The Chemistry and Control of H2S Emissions in Three-Way Catalysts
作者： T. J. Truex , H. Windawi , P. C. Ellgen
DOI: 10.4271/872162
关键词: Catalytic converter 、 Internal combustion engine 、 Catalysis 、 Waste management 、 Hydrogen 、 Chemical reaction 、 Chemistry 、 Environmental engineering 、 Pollution prevention 、 Sulfur 、 Heat engine
摘要: Recent reports of significant H2S emissions from single bed three way catalyst equipped vehicles have prompted vehicle and laboratory studies the mechanism formation over catalysts. Vehicle shown occurrence short duration significantly higher than fuel sulfur inlet levels under certain transient conditions. These cannot be explained by previously reported steady state conversion SO2 to H2S. Laboratory flow reactor identified a second for involving rapid reductive release stored on surface. This can account emission which exceed durations. Results are presented define factors affect these two mechanisms determine methods controlling operation (A).
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