Progress in Ru-Based Amorphous Alloy Catalysts for Selective Hydrogenation of Benzene to Cyclohexene

Abstract

Ru-based amorphous alloy catalysts prepared by the chemical reduction method have high activity and excellent cyclohexene selectivity due to their structure that has the merits of amorphous alloys and nano-particles. In particular, the supported catalysts have the advantages of better utilization of the Ru noble metal and ease of use in industry. The thermodynamics and kinetics for selective hydrogenation of benzene to cyclohexene over these catalysts, and the influence of the structure and composition of the catalysts were described. The reaction conditions, ability to modify the catalysts, and results of pilot tests were emphasized. Directions in this field for future research were suggested. ：化学还原法制备的非晶态合金 Ru 基催化剂融合了纳米粒子和非晶态合金的结构特征, 在苯选择加氢反应中表现出高活性和高环己烯选择性; 尤其是负载型非晶态合金 Ru 基催化剂, 具有贵金属利用率高和易于工业化等优点, 有着明显的竞争优势. 本文综述了苯选择加氢的热力学和动力学特征, 非晶态合金催化剂结构和组成及其对催化性能的影响; 总结了催化工艺条件、催化剂可调变性和中试成果, 并展望了该技术的发展趋势.