基于分子筛催化剂的燃气内燃机NOx排放控制技术研究  

Research on NOx Emission Control Technology for Gas Internal Combustion Engines Based on Molecular Sieve Catalysts

作　　者：龚嘉诚 金潇 Gong Jia-cheng;Jin Xiao(Zhejiang Zheneng Deqing Distributed Energy Co.,Ltd.,Zhejiang Huzhou 313000)

机构地区：[1]浙江浙能德清分布式能源有限公司,浙江湖州313000

出　　处：《内燃机与配件》2025年第5期27-29,共3页Internal Combustion Engine & Parts

摘　　要：氮氧化物(NOx)是燃气内燃机运行过程中产生的主要污染物,控制其排放已成为全球环境保护的关键挑战。分子筛催化剂,因其独特的孔结构和优异的催化性能,在NOx的去除中展现出广泛的应用前景。分子筛催化剂借助选择性催化还原(SCR)反应,高效地将NOx转化为无害的氮气和水,减轻对环境的影响。本文研究基于分子筛催化剂的燃气内燃机NOx排放控制技术,设计并开展多组实验,评估沸石分子筛催化剂在不同温度、气体流速和循环条件下的催化活性、热稳定性及循环寿命。结果表明,沸石分子筛催化剂在高温下保持良好的活性和稳定性,展现出在实际应用中的潜力,为NOx控制技术的进一步优化提供理论依据。Nitrogen oxides(NOx)are the main pollutants generated during the operation of gas internal combustion engines,and controlling their emissions has become a key challenge for global environmental protection.Molecular sieve catalysts,due to their unique pore structure and excellent catalytic performance,have shown broad application prospects in the removal of NOx.Molecular sieve catalysts efficiently convert NO x into harmless nitrogen and water through selective catalytic reduction(SCR)reactions,reducing the impact on the environment.This article studies the NOx emission control technology for gas internal combustion engines based on molecular sieve catalysts.Multiple experiments are designed and conducted to evaluate the catalytic activity,thermal stability,and cycle life of zeolite molecular sieve catalysts under different temperatures,gas flow rates,and cycling conditions.The results indicate that zeolite molecular sieve catalysts maintain good activity and stability at high temperatures,demonstrating potential in practical applications and providing theoretical basis for further optimization of NOx control technology.

关 键 词：分子筛催化剂 氮氧化物 选择性催化还原 

分 类 号：TK46[动力工程及工程热物理—动力机械及工程]