Process for producing styrene

Details Process for producing styrene Process for producing styrene

1984-05-23

1985-10-22

Gantz, D. E.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

Having alkenyl moiety, e.g., styrene, etc.

585440, 585442, 585444, C07C 536

Patent

active

045490325

ABSTRACT:
A process for producing styrene by the dehydrogenation of ethyl benzene whereby the ethyl benzene in a mixture with steam is introduced into a tubular reactor, the tubes of which are heated by molten salts. The structural parameters of this process are the tube diameter which should be 20 to 35 millimeters, the temperature of the molten salts which should be 580.degree. to 660.degree. C. and at most 20.degree. C. higher than the reaction temperature at the catalyst and the weight ratio of steam to ethyl benzene of the feed stock which should be 0.5 to 1. The process saves energy and increases efficiency by reducing the steam consumption.

REFERENCES:
patent: 3100807 (1963-08-01), Hatfield et al.
patent: 3158564 (1964-11-01), Cole
patent: 3690839 (1972-09-01), Jones
patent: 3807963 (1974-04-01), Smith
patent: 4229603 (1980-10-01), Lyon
patent: 4287375 (1981-08-01), Moeller et al.

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