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Method and composition for reducing emissions from a gasoline engine equipped with a three-way catalytic converter
Method and composition for reducing emissions from a gasoline engine equipped with a three-way catalytic converter
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机译:减少装备有三元催化转化器的汽油发动机排放物的方法和组合物
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摘要
Gasoline engines equipped with three-way catalysts emit less NOx, hydrocarbons and carbon monoxide when operated on fuels containing a bimetallic catalyst comprising rhodium acetylacetonate and a fuel-soluble platinum compound such as diphenyl cyclooctadiene platinum(II) or platinum acetyl acetonate. The total metals in the additive will be dosed at a concentration of less than about 2 ppm (milligrams of metal to liter of gasoline) based on the amount of gasoline burned in the engine. Preferred dosages will be from about 0.15 to about 1.5 ppm, with a ratio of platinum to rhodium of from about 3:1 to about 15:1.
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机译:配备三效催化剂的汽油发动机在含有双金属催化剂(包括乙酰丙酮铑和可溶于燃料的铂化合物,例如二苯基环辛二烯铂(II))的燃料上运行时,排放的NO x Sub>,碳氢化合物和一氧化碳较少。或乙酰丙酮铂。基于发动机中燃烧的汽油量,添加剂中的总金属的浓度应小于约2 ppm(金属毫克/升汽油)。优选的剂量为约0.15至约1.5ppm,铂与铑的比例为约3∶1至约15∶1。
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