Additive for a fuel to neutralize sulfur dioxide and/or sulfur trioxide in the exhaust gases
    11.
    发明授权
    Additive for a fuel to neutralize sulfur dioxide and/or sulfur trioxide in the exhaust gases 失效
    燃料用于中和废气中的二氧化硫和/或三氧化硫的添加剂

    公开(公告)号:US06200358B1

    公开(公告)日:2001-03-13

    申请号:US09296661

    申请日:1999-04-23

    CPC classification number: C10L1/188 B01D53/50 C10L1/12 C10L1/30 C10L10/02

    Abstract: The present invention relates to an additive for a fuel for the neutralization of SO2 and/or SO3 in the exhaust gases of internal combustion engines operated with the fuel, and a method for the neutralization of SO2 and/or SO3 in the exhaust gases of internal combustion engines. According to the invention, the additive contains one or more metal compounds soluble in the fuel. In the combustion of the fuel these compounds form stable sulfates which are present in solid particles in the exhaust gas. The method of the invention is characterized in that one or more of these additives are added to the fuel and the combustion of the fuel takes place in an oxidizing atmosphere.

    Abstract translation: 本发明涉及一种燃料添加剂,用于中和燃料操作的内燃机废气中的SO2和/或SO3,以及用于中和内部废气中的SO2和/或SO3的方法 内燃机 根据本发明,添加剂含有一种或多种可溶于燃料的金属化合物。 在燃料燃烧中,这些化合物形成稳定的硫酸盐,其存在于废气中的固体颗粒中。 本发明的方法的特征在于将这些添加剂中的一种或多种添加到燃料中,燃料的燃烧在氧化气氛中进行。

    High reactivity fuels for supersonic combustion ramjets
    16.
    发明授权
    High reactivity fuels for supersonic combustion ramjets 失效
    超音速燃烧雷击的高反应性燃料

    公开(公告)号:US3883376A

    公开(公告)日:1975-05-13

    申请号:US35774873

    申请日:1973-05-07

    Applicant: US NAVY

    CPC classification number: C10L1/301 C10L1/00 C10L1/30

    Abstract: The invention relates to highly reactive fuel compositions primarily intended for supersonic combustion ramjet engines. In particular, the invention provides highly reactive fuel compositions capable of efficient oxidation and thrust production even within the low combustor residence time of a supersonic combustion ramjet engine. The fuel compositions comprise specific blends of a major fuel component and an additive which, on pyrophoric combustion thereof, produces sufficient heat energy to spontaneously ignite and burn the major fuel component at a substantially increased rate.

    Abstract translation: 本发明涉及主要用于超音速燃烧冲压喷气发动机的高反应性燃料组合物。 特别地,本发明提供即使在超音速燃烧式冲压式喷气发动机的低燃烧器停留时间内能够有效氧化和推力生产的高反应性燃料组合物。 燃料组合物包括主要燃料组分和添加剂的特定混合物,其在其自燃燃烧时产生足够的热能以显着增加的速率自发点燃和燃烧主要燃料组分。

    Process of reacting aromatic group vi-b metal tricarbonyls with a ligand
    17.
    发明授权
    Process of reacting aromatic group vi-b metal tricarbonyls with a ligand 失效
    用配子反应芳族化合物VI-B金属三氯乙烯的方法

    公开(公告)号:US3519668A

    公开(公告)日:1970-07-07

    申请号:US3519668D

    申请日:1967-09-13

    Applicant: ETHYL CORP

    Abstract: Aromatic compound-Group VIB metal tricarbonyl complexes are prepared by reacting an aromatic compound with a Group VIB metal hexacarbonyl in a polar solvent. (Deming's revised Periodic Table is used throughout). Solvents specified include tetrahydrofuran, ethylene glycol dimethyl and diethyl ethers, diethylene glycol diethyl and dibutyl ethers, ethylene glycol monomethyl and monoethyl ethers, isoamyl alcohol, methyl alcohol, ethyl acetate, amyl acetate, acetic acid, dimethylformamide and acetonitrile. The reaction is facilitated by the presence on the aromatic ring of electron-repelling substitutents such as dimethylamino, methoxy, butoxy, ethoxy, substituted and unsubstituted amines, hydroxyl and alkyl groups. These substituents should have a meta sigma constant (as defined) less than +0.50. A list of typical complexes which may be prepared is given. The aromatic residue in the complex may be reacted to produce aromatic derivative complexes, thus hydroxybenzene chromium tricarbonyl can be methylated or acetylated to the anisole and phenylacetate derivatives, aniline complexes may be converted to acetanilide complexes and complexes such as benzoic acid chromium tricarbonyl and phenylacetic acid chromium tricarbonyl can be prepared by alkaline hydrolysis of the corresponding esters. Where the aromatic ring is substituted, the substituents are more easily displaced by nucleophilic reagents than they are in the parent compound. Further the aromatic residue may be regenerated from the complex by thermal decomposition, by reaction with a more powerful ligand such as pyridine, triphenyl-phosphine, dimethyl-phenylarsine or other p-electron donors, or by reaction with carbon monoxide. Thus in Example XIV, chlorobenzene is reacted with chromium hexacarbonyl in dioxane to give chlorobenzene chromium tricarbonyl, which is reacted with sodium hydroxide and then with carbon monoxide to give phenol, chlorobenzene and chromium hexacarbonyl, Ex. XV describes the reaction of o-toluidine chromium tricarbonyl with carbon monoxide to give o-toluidine and chromium hexacarbonyl, and Ex. XVI the regeneration of p-dimethoxy benzene from p-dimethoxybenzene chromium tricarbonyl which was prepared from p-chloroanisole chromium tricarbonyl and sodium methoxide in tetrahydrofuran. Tris - (dimethylphenylarsine) chromium tricarbonyl is prepared (Ex. X) by reacting methylbenzene chromium tricarbonyl with dimethylphenylarsine, methylbenzene being regenerated.ALSO:Aromatic compound-Group VIb metal (Deming) tricarbonyl complexes may be used as additives to hydrocarbon fuels and lubricating oils. Typical compounds are benzene chromium tricarbonyl, o-cresyl methyl ether chromium tricarbonyl, acetophenone chromium tricarbonyl-many others are specified. When used as antiknock agents, scavengers (phosphorus compounds, halohydrocarbons), deposit modifying agents containing phosphorus or boron and other antiknock agents, e.g. tetraethyl lead, may also be present.ALSO:Aromatic compound-Group VIb (Deming) metal tricarbonyl complexes may be decomposed at above 400 DEG C. by heating in an inert atmosphere e.g. argon in order to deposit a film of the metal on a support such as glass, glass cloth, resins or other insulating materials. The deposition of chromium upon a glass cloth band by decomposition of benzene chromium tricarbonyl is described.

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