Reduction of No.sub.x emissions from gasoline engines
    61.
    发明授权
    Reduction of No.sub.x emissions from gasoline engines 失效
    减少汽油发动机的排放

    公开(公告)号:US5113803A

    公开(公告)日:1992-05-19

    申请号:US678649

    申请日:1991-04-01

    CPC classification number: C10L1/305 C10L10/02 F02B1/04 Y02T10/22

    Abstract: NO.sub.x emissions are reduced in two stages during operation of an engine equipped with an exhaust gas catalyst system. In the first stage, a reduction in NO.sub.x emissions is effected in the exhaust leaving the combustion chamber. In the second stage a further reduction in NO.sub.x emissions is effected in the exhaust passing through the exhaust catalyst system. Both of the two-stage reductions are brought about in the same way, namely (a) by use of a fuel composition containing at least one fuel-soluble cyclopentadienyl manganese tricarbonyl compound in an amount equivalent to up to 1/32 gram of manganese per gallon of fuel; and (b) by enhancing the NO.sub.x control activity of at least the catalyst by prior operation of the engine on such fuel composition, either intermittently or continuously. Such prior operation constitutes a run-in or conditioning stage of sufficient total duration (continuous or interrupted) so that substantial reductions in NO.sub.x emissions are thereafter continuously achieved in subsequent operation of the engine. The efficacy of the invention was demonstrated by conducting a fleet test involving 48 cars, each operated for 75,000 miles during the test. Dramatic reductions in NO.sub. x were achieved. Moreover, no significant catalyst pluggage, or increase in exhaust gas back pressure, or adverse effect upon oxygen sensors were experienced in the fleet test.

    Fuel additive comprising a metal compound and an oxime and fuel
compositions containing same
    63.
    发明授权
    Fuel additive comprising a metal compound and an oxime and fuel compositions containing same 失效
    包含金属化合物和肟的燃料添加剂和含有它的燃料组合物

    公开(公告)号:US4673412A

    公开(公告)日:1987-06-16

    申请号:US779749

    申请日:1985-09-24

    CPC classification number: C10L1/14 C10L1/2283 C10L1/305

    Abstract: A fuel composition containing a fuel additive which comprises a metal compound has been developed which fuel composition is stable upon storage. It has been discovered that a fuel additive comprising a metal compound and an oxime does not degrade a fuel, e.g. heating fuel oil, diesel fuel and the like, upon storage. Fuel additives containing metal compounds to function, e.g., as an agent to reduce soot formation and generally improve the combustion properties of the fuel may be added to fuels and stored without the build-up of gummy deposits and sludge in the storage container.

    Abstract translation: 已经开发了含有包含金属化合物的燃料添加剂的燃料组合物,该燃料组合物在储存时稳定。 已经发现,包含金属化合物和肟的燃料添加剂不会降解燃料,例如, 储存时加热燃料油,柴油燃料等。 含有金属化合物的燃料添加剂可用于例如作为减少烟灰形成和一般改善燃料燃烧性能的试剂,可以添加到燃料中并储存,而不会在储存容器中积聚胶粘沉积物和污泥。

    Fuel compositions and additive mixtures for reducing hydrocarbon
emissions
    64.
    发明授权
    Fuel compositions and additive mixtures for reducing hydrocarbon emissions 失效
    用于减少碳氢化合物排放的燃料组合物和添加剂混合物

    公开(公告)号:US4390345A

    公开(公告)日:1983-06-28

    申请号:US207371

    申请日:1980-11-17

    CPC classification number: C10L10/02 C10L1/14 C10L10/10 C10L1/1855 C10L1/305

    Abstract: Gasoline compositions and additive mixtures containing compounds having the formula: ##STR1## wherein R.sub.1 -R.sub.6 are each independently selected from hydrogen or hydrocarbyl radicals in an amount sufficient to reduce exhaust hydrocarbon emissions from an internal combustion engine being operated on gasoline containing a cyclopentadienyl manganese antiknock. Preferred hydrocarbon exhaust emission reducing compounds are 1,3-dioxolane and the lower alkyl and alkenyl substituted derivatives thereof.

    Abstract translation: 含有下式化合物的汽油组合物和添加剂混合物,其中R1-R6各自独立地选自氢或烃基,其量足以减少在含有环戊二烯基锰抗爆炸剂的汽油上操作的内燃机的排放烃排放 。 优选的烃废气排放减少化合物是1,3-二氧戊环及其低级烷基和烯基取代的衍生物。

    Combustion catalysts
    65.
    发明授权
    Combustion catalysts 失效
    燃烧催化剂

    公开(公告)号:US4265639A

    公开(公告)日:1981-05-05

    申请号:US132119

    申请日:1980-03-20

    CPC classification number: C07F15/025 C10L1/305

    Abstract: The present invention relates to a stabilized, combustion promoting fuel additive containing an iron (II) chelate and a picric acid/organic base complex. The invention further relates to stock solutions containing this additive, methods for producing the additive and fuels containing the additive.

    Abstract translation: 本发明涉及含有铁(II)螯合物和苦味酸/有机碱络合物的稳定的助燃燃料添加剂。 本发明还涉及含有这种添加剂的储备溶液,生产添加剂的方法和含有添加剂的燃料。

    Method and composition for inhibition or prevention of octane
requirement increase
    67.
    发明授权
    Method and composition for inhibition or prevention of octane requirement increase 失效
    抑制或预防辛烷值需求增加的方法和组成

    公开(公告)号:US4155718A

    公开(公告)日:1979-05-22

    申请号:US890111

    申请日:1978-03-27

    CPC classification number: C10L1/143 C10L1/1616 C10L1/2383 C10L1/305

    Abstract: The inhibition or prevention of octane requirement increase in a spark ignited internal combustion engine is achieved by introducing with the combustion charge a fuel composition containing an octane requirement increase-inhibiting amount of: (a) certain cyclomatic manganese compounds, (b) certain oil soluble aliphatic polyamines, and (c) oil of lubricating viscosity in certain range of weight ratio of (a):(b):(c).

    Abstract translation: 火花点燃式内燃机的辛烷值要求增加的抑制或预防是通过向燃烧装置中引入包含辛烷值增加抑制量的燃料组合物来实现的:(a)某些环状锰化合物,(b)某些油溶性 脂肪族多胺,(c)润滑粘度在(a):( b):( c)的一定重量比范围内的油。

    Iron-containing motor fuel compositions and method for using same
    68.
    发明授权
    Iron-containing motor fuel compositions and method for using same 失效
    含铁机动车燃料组合物及其使用方法

    公开(公告)号:US4104036A

    公开(公告)日:1978-08-01

    申请号:US664731

    申请日:1976-03-08

    CPC classification number: C10L10/10 C10L1/14 C10L1/1811 C10L1/1822 C10L1/305

    Abstract: An improved fuel composition comprising a major amount of hydrocarbons boiling in the gasoline boiling range, a minor amount of at least one hydrocarbon soluble compound of a metal selected from the group consisting of Group VIII metals and mixtures thereof capable of improving the octane number rating of the composition, a minor amount of at least one aliphatic alcohol containing from about 1 to about 8 carbon atoms per molecule; and a minor amount of at least one organic peroxy component containing from about 1 to about 20 carbon atoms per molecule wherein the compound and the combination of alcohol and peroxy component are present in mutually activating amounts to improve the octane number rating of the fuel composition.An improved method for fueling an internal combustion engine using the composition described above is also disclosed.

    Abstract translation: 一种改进的燃料组合物,其包含在汽油沸程范围内沸腾的主要量的烃,少量至少一种选自第VIII族金属的金属的烃溶性化合物及其能够提高辛烷值等级的混合物 组合物,每分子含有约1至约8个碳原子的少量至少一种脂族醇; 和少量至少一种每分子含有约1至约20个碳原子的有机过氧组分,其中化合物和醇和过氧组分的组合以相互活化的量存在,以改善燃料组合物的辛烷值等级。

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