Combination dehydrocyclodimerization and dehydrogenation process

Details Combination dehydrocyclodimerization and dehydrogenation process Combination dehydrocyclodimerization and dehydrogenation process

1994-12-02

1997-02-04

Pal, Asok

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce aromatic

585314, 585316, 208 65, 208138, C07C 500, C07C 200, C07C 600, C10G 3906

Patent

active

056000464

ABSTRACT:
This invention deals with a process for converting aliphatic C.sub.2 -C.sub.6 hydrocarbons into C.sub.6.sup.+ aromatics and C.sub.3.sup.= /C.sub.4.sup.= olefins. The process involves combining dehydrocyclodimerization (DHCD) with dehydrogenation. Thus, the feedstream is first sent to a DHCD zone which produces an effluent stream which contains C.sub.6.sup.+ aromatics along with C.sub.1 -C.sub.5 hydrocarbons. This effluent stream is separated into a stream containing C.sub.1 -C.sub.4 hydrocarbons and one containing C.sub.6.sup.+ aromatics. The C.sub.1 -C.sub.4 containing stream is flowed to a dehydrogenation zone to produce C.sub.3.sup.= /C.sub.4.sup.= olefins.

REFERENCES:
patent: 4447653 (1984-05-01), Vora
patent: 4654455 (1987-03-01), Chao
patent: 4746763 (1988-05-01), Kocal
patent: 4868342 (1989-09-01), Verson
patent: 5401893 (1995-03-01), Gosling et al.

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