Verfahren zur Herstellung von Isopropylbenzol aus Benzol und Propylen

Details

Veröffentlichungs-Nr.

EP2865660

Aktenzeichen

EP14190441

Anmeldetag

27. Oktober 2014

Veröffentlichung

4. Mai 2016

Erteilung

4. Mai 2016

Rechtsraum

EP

IPC

C07C2/66

Abstract

The present invention relates to a method for producing isopropyl benzene comprising the following steps. Step A: feeding a first stream containing benzene and a first stream containing propylene into a first reaction zone to contact a first catalyst for alkylation, and obtaining a first stream containing isopropyl benzene from the first reaction zone, dividing the first stream containing isopropyl benzene into a stream Ia and a stream IIa, the stream Ia circulating back into the first reaction zone and the stream IIa entering into a second reaction zone, having the stream entering the second reaction zone to contact a second catalyst for alkylation, and obtaining a second stream containing isopropyl benzene from the second reaction zone, and purifying at least a partial stream IIIa of the second stream containing isopropyl benzene, and obtaining a product isopropyl benzene. According to the method of the present invention, high propylene conversion rate, long operating life of catalyst, and low n-propyl benzene can be realized under even lower benzene to propylene ratio. The method of the present invention achieved better comprehensive results, thus having better economic and social benefits, as well as broader application prospect.

Anmelder

Firmen

China Petroleum & Chemical Corporation
Shanghai Research Institute of Petrochemical Technology SINOPEC

Land

🇨🇳 China

Fachgebiete