Ethylbenzene production process with ex situ selectivated zeolit

Details Ethylbenzene production process with ex situ selectivated zeolit Ethylbenzene production process with ex situ selectivated zeolit

1995-02-01

1997-11-18

Bos, Steven

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

C07C 268

Patent

active

056890257

ABSTRACT:
A process for ethylbenzene production that involves contacting a hydrocarbon feedstream including benzene and ethylene, under alkylation conditions, with a catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the molecular sieve to at least two selectivation sequences, each selectivation sequence comprising contacting the catalyst with a silicon compound followed by calcination. The modified catalyst used in the process may also be steamed. Optionally, the modified catalyst may be trim-selectivated.

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