Production method of cyclohexylbenzene
By using a metal/USY molecular sieve catalyst to carry out the alkyl transfer reaction between benzene and polycyclohexylbenzene under a hydrogen atmosphere, the problems of high reaction temperature, low selectivity and short catalyst life in the prior art are solved, and a high-efficiency and low-energy consumption preparation of cyclohexylbenzene is achieved.
Patent Information
- Application Number
- CN202311269582.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-28
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2043-09-28
AI Technical Summary
In the prior art, the transfer reaction between benzene and polycyclohexylbenzene alkyl has problems such as high reaction temperature, low selectivity of cyclohexylbenzene, high selectivity of methylcyclopentylbenzene by-product, and short catalyst life.
The metal/USY molecular sieve is used as a catalyst to carry out an alkyl transfer reaction under a hydrogen atmosphere. By adjusting the composition and process conditions of the catalyst, the reaction temperature is reduced, the catalyst life is extended, and the formation of key impurities is reduced.
It realizes efficient preparation of cyclohexylbenzene at lower reaction temperatures, improves the selectivity and product purity of cyclohexylbenzene, extends the service life of the catalyst, and reduces separation energy consumption.