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首页> 外文期刊>Journal of automobile engineering >ANALYSIS OF PERFORMANCE OF VARIOUS METAL CATALYSTS USED IN CATALYTIC CONVERTERS WITH MC-2 CONFIGURATION BY C.F.D. TECHNIQUES
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ANALYSIS OF PERFORMANCE OF VARIOUS METAL CATALYSTS USED IN CATALYTIC CONVERTERS WITH MC-2 CONFIGURATION BY C.F.D. TECHNIQUES

机译：用C.F.D.分析MC-2构型的催化转化器中使用的各种金属催化剂的性能技巧

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摘要

Catalytic converters are generally fitted in series with the exhaust pipe of almost all vehicles. These Catalytic converters helps in infiltration of harmful pollutants like hydrocarbons (HC), carbon monoxide (CO) and nitrogen oxides (NOx) from the exhaust gases released into atmosphere. They oxidize carbon monoxide (CO) to carbon dioxide (CO2), and reduce nitrogen oxides (NOx) into nitrogen and water vapors. Catalytic converters have become integral part of exhaust system of automobile ever since their first introduction in 1974. More than 96 percent of cars manufactured today are equipped with catalytic converters. Most of the catalytic converters use platinum, Palladium & Rhodium as catalyst to bring about oxidation costly and rarely available. The scarcity and high demand of present catalyst materials necessitate the need for finding out the alternatives. Catalytic converters are available in various designs. Among all other particulate filter materials, knitted steel wire mesh material is selected as filter materials in this paper. In our attempt to analyze filtration performance of catalytic converters working with alternative catalysts for the catalysis, we have chosen copper and Nickel as alternative catalysts for Platinum-Palladium due to similarity in their catalytic properties. Amongst various constituents of exhaust gas, CO and NO are most dangerous pollutants from Global warming point of view. Thus this particular work is concentrated on analyzing filtration efficiency for these two pollutants.
机译：催化转化器通常与几乎所有车辆的排气管串联安装。这些催化转化器有助于从释放到大气中的废气中渗入有害污染物，例如碳氢化合物（HC），一氧化碳（CO）和氮氧化物（NOx）。它们将一氧化碳（CO）氧​​化为二氧化碳（CO2），并将氮氧化物（NOx）还原为氮气和水蒸气。自从1974年首次引入催化转化器以来，催化转化器就已成为汽车排气系统不可或缺的一部分。如今，超过96％的汽车都装有催化转化器。大多数催化转化器使用铂，钯和铑作为催化剂，导致氧化成本高昂，并且很少获得。当前催化剂材料的稀缺性和高需求使得需要寻找替代物。催化转化器有多种设计。在所有其他微粒过滤材料中，编织钢丝网材料被选为本文的过滤材料。在尝试分析与替代催化剂一起工作的催化转化器的过滤性能时，我们选择了铜和镍作为铂钯催化剂的替代催化剂，因为它们的催化性能相似。从全球变暖的角度来看，在废气的各种成分中，CO和NO是最危险的污染物。因此，这项特殊的工作集中在分析这两种污染物的过滤效率上。

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