国产欧Ⅲ车用三效催化剂研究  

Research on TWC Matching with Eu III Vehicles Made in China

作　　者：张爱敏[1] 宁平[1] 贺小昆 赵云昆 黄荣光 

机构地区：[1]昆明理工大学,云南昆明650093 [2]昆明贵研催化剂有限责任公司,云南昆明650101

出　　处：《稀有金属材料与工程》2006年第8期1327-1330,共4页Rare Metal Materials and Engineering

基　　金：国家高技术研究发展计划('863'计划)(2002AA321060);云南省自然科学基金项目(2004B0028Q)

摘　　要：为配合3种国产车达到欧Ⅲ排放标准,以一种性能优异的铈锆固溶体作为储氧材料,制成3种规格的三效催化剂。分别对100h台架快速老化前后的催化剂活性及催化剂老化前后与整车匹配后的排放情况,通过发动机台架活性评价装置、发动机快速老化试验台和整车转鼓试验进行了研究。结果表明:该催化剂不仅表现出良好的低温起燃特性、宽空燃比窗口特性和高催化选择性,而且配合整车能满足严格的欧ⅢⅠ型实验标准要求和8×104km耐久性的要求。Three specifications of the three-way catalysts （TWC） were prepared using an excellent Ceria-Zirconia solid solutions as oxygen storage materials to match the three vehicles made in China reaching the Eu Ⅲ standard. The catalysts activities before or after aging for 100 hours were researched on the engine bench test system. The three vehicles matched with the fresh catalysts and the aging catalysts reached the Eu Ⅲ standard for the Type 1 test and 80 000 kilometers durability.

关 键 词：三效催化剂 贵金属 铈锆固溶体 欧Ⅲ标准 

分 类 号：TQ426.96[化学工程]