Gasoline additives for catalytic control of emissions from combustion
engines
    2.
    发明授权
    Gasoline additives for catalytic control of emissions from combustion engines 失效
    用于催化控制内燃机排放物的汽油添加剂

    公开(公告)号:US6152972A

    公开(公告)日:2000-11-28

    申请号:US38426

    申请日:1993-03-29

    IPC分类号: C10L1/12 C10L1/30 C10L10/00

    摘要: Catalytic metal additives that directly dissolve in gasoline in concentrations providing efficient and economical three-way catalysis of exhaust gases from internal combustion engines. The additives are compounds of noble (e.g., Pt, Pd, Au and Rh) or non-noble (e.g., Re) metals. The preferred compounds have polar metal ligand bonds, preferably with inorganic ligands such as halogens, oxygen, etc., and/or salts with highly ionic (polarizable) cations such as of alkali metals. The preferred additive is a combination of X.sub.2 PtCl.sub.6, RhCl.sub.3 and XReO.sub.4, where X=K, Rh or Cs. A combination of these finely ground materials is fabricated into a briquette or filter which is deposited in the gas tank or placed in a gas line. The catalytic metals are carried by the exhaust gases through the exhaust system where they are deposited on surfaces of the system to convert toxic emissions. In this way, the invention allows for the delivery of efficient gasoline additives without the use of solvents or extraneous agents.

    摘要翻译: 直接溶于汽油的催化金属添加剂,其浓度为内燃机排气提供了有效和经济的三元催化作用。 添加剂是贵金属(例如Pt,Pd,Au和Rh)或非贵金属(例如Re)金属的化合物。 优选的化合物具有极性金属配体键,优选具有无机配体如卤素,氧等,和/或与高离子(可极化)阳离子如碱金属的盐。 优选的添加剂是X2PtCl6,RhCl3和XReO4的组合,其中X = K,Rh或Cs。 将这些精细研磨的材料的组合制成沉积在气罐中或放置在气体管线中的团块或过滤器。 催化金属由废气通过排气系统运送,在那里它们沉积在系统的表面上以转化有毒排放物。 以这种方式,本发明允许在不使用溶剂或外来物质的情况下递送有效的汽油添加剂。