A basic complex salt supported Ru catalyst for selective hydrogenation of benzene to cyclohexene and its preparation, modification method and application

CN116586057BActive Publication Date: 2026-08-28ZHENGZHOU NORMAL UNIV +1
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Patent Information

Application Number
CN202310534985.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-12
Publication Date
2026-08-28
Estimated Expiration
2043-05-12

AI Technical Summary

Technical Problem

[0003]中国专利如CN 01122208、CN 200410060451.0、CN 03115666.5、CN200410101806.6、CN 1424293A、CN 101219391A、CN 200510126062.8等公开各一种苯选择加氢制环己烯的Ru催化剂，在催化反应体系中加入了反应修饰剂ZnSO4，提高了Ru催化剂环己烯选择性，然而ZnSO4的水溶液呈酸性，温度越高酸性越强，因此催化体系对反应装置的耐腐性要求很高，需要用耐酸很强的哈氏合金，这就极大限制了苯选择加氢制环己烯工艺的推广应用

Benefits of technology

[0013]相对于现有技术，本发明公开的一种新的苯选择加氢制环己烯碱式复盐负载的纳米Ru催化剂，贵金属Ru含量比传统工业催化剂低，贵金属利用率高；在无ZnSO4作反应修饰剂时也能表现出高催化活性和高环己烯选择性；而且该催化剂具有良好的调变性能和重复使用性能，具有良好的稳定性。

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Abstract

The application discloses a catalyst for benzene selective hydrogenation to cyclohexene base complex salt loaded Ru, a preparation method, a modulation method and application of the catalyst. The catalyst is composed of an active component Ru and a carrier base complex salt. The base complex salt is one or both of base zinc silicate and base zinc carbonate. The active component Ru and the carrier base zinc silicate are both calculated according to the atomic number of metal elements, and the atomic number of Ru is 1. The atomic number ratio of each component in the catalyst is as follows: the atomic number of Ru is 1, the atomic number of Zn is 0.03-4, and the atomic number of Si is 0-3. The base complex salt loaded nano Ru catalyst disclosed by the application has the advantages of low content of noble metal Ru, high utilization rate of noble metal, high catalytic activity and high cyclohexene selectivity without ZnSO4 as a reaction modifier, good modulation performance and repeated use performance, and good stability.
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Citation Information

Patent Citations

  • Process for producing ruthenium base catalyst for producing cyclohexene with benzene selective hydrogenation

    CN101219391A

  • Catalytic system containing nanometer Ru catalyst and alkali zinc sulfate salt and method for preparing cyclohexene through catalytic benzene selective hydrogenation

    CN102744085A

  • A kind of preparation method of the ruthenium-based bimetallic catalyst of benzene partial hydrogenation to cyclohexene

    CN104190417B

  • A method for adjusting the activity selectivity of benzene selective hydrogenation to cyclohexene using ru-zn catalyst

    CN105130734B

  • Ruthenium-Based Catalyst for Partial Hydrogenation of Benzene to Cyclohexene and Its Modification Method

    CN105664931B