国外发达国家已广泛使用三效催化剂。
Three-way catalyst has been widely used in the developed countries.
完全控制的三效催化剂。
本文对通用汽油机尾气净化三效催化剂载体及催化剂进行了深入研究。
This paper studied the supports material of small gasoline engine exhausts purification catalysts and the small gasoline engine exhausts purification catalysts itself in detail.
稀土铈对三效催化剂的改性作用表现在：在富燃和贫燃条件下起储存和释放氧的作用；
The effects of Ceria on the properties of TWC are discussed:oxygen storage and release under respective, lean and rich conditions;
汽车冷启动时催化剂床层温度低，尾气中的CO和烃类不能被传统三效催化剂有效消除。
The conventional threeway catalysts are not efficient enough to remove the CO and hydrocarbons during vehicle coldstart period due to the low temperature of catalyst bed.
认为以贵金属为主体的三效催化剂继续占有优势，贵金属的回收循环使用将变得越来越重要。
It is considered that three - way catalyst using precious metals as main component will still act as the main role. However, the re...
含铈氧化物由于其独特的氧化还原性能及较强的储氧能力成为汽车尾气催化净化三效催化剂的关键材料。
Materials containing ceria are used in three-way catalytic converters because of their unique redox properties and high oxygen storage capacity.
开发金属合金载体，以及新型单钯催化剂、过渡金属型或稀土钙钛矿型催化剂是今后三效催化剂研究的热点。
Developing alloy supporters, new Pd-only TWC, transition metal oxides and alkaline earth oxides as promoters will be the research points for TWC.
将FD三效催化剂与国外现有的商品催化剂进行了比较，结果表明FD催化剂具有良好的初活性和优异的高温耐老化性能。
The comparison of FD catalyst with the oversea commercial catalysts shows that FD catalyst has good initial activity and excellent thermal aging resistance.
介绍汽车尾气三效催化净化技术及净化器的主要工作原理，并对三效催化剂主要成分： 载体、 涂层、 活性催化剂及助剂进行论述。
This paper introduces the three-way emission control technology and the principle of auto exhaust catalytic converter. The main composition of the three-way-catalyst is also reviewed.
稀土元素以其特殊的物理和化学性质在汽车尾气三效净化催化剂（TWC）中获得了广泛应用。
Doped rare earth oxides have been widely used in three-way catalyst(TWC) for purification of automobile exhausts because of its special properties.
通过反复试验，确定了多效唑三步合成中相转移催化剂的最佳用量。
By repeated tests, a proper amount of phase transfer catalyst in the TCR -step synthesis of paclobutrazol is fixed.
用脉冲—火焰装置产生出适合评价催化剂三效活性的模拟汽车尾气。
The Simulated exhaust gas which was applicable for the evaluation of catalysts was generated by the pulse - flame reactor.
采用稀土元素部分或全部取代贵金属是研制开发三效汽车排气净化催化剂的重要方向。
Authors propose that the partial or whole replacement of noble metals by rare earth elements is an important direction in the future developments of emission control three way catalysts.
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.
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。
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。
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.
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