文献类型：期刊文献

中文题名：氨氧化与燃烧过程N_(2)O温室气体的催化分解和选择性催化还原

英文题名：Catalytic decomposition and selective catalytic reduction of N_(2)O emissions from ammonia oxidation and combustion

作者：周翼龙[1];宋珮瑶[1];戴启广[1]

机构：[1]华东理工大学,化学与分子工程学院工业催化研究所,绿色化工与工业催化全国重点实验室,上海200237

年份：2025

卷号：33

期号：6

起止页码：1

中文期刊名：工业催化

外文期刊名：Industrial Catalysis

语种：中文

中文关键词：三废处理与综合利用;氧化亚氮;催化分解;选择性催化还原;氨氧化;氨燃烧

外文关键词：three waste treatment and comprehensive utilization;nitrous oxide;catalytic decomposition;selective catalytic reduction;ammonia oxidation;ammonia combustion

摘要：N_(2)O作为仅次于CO_(2)和CH_(4)的第三大温室气体由于在硝酸生产氨氧化、NO_(x)净化SCR以及氨燃烧过程中不可避免生成和排放,近年来呈现出逐年增多趋势,对N_(2)O净化消除尤为关键。首先,催化分解因高效性、无毒性而成为N_(2)O减排最有前景的方法之一,详细综述了N_(2)O分解催化剂近年来的研究进展,回顾了硝酸生产过程N_(2)O高温分解催化剂(二段催化剂)的实际应用以及未来发展趋势,重点介绍了三大类N_(2)O低温分解催化剂如贵金属催化剂、Co基氧化物催化剂以及Co或Fe基分子筛催化剂的研究动态,并概括了这些催化剂的优点和缺点,简单论述了N_(2)O在典型Co和Fe基催化剂上的分解机理。然后,选择性催化还原也是消除N_(2)O的主要技术路线之一,分类比较了不同还原剂如CO、H_(2)、烷烃等各自的适用场景。最后,指出了目前N_(2)O消除技术路线、催化剂体系中存在的一些问题,并展望了N_(2)O和NO_(x)选择性还原同步消除的发展前景。
As the third largest greenhouse gas followed by CO_(2) and CH_(4),N_(2)O has been increasing year by year due to its inevitable generation and emission in the processes of ammonia oxidation in nitric acid production,SCR purification of NO_(x),and ammonia combustion.Therefore,the purification and elimination of N_(2)O are particularly crucial.Direct catalytic decomposition has emerged as one of the most promising methods for reducing N_(2)O emissions due to its high efficiency and no secondary pollution.This article first provides a detailed review of the research progress of N_(2)O decomposition catalysts in recent years,reviewing the practical application and future development trends of N_(2)O high-temperature decomposition catalysts(two-stage catalysts)in the nitric acid production,focusing on the research trends of three major types of N_(2)O low-temperature decomposition catalysts,such as precious metal catalysts,Co-based oxide catalysts,and Co or Fe-based molecular sieve catalysts,and summarizing the advantages and disadvantages of these catalysts.In addition,a simple discussion is provided on the decomposition mechanism of N_(2)O on typical Co and Fe-based catalysts.Selective catalytic reduction as one of the main technological routes for elimination of N_(2)O is also compared using different reducing agents such as CO,H_(2),alkanes,etc.Finally,it identifies existing issues in current catalytic systems and outlines future prospects for N_(2)O catalytic decomposition.