摘要
乙炔选择性加氢是乙烯精制过程中脱除微量乙炔杂质的关键技术,其核心挑战在于开发兼具高活性、高乙烯选择性和长期稳定性的催化剂体系。系统综述了近年来钯基、金基、镍基及铜基催化剂的研究进展,重点探讨了活性组分纳米化、双金属协同效应、载体界面调控、新型制备方法及助剂修饰对催化剂性能的影响。进一步总结了催化剂失活机制与抗积炭策略,提出未来加氢催化剂应聚焦低温活性提升、活性组分高分散性与长期稳定性的发展趋势,以期为规模化制备高效、稳定、低成本的工业催化剂提供理论指导。
Selective hydrogenation of acetylene is a key technology for removing trace acetylene impurities in the refining process of ethylene.The core challenge lies in developing a catalyst system that combines high activity,high ethylene selectivity,and long-term stability.This paper systematically reviews the research progress of palladium-based,gold-based,nickel-based,and copper-based catalysts in recent years,focusing on the effects of nanosizing of active components,bimetallic synergistic effects,carrier interface regulation,novel preparation methods,and additive modification on catalyst performance.Further,it summarizes the deactivation mechanisms of catalysts and anti-carbon deposition strategies,and proposes that future hydrogenation catalysts should focus on the development trends of enhanced low-temperature activity,high dispersion of active components,and long-term stability,providing theoretical guidance for the large-scale preparation of efficient,stable,and low-cost industrial catalysts.
作者
任超
张林生
陈亮
王瑞
李选志
REN Chao;ZHANG Linsheng;CHEN Liang;WANG Rui;LI Xuanzhi(Xi’an Origin Chemical Technology Co.,Ltd.,Xi’an 710061,Shaanxi,China;Shaanxi Yanchang Petroleum Yan’an Energy and Chemical Group Co.,Ltd.,Yan’an 727500,Shaanxi,China)
出处
《工业催化》
2025年第5期28-39,共12页
Industrial Catalysis
基金
陕西省重点研发计划项目(2020GY-286)。
关键词
催化剂工程
乙炔
乙烯
加氢
催化剂
载体
catalyst engineering
acetylene
ethylene
hydrogenation
catalyst
carrier
