Process for producing propylene and aromatic hydrocarbons,...

Details Process for producing propylene and aromatic hydrocarbons,... Process for producing propylene and aromatic hydrocarbons,...

2007-01-12

2011-10-11

Dang, Thuan Dinh (Department: 1772)

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce aromatic

C585S330000, C585S324000, C585S418000, C585S653000

Reexamination Certificate

active

08034987

ABSTRACT:
It is an object of the present invention to provide an improved process whereby the yield structure of the components can be varied by a simple method, and the products can be produced stably and efficiently in a process for producing propylene and aromatic hydrocarbons from a hydrocarbon feedstock containing C4-12olefins using a medium pore diameter zeolite-containing catalyst. A process for producing is disclosed which comprises a propylene production step wherein a specific zeolite catalyst is used to remove a C4+hydrocarbon component from a reaction mixture, and part of the hydrocarbon component is recycled as necessary without modification, and an aromatic hydrocarbon production step wherein all or a part of the C4+hydrocarbon component is used as the raw material.

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