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    Method for reducing nitric oxide in the exhaust gas flow of internal combustion engines
    8.
    发明授权
    Method for reducing nitric oxide in the exhaust gas flow of internal combustion engines 有权
    减少内燃机废气流中一氧化氮的方法

    公开(公告)号：US08771625B2

    公开(公告)日：2014-07-08

    申请号：US12738385

    申请日：2009-09-03

    Applicant: Doering Andreas ,  Dieter Rothe

    Inventor： Doering Andreas ,  Dieter Rothe

    IPC: F01N3/00 ,  C10L1/22 ,  B01D53/56 ,  C10L1/10 ,  C10L10/02 ,  F01N3/20 ,  C10L1/12 ,  C10L1/232 ,  C10L1/228 ,  C10L1/226 ,  C10L1/222 ,  C10L1/188 ,  C10L1/224 ,  C10L1/223

    CPC classification number: F01N3/2073 ,  C10L1/10 ,  C10L1/1266 ,  C10L1/1883 ,  C10L1/22 ,  C10L1/2222 ,  C10L1/223 ,  C10L1/224 ,  C10L1/226 ,  C10L1/2283 ,  C10L1/2286 ,  C10L1/232 ,  C10L10/02 ,  F01N2430/04 ,  Y02A50/2325 ,  Y02C20/10

    Abstract: A method is described for reducing nitrogen oxides in the exhaust gas flow of combustion engines, especially a motor vehicle internal combustion engine, wherein an air/fuel mixture in the combustion chamber of the combustion engine is combusted in the presence of a fuel additive and, in the process, the fuel additive decomposes and the exhaust gas flow is guided through at least one catalyst arranged downstream of the combustion chamber. This method is characterized in that a fuel additive is used, which decomposes in the combustion chamber releasing ammonia and the exhaust gas flow containing ammonia is guided through at least one SCR catalyst arranged downstream of the combustion chamber to reduce the concentration of the nitrogen oxides contained therein. The method according to the invention is highly effective in reducing the nitrogen oxide content in the exhaust gas flow of a combustion engine without an exhaust gas aftertreatment system having to be expensively formed and the installation space having to be increased.

    Abstract translation: 描述了一种用于还原内燃机，特别是机动车辆内燃机的排气流中的氮氧化物的方法，其中燃料发动机的燃烧室中的空气/燃料混合物在燃料添加剂的存在下燃烧， 在该过程中，燃料添加剂分解并且排气流被引导通过布置在燃烧室下游的至少一个催化剂。 该方法的特征在于，使用燃料添加剂，其在燃烧室中分解释放氨，并且含有氨的排气流被引导通过布置在燃烧室下游的至少一个SCR催化剂，以减少所含的氮氧化物的浓度 其中。 根据本发明的方法，在不需要昂贵地形成排气后处理系统并且必须增加安装空间的情况下，能够有效地降低内燃机的废气流中的氮氧化物含量。

    Use of olefinic imines to scavenge sulfur species
    10.
    发明授权
    Use of olefinic imines to scavenge sulfur species 失效
    使用烯属亚胺清除硫物质

    公开(公告)号：US5567213A

    公开(公告)日：1996-10-22

    申请号：US636813

    申请日：1996-04-25

    Applicant: David R. Gentry ,  Gerald T. Pancio ,  Jerry J. Weers

    Inventor： David R. Gentry ,  Gerald T. Pancio ,  Jerry J. Weers

    IPC: C10G21/20 ,  C09K8/532 ,  C10G29/20 ,  C10L1/228 ,  C10L1/22

    CPC classification number: C10L1/2283 ,  C09K8/532 ,  C10G29/20

    Abstract: A method for scavenging sulfur species from a petroleum-derived medium is disclosed. The method comprises contacting the medium with sulfur species scavenging amount of an imine of the formula ##STR1## wherein x is an integer from 1 to 10, R' is an organic moiety having a number of valences equal to x, R.sub.1 is hydrogen or a mono-valent organic moieties and R is a mono-valent olefin moiety, provided that R and R.sub.1 contain a total of from about four to about forty carbon atoms. In an alternative embodiment, the imine is produced by a condensation reactionic between an amine having at least one primary amino group and a carbonyl of the formula ##STR2## wherein R.sub.1 is hydrogen or a mono-valent organic moieties and R is a mono-valent olefin moiety, provided that R and R.sub.1 contain a total of from about four to about forty carbon atoms. In yet other embodiments, the imine is produced by a condensation reaction between an amine having at least one primary amino group and an aldehyde having at least one alpha-hydrogen in an aldehyde to primary amino group molar ratio of at least about 2:1, are also disclosed.

    Abstract translation: 公开了一种从石油衍生的介质中清除硫物质的方法。 该方法包括使培养基与清除硫的物质接触式为式的亚胺，其中x是1至10的整数，R'是具有等于x的价数的有机部分，R 1是氢或 一价有机部分，R是一价烯烃部分，条件是R和R 1含有总共约4至约40个碳原子。 在替代实施方案中，亚胺通过具有至少一个伯氨基的胺与式有机部分的羰基之间的缩合反应产生，R是一价烯烃部分，条件是R和R 1含有 约4至约40个碳原子。 在其它实施方案中，亚胺通过具有至少一个伯氨基的胺与具有至少一个α-羟基的醛与醛与伯氨基摩尔比至少约2:1的缩合反应产生， 也被披露。

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