低浓度甲烷低温燃烧贵金属基催化剂的研究进展

摘要/Abstract

摘要： 甲烷（CH₄）的增温效应显著，收集和提纯成本过高，回收利用经济性差，我国严格控制低浓度甲烷的排放。催化燃烧技术燃烧温度低，燃烧均匀、效率高，是实现甲烷完全氧化的有效措施。贵金属基催化剂具有起燃温度低、催化活性高和合成条件温和等特点，受到广泛关注。基于此，综述了近年来甲烷燃烧贵金属催化剂的研究进展，概述了Pd和Pt基催化剂中的活性中心及双金属的协同效应，探讨了不同载体对催化剂的影响因素，系统介绍了助剂对催化剂的改性效应，提出了贵金属基催化剂应用面临的难点并展望了未来的发展趋势。

关键词: 甲烷, 催化燃烧, 贵金属基催化剂, 活性物种, 催化剂载体, 助剂

Abstract: Methane (CH₄) has a significant greenhouse effect. Due to high costs of collection, purification and low economic efficiency of recycling, China has strictly controlled the emissions of low-concentration methane. Catalytic combustion, characterized by low temperature, uniform reaction, and high efficiency, is an effective method for complete methane oxidation. Noble metal-based catalysts have attracted wide attention owing to low light-off temperature, high catalytic activity, and mild synthesis conditions.This paper reviews the recent progress of noble metal-based catalysts, summarizes the active sites in Pd and Pt-based catalysts and synergistic effects of bimetals, discusses the effects of different supports, and systematically introduces the modification of promoters. Finally, the existing challenges and future development trends of noble metal-based catalysts are prospected.

Key words: methane, catalytic combustion, noble metal-based catalyst, active specie, catalyst support, promoter

郑涵刁玉霞阿来古丽·叶克平徐广通. 低浓度甲烷低温燃烧贵金属基催化剂的研究进展[J]. 石油炼制与化工, 2026, 58(7): 160-168.

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