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首页> 外文期刊>Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications >The application of diesel oxidation catalysts to heavy duty diesel engines in Japan
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The application of diesel oxidation catalysts to heavy duty diesel engines in Japan

机译：柴油氧化催化剂在日本重型柴油发动机中的应用

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摘要

This study concerns the effects of diesel oxidation catalysts for heavy duty diesel engines over the Japan diesel 13 mode cycle. The effects of diesel oxidation catalysts were determined by measuring exhaust emissions from both a naturally aspirated diesel engine (NA-engine) and a turbo charged-after cooled diesel engine (TC-engine). The oxidation of particulate matter (PM), hydrocarbon (HC), carbon monoxide (CO) and the generation of sulfates were evaluated in the case of a palladium (Pd) based catalyst, a platinum (Pt) based catalyst and a base metal type catalyst. The effects of a high activity oxidation catalyst using ultra low sulfur diesel fuel were also reported. For the NA-engine, it was found that Pt based and Pd based oxidation catalysts had no effect on particulate reduction but reduced CO emissions and HC emissions, however, a base metal type oxidation catalyst had effects on particulate reduction but only small effects on the reduction of HC emissions and increased CO emissions. For the TC-engine, it was demonstrated that particulates, CO and HC emissions were reduced by Pd based oxidation catalysts and Pt based oxidation catalysts. When ultra low sulfur fuel was used, a high loading Pt based oxidation catalyst had a big effect to reduce particulates, HC and CO emissions for the NA-engine.
机译：这项研究涉及在日本柴油13模式循环中重型柴油机的柴油氧化催化剂的作用。柴油氧化催化剂的作用是通过测量自然吸气柴油发动机（NA发动机）和涡轮增压后冷却柴油发动机（TC发动机）的废气排放来确定的。在钯（Pd）基催化剂，铂（Pt）基催化剂和贱金属类型的情况下，评估了颗粒物（PM），碳氢化合物（HC），一氧化碳（CO）的氧化和硫酸盐的产生催化剂。还报道了使用超低硫柴油的高活性氧化催化剂的效果。对于NA发动机，发现Pt和Pd基氧化催化剂对颗粒还原没有影响，但减少了CO排放和HC排放，但是，贱金属型氧化催化剂对颗粒还原有影响，但对Pd和Pd的影响很小。减少HC排放并增加CO排放。对于TC发动机，证明了Pd基氧化催化剂和Pt基氧化催化剂可减少颗粒，CO和HC排放。当使用超低硫燃料时，高负荷的基于Pt的氧化催化剂对减少NA发动机的颗粒，HC和CO的排放具有很大的作用。

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