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- TWC Three Way Catalyst System 三元催化系统
- TWC three way catalyst converter 三元催化转换器
- This paper introduces some kinds of catalysts for automobile exhaust purification, such as Three Way Catalysts (TWCs), perovskite oxide catalyst, and molecular sieve catalyst by metal ions. 综述了目前国际上催化消除汽车尾气催化剂的研究现状,分析了三效贵金属催化剂、钙钛矿氧化物催化剂、分子筛催化剂各自的优势和存在的问题。
- Keywords ceria;lanthana;three way catalyst;precious metal; 氧化铈;氧化镧;三效催化剂;贵金属;
- The three way catalysts promoters (Ce Zr)O 2, (Pr Ce Zr)O 2 and (Pr Zr)O 2 were prepared by sol gel method with some special procedures. They were characterized by XRD, EXAFS and BET surface area determination. 采用溶胶 凝胶法制备了三效催化剂助剂 (Ce Zr)O2 ,(Pr Ce Zr)O2 和 (Pr Zr)O2 ,并对它们进行了XRD ,EXAFS和BET比表面的测定。
- The type and the component of three way catalysts (TWC), the role of rare earth elements in TWC, the application prospect of rare earth-containing TWC and their market potential were presented. 叙述了三元(效)催化剂的类型和组成，稀土在三元催化剂中的作用及其应用前景和市场潜力。
- The type and the component of three way catalysts (TWC), the role of rare earth elements in TWC, the application prospect of rare earth containing TWC and their market potential were presented. 叙述了三元（效）催化剂的类型和组成，稀土在三元催化剂中的作用及其应用前景和市场潜力。
- The drawbacks of existing supports for three way catalysts(TWC)in structure and performance were discussed,and the function and synthesis of ceria-zirconia solid solution for TWC were reviewed. 讨论了现有汽车尾气净化催化剂载体存在的结构和性能缺陷,阐述了铈锆固溶体在尾气净化中的作用,以及铈锆固溶体的主要合成方法,并对比了各种方法的优缺点。
- Keywords ceria;zirconia;oxygen storage capacity;thermal stabilization;three way catalyst; 氧化铈;氧化锆;储氧能力;热稳定性;三效催化剂;
- three way catalyst 三元催化器
- three way catalyst (TWC) 三效催化器
- three way catalyst(TWC) 三效催化剂（TWC）
- Do the three way match of oversea purchase. 三方配比核实。
- The catalyst system and technics for oxidative carbonylation of phenol to diphenyl carbonate (DPC) has been studied. 针对苯酚氧化羰基化合成碳酸二苯酯(DPC)洁净化工过程用催化剂和工艺条件进行了较系统的研究。
- Synthesis of adamantane was studied using AlCl 3 catalyst system and co-catalysts. 用三氯化铝－助催化剂的催化体系进行了金刚烷合成的研究。
- The load mechanism of active component of this catalyst system has also been discussed. 并指出了本催化剂活性组份可能的负载机理。
- A kind of catalyst system has been successfully developed for Beijing Cherokee with multipoint injection. 针对北京切诺基四缸多点喷射轻型车,本文研制成功了一种催化转化器。
- Connections to this servers will only work if your system advertises the right MSS in the TCP three way handshake. 只有你的系统在TCP三方握手过程中提供了正确的MSS，才能连接到这些服务器。
- Catalyst system for hydrogenation of maleic anhydrite and corresponding products are introduced. 摘要介绍了顺酐加氢反应的催化体系以及生成相应产物的情况；
- Thus it becomes an economic tradeoff which must be evaluated for each catalyst system if optimum results are to be obtained. 这就成为一个经济性权衡的问题，要想得到最佳化成果，就必须对每一个催化剂系统进行评价。
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