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发明公开
CN103619469A 冷起动催化剂和它在排气系统中的应用 无效 - 驳回 复审申请

冷起动催化剂和它在排气系统中的应用
摘要：
公开了一种冷起动催化剂。该冷起动催化剂包含沸石催化剂和负载的铂族金属催化剂。该沸石催化剂包含贱金属、贵金属和沸石。该负载的铂族金属催化剂包含一种或多种铂族金属和一种或多种无机氧化物载体。本发明还包括一种排气系统，其包括该冷起动催化剂。该冷起动催化剂和该方法得到了在冷起动期间改进的NOx储存和NOx转化，改进的烃储存和转化，和改进的CO氧化。
摘要（英）：

A cold start catalyst is disclosed. The cold start catalyst comprises a zeolite catalyst and a supported platinum group metal catalyst. The zeolite catalyst comprises a base metal, a noble metal, and a zeolite. The supported platinum group metal catalyst comprises one or more platinum group metals and one or more inorganic oxide carriers. The invention also includes an exhaust system comprising the cold start catalyst. The cold start catalyst and the process result in improved NOx storage and NOx conversion, improved hydrocarbon storage and conversion, and improved CO oxidation through the cold start period.

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