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Progress in Chemistry DOI: 10.7536/PC231104   

Selective Hydrogenation of Acetylene: from Thermal Catalysis to Electrocatalysis, Photocatalysis and Photothermal Catalysis

Baisheng Pang, Yingying Xing, Ruihong Gao, Yaohua Fang, Haijun Zhang, Liang Huang*   

  1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
  • Received: Revised:
  • Contact: email: huangliang1986@wust.edu.cn
  • Supported by:
    National Natural Science Foundation of China (No. 52372030, U23A20559, 52272021)
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Ethylene is one of the most important raw materials in the modern petrochemical industry. The preparation of ethylene by steam cracking of petroleum hydrocarbons generates acetylene with a volume fraction about 0.3% to 3%. These trace amounts of acetylene can poison the catalyst of the ethylene polymerization reaction. Selective catalytic hydrogenation of acetylene is considered to be one of the most effective methods for removing acetylene impurities. This paper reviews the research progress of acetylene selective hydrogenation in recent years, introduces the reaction mechanism of acetylene hydrogenation, and summarizes the effects of catalyst active components, additives and carriers on the performance of acetylene selective hydrogenation. The development trend of how to further improve the performance of acetylene selective hydrogenation is discussed from the perspectives of electrocatalysis, photocatalysis and photothermal catalysis. Finally, some suggestions are proposed for the subsequent research on the selective hydrogenation of acetylene.
Key words: selective hydrogenation of acetylene, catalyst, thermal catalysis, electrocatalysis, photocatalysis, photothermal catalysis

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