Process for selectively producing aromatic compounds

Details Process for selectively producing aromatic compounds Process for selectively producing aromatic compounds

2006-05-30

2006-05-30

Dang, Thuan D (Department: 1764)

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By ring formation from nonring moiety, e.g., aromatization,...

C585S419000

Reexamination Certificate

active

07053258

ABSTRACT:
A process is disclosed for selectively producing one or more aromatic compounds selected from benzene, toluene, para-xylene, meta-xylene, ortho-xylene, ethylbenzene and mixtures thereof from a feed containing C6–C20hydrocarbons and/or C6–C8alcohols. The feed is initially subjected to a chemical conversion step to increase the concentration of C6–C8paraffin and/or olefin precursors of said one or more aromatic compounds and then resulting precursor-enriched feed is then contacted with a dehydrocyclization catalyst under conditions of temperature and hydrogen partial pressure sufficient to effect dehydrocyclization of said paraffin and/or olefin precursors. A product rich in the desired aromatic compound(s) can then be recovered from the dehydrocyclization effluent.

REFERENCES:
patent: 4456527 (1984-06-01), Buss et al.
patent: 6177601 (2001-01-01), Bogdan et al.

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