国四100 mL踏板摩托车三效催化器贵金属减量化研究  

Study on Noble Metal Reduction of Three-way Converters of China-IV 100 mL Pedal Motorcycles

作　　者：祝清超 李建统 焦毅 王健礼[2] 陈耀强[2] ZHU Qingchao;LI Jiantong;JIAO Yi;WANG Jianli;CHEN Yaoqiang(Jiangmen Dachangjiang Group Co.,Ltd.,Jiangmen,Guangdong,529030,China;Sichuan University)

机构地区：[1]江门市大长江集团有限公司,广东江门529030 [2]四川大学

出　　处：《小型内燃机与车辆技术》2023年第3期27-30,共4页Small Internal Combustion Engine and Vehicle Technique

基　　金：大长江集团有限公司委托横向项目(19H0590、19H0591)资助。

摘　　要：三效催化器是控制摩托车尾气排放最有效的技术手段。而当前三效催化器中起主要作用的活性组分贵金属的价格持续升高,对行业下游特别是主机厂带来巨大的成本压力。优化催化器系统设计,减少贵金属用量是降低三效催化器成本的关键。基于一款100 mL排量国四踏板摩托车,在该车原催化器技术方案基础上,通过对催化器的系统设计,从贵金属配比、催化剂涂层配方和催化器载体结构选型等方面开展优化降本研究。实验结果表明通过优化方案可使得贵金属用量下降69%,同时催化剂新鲜态和耐久后排放性能满足国四排放要求且均优于原方案。Three-way catalytic converter is the most effective technology to control motorcycle exhaust emissions.However,the price of noble metal,the main active component in the three-way catalytic converter,continues to rise,which brings great cost pressure to the downstream industry.Optimizing the design of catalytic converter system and reducing the amount of precious metal is the key to reduce the cost of three catalytic converter.The work is based on a China IV 100cc pedal motorcycle,through the catalytic converter system design,including the precious metal ratio,catalyst coating formula and catalytic converter support structure selection and other aspects to optimize the cost reduction work.The experimental results show that the amount of noble metal can be reduced by 69%through the optimized scheme,and the fresh and aged catalysts meet the requirements of China-IV emission standard and are better than the original scheme.

关 键 词：踏板摩托车 国四标准 三效催化器 贵金属减量 系统设计 

分 类 号：U483[交通运输工程—载运工具运用工程]