New Concept of Fuel Combustion DOC

机译：燃料燃烧Doc的新概念

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Diesel exhaust emission control systems often contain DOC (Diesel Oxidation Catalyst) + CSF (Catalyzed Soot Filter) components. In this system PM (particulate matter) is filtered and accumulated in the CSF and such filtered PM is periodically combusted by supplying heat to the CSF. The heat to CSF is generated within the DOC by an exothermic reaction with extra fuel supplied to the DOC. Here the exothermic performance of DOC depends on not only the active catalytic site (such as Pt and/or Pd) but also on the characteristics of the porous material supporting the precious metals. Various properties of Al_2O_3, i.e. pore diameter, pore volume, BET surface area, acidity, basicity and the Ea (activation energy) of fuel combustion, used in DOCs and PGM particle size of each DOC were measured. The fuel combustion performance of each DOC was evaluated by diesel engine bench. A correlation between various properties and the fuel combustion performance was investigated by multiple analysis software, modeFRONTIER.

机译：柴油排放控制系统通常含有DOC（柴油氧化催化剂）+ CSF（催化烟灰过滤器）组分。在该系统中，过滤并累积在CSF中，并通过向CSF提供热量来定期燃烧这种过滤的PM。通过与提供给DOC的额外燃料的放热反应，在DOC中产生热量至CSF。这里，DOC的放热性能不仅取决于活性催化部位（如PT和/或PD），还取决于支撑贵金属的多孔材料的特性。测量了燃料燃烧的胃直径，孔隙体积，BET表面积，酸度，碱度和EA（活化能量的各种性质，用于每个DOC的DOC和PGM粒度的燃料燃烧。每个DOC的燃料燃烧性能由柴油发动机工作台评估。通过多个分析软件，ModeFrontier研究了各种性质与燃料燃烧性能之间的相关性。

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《SAE International Powertrains, Fuels Lubricants Meeting》|2016年|1 Electronic text data|共6页
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Tomoaki Ito; Makoto Nagata;
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New Concept of Fuel Combustion DOC

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