Method for the prevention of high temperature corrosion due to alkali sulfates and chlorides and composition for use in the same
    3.
    发明授权
    Method for the prevention of high temperature corrosion due to alkali sulfates and chlorides and composition for use in the same 有权
    用于防止碱金属硫酸盐和氯化物引起的高温腐蚀的方法及其用途

    公开(公告)号:US06328911B1

    公开(公告)日:2001-12-11

    申请号:US09505007

    申请日:2000-02-15

    Inventor: Keith Schofield

    Abstract: An additive to a flame reaction is provided which forms noncorrosive deposits on cooler metal surfaces which are more stable than Na2SO4 or K2SO4. The additive preferentially combines with the sodium or potassium, and sulfates of these will not be formed. By adding tungsten, tungsten salts or tungsten percursors to the flame, a complex sodium tungstate is produced on the surface of the cooler metal object in a dense form and corrosion is inhibited. The level of tungsten preferably present at an atomic concentration is equal to 1.5 to 2 times that of the sodium in the specific flame environment and possibly a little higher for potassium. The nature of the fuel and possible alkali reduction schemes will control the quantity and mixing method of the additive. The additive may be directly mixed into the fuel or injected into the burned gas regions of the combustion, Ta and Nb also appear as possible substitutes for W in the invention.

    Abstract translation: 提供了一种火焰反应添加剂,其在较冷的金属表面上形成非腐蚀性沉积物,其比Na 2 SO 4或K 2 SO 4更稳定。 添加剂优先与钠或钾结合,并且不会形成这些的硫酸盐。 通过向火焰中加入钨,钨盐或钨的外观,在较冷的金属物体的表面上以致密的形式产生复合的钨酸钠,并且腐蚀被抑制。 优选以原子浓度存在的钨的水平等于特定火焰环境中钠的1.5至2倍,并且可能稍高于钾。 燃料的性质和可能的碱还原方案将控制添加剂的数量和混合方法。 添加剂可以直接混合到燃料中或注入燃烧的燃烧气体区域中,在本发明中,Ta和Nb也可能代替W。

    Fuel compositions containing iron pentacarbonyl
    6.
    发明授权
    Fuel compositions containing iron pentacarbonyl 失效
    含有五羰基铁的燃料组合物

    公开(公告)号:US4336033A

    公开(公告)日:1982-06-22

    申请号:US272500

    申请日:1981-06-11

    Inventor: James B. Hinkamp

    CPC classification number: C10L10/08 C10L1/1241 C10L10/10

    Abstract: An improved fuel composition comprising a major amount of hydrocarbons boiling in the gasoline boiling range, and a minor amount of iron pentacarbonyl capable of improving the octane number rating of the composition but insufficient to cause excessive wear in engine parts when the fuel composition is burned in an internal combustion engine.

    Abstract translation: 一种改进的燃料组合物,其包含主要量的在汽油沸程范围内沸腾的烃,和少量铁五羰基铁,能够提高组合物的辛烷值等级,但当燃料组合物燃烧时不足以引起发动机部件中的过度磨损 内燃机

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