Mixed phase ethylation process for producing ethylbenzene

Details Mixed phase ethylation process for producing ethylbenzene Mixed phase ethylation process for producing ethylbenzene

1998-10-20

1999-11-02

Griffin, Walter D.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585804, 585867, C07C 264, C07C 700

Patent

active

059774231

ABSTRACT:
An ethylbenzene production method is applied using a mixed phase ethylation of dilute ethylene with impure benzene. The benzene feed contains over 75% by weight benzene, with the balance being non-aromatic C.sub.6 to C.sub.7 hydrocarbons, including cyclohexane. The production method involves separating the benzene vapor from the hydrogen/methane rich vent gas by condensing the benzene at a temperature below about 5.5.degree. C., the normal freezing point of benzene.

REFERENCES:
patent: 3426088 (1969-02-01), Proctor, Jr.
patent: 4891458 (1990-01-01), Innes et al.
patent: 5176883 (1993-01-01), Smith, Jr. et al.

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