Title:
METHOD FOR PREPARING CUMENE BY USING CELLULAR STRUCTURED CATALYST
Document Type and Number:
WIPO Patent Application WO/2016/106773
Kind Code:
A1
Abstract:
Provided is a method for preparing cumene by using a cellular structured catalyst. The method comprises the following steps: filling a cellular structured catalyst in a constant-temperature zone of a fixed-bed reactor or a reaction zone of a bubble-point reactor; and introducing benzene and propylene into the fixed-bed reactor or the bubble-point reactor, so that benzene and propylene are subjected to an alkylation reaction on the cellular structured catalyst to prepare cumene, wherein the molar ratio of fed materials, namely, benzene and propylene, is 2.0 to 6.0, the reaction temperature is 140°C to 170°C, the reaction pressure of the fixed-bed reactor is 2.8 MPa to 3.2 MPa, the reaction pressure of the bubble-point reactor is 0.2 MPa to 0.7 MPa, the mass space velocity of propylene is 4.0 h-1 to 15.0 h-1, and when the conversion rate of propylene reaches 100%, cumene is selectively higher than 85%. The cellular structured catalyst has the advantages of low pressure drop, low energy consumption, excellent mass and heat transfer performance, high internal diffusion efficiency factor and easy enlargement. The cellular structured catalyst is used in combination with the bubble-point reactor, and an intensification technology of a coupling process of the structured catalyst and the bubble-point reactor can be formed.
Inventors:
CHEN BIAOHUA (CN)
LEI ZHIGANG (CN)
DAI CHENGNA (CN)
LI YINGXIA (CN)
HUANG CHONGPIN (CN)
LI JIANWEI (CN)
ZHANG JIE (CN)
LEI ZHIGANG (CN)
DAI CHENGNA (CN)
LI YINGXIA (CN)
HUANG CHONGPIN (CN)
LI JIANWEI (CN)
ZHANG JIE (CN)
Application Number:
PCT/CN2015/070037
Publication Date:
July 07, 2016
Filing Date:
January 04, 2015
Export Citation:
Assignee:
UNIV BEIJING CHEMICAL (CN)
International Classes:
C07C2/66; B01J35/04; C07C15/085
Domestic Patent References:
| WO2006057945A2 | 2006-06-01 |
Foreign References:
| CN101811928A | 2010-08-25 | |||
| CN101111461A | 2008-01-23 | |||
| CN102921454A | 2013-02-13 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
北京三友知识产权代理有限公司 (CN)
北京三友知识产权代理有限公司 (CN)
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