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    • 1. 发明授权
    • Low emissions diesel fuel
    • 低排放柴油
    • US5746783A
    • 1998-05-05
    • US555348
    • 1995-11-08
    • Alicia L. CompereWilliam L. GriffithGeorge F. DorseyBrian H. West
    • Alicia L. CompereWilliam L. GriffithGeorge F. DorseyBrian H. West
    • C10L1/32C01L1/32
    • C10L1/328
    • A method and matter of composition for controlling NO.sub.x emissions from existing diesel engines. The method is achieved by adding a small amount of material to the diesel fuel to decrease the amount of NO.sub.x produced during combustion. Specifically, small amounts, less than about 1%, of urea or a triazine compound (methylol melamines) are added to diesel fuel. Because urea and triazine compounds are generally insoluble in diesel fuel, microemulsion technology is used to suspend or dissolve the urea or triazine compound in the diesel fuel. A typical fuel formulation includes 5% t-butyl alcohol, 4.5% water, 0.5% urea or triazine compound, 9% oleic acid, and 1% ethanolamine. The subject invention provides improved emissions in heavy diesel engines without the need for major modifications.
    • 用于控制现有柴油发动机的NOx排放的方法和组成的事项。 该方法是通过向柴油燃料中加入少量材料来减少燃烧过程中产生的NOx的量来实现的。 具体地,向柴油中加入少量,少于约1%的尿素或三嗪化合物(羟甲基三聚氰胺)。 由于脲和三嗪化合物通常不溶于柴油,因此使用微乳液技术将尿素或三嗪化合物悬浮或溶解在柴油中。 典型的燃料配方包括5%叔丁醇,4.5%水,0.5%尿素或三嗪化合物,9%油酸和1%乙醇胺。 本发明在重型柴油发动机中提供改进的排放,而不需要进行主要的改进。