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The impact of crankcase oil containing phosphorus on catalytic converters and engine exhaust emissions

机译：含磷曲轴箱油对催化转化器和发动机废气排放的影响

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Two 10W30 mineral-base phosphorus containing (commercial) and phosphorus-free (P-Free) crankcase oils were tested in the engine dynamometer for the poisoning effects on a catalytic converter and emission-engine's performance. The emission results of the two oils were compared with and without a catalytic converter, including the light-off temperature of the catalyst. Surface characterization was used to determine accumulated catalyst poisoning from the oil additives. The performance analysis shows that the catalytic converter lowers the torque and power for the commercial and P-Free oils, whereas the specific fuel consumption increases for both oils in the presence of the catalytic converter. In both cases of the presence and the absence of catalytic converter the torque, power and specific fuel consumption remain the same for phosphorus containing and P-Free oils. The presence of the catalytic converter shows lower HC and CO and higher CO{sub}2 emissions for both P-Free and commercial oils. Surface characterization using x-ray microanalysis techniques of Scanning Electron Microscopy and indicated residual amounts of poisons, predominantly P, Ca, S and Zn deposited on the catalyst.
机译：在发动机测功机中测试了两种10W30矿物基含磷（商业）和无磷（无P）曲轴箱油，以了解中毒对催化转化器和排放发动机性能的影响。比较了有无催化转化器时两种油的排放结果，包括催化剂的起燃温度。表面表征用于确定来自油添加剂的累积催化剂中毒。性能分析表明，催化转化器降低了商用和无P机油的扭矩和功率，而在催化转化器存在下，两种机油的比燃料消耗均增加。在有无催化转化器的情况下，含磷和无磷油的扭矩，功率和比燃料消耗均保持不变。催化转化器的存在表明，无P型油和商用油的HC和CO排放量较低，CO {sub} 2排放量较高。使用扫描电子显微镜的X射线微分析技术进行表面表征，并指出残留在催化剂上的毒物残留量，主要是P，Ca，S和Zn。

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