patent: 4393262 (1983-07-01), Kaeding
patent: 4454364 (1984-06-01), Farcasiu et al.
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patent: 4827069 (1989-05-01), Kushnerick
patent: 4997543 (1991-03-01), Harandi et al.
patent: 5082983 (1992-01-01), Breckenridge et al.

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