Process for hydroshifting dimethyl ether
    2.
    发明授权
    Process for hydroshifting dimethyl ether 失效
    氢化二甲醚的方法

    公开(公告)号:US5498370A

    公开(公告)日:1996-03-12

    申请号:US356492

    申请日:1994-12-15

    摘要: A process for hydroshifting dimethyl ether is described which comprises passing a feed stream which includes dimethyl ether and steam to a hydroshifting reaction zone including an essentially alkali metal-free catalytic composition substantially composed of copper or nickel in elemental form. The process produces a hydroshifted product stream which is relatively rich in hydrogen, carbon monoxide, and carbon dioxide.The feed stream can be transported relatively easily in liquid form at comparatively low pressures. The hydroshifting reaction zone can include a hydrolysis reaction zone and a water-gas shift reaction zone. The hydrolyzed product and the water-gas shift product can be recovered to obtain hydrogen and carbon dioxide, respectively. Additionally, the hydroshifted product stream can be blended with an oxidizing stream and combusted to drive a turbine in order to generate mechanical energy.

    摘要翻译: 描述了一种用于氢化二甲醚的方法,其包括将包括二甲醚和蒸汽的进料流传送到包含基本上不含碱金属的催化剂组合物的水移动反应区,所述催化组合物基本上由元素形式的铜或镍组成。 该方法产生氢转移产物流,其相对富含氢,一氧化碳和二氧化碳。 进料流可以在相当低的压力下相对容易地以液体形式输送。 加氢反应区可包括水解反应区和水煤气变换反应区。 可以回收水解产物和水煤气变换产物以分别获得氢气和二氧化碳。 此外,氢化转化产物流可与氧化流混合并燃烧以驱动涡轮以产生机械能。

    Liquefaction of decarboxylated carbonaceous solids
    3.
    发明授权
    Liquefaction of decarboxylated carbonaceous solids 失效
    脱羧碳质固体的液化

    公开(公告)号:US5228982A

    公开(公告)日:1993-07-20

    申请号:US689192

    申请日:1991-04-22

    IPC分类号: C10G1/00

    CPC分类号: C10G1/006 C10G1/00

    摘要: A composition consisting essentially of a carbonaceous solid containing at least one carboxyl group is heated with subcritical liquid water at decarboxylation conditions including a temperature of at least about 300.degree. F. to substantially decarboxylate the solid, thereby producing a stream comprising a decarboxylated solid and water. The water is separated from the decarboxylated solid prior to liquefying the solid.

    摘要翻译: 基本上由含有至少一个羧基的含碳固体组成的组合物在脱羧条件下,在包括至少约300°F的温度的脱羧条件下加热,使固体基本脱羧,从而产生包含脱羧固体和水 。 在液化固体之前,将水与脱羧固体分离。

    Fuels for diesel engines
    7.
    发明授权
    Fuels for diesel engines 失效
    柴油发动机燃料

    公开(公告)号:US5906664A

    公开(公告)日:1999-05-25

    申请号:US48397

    申请日:1998-03-26

    IPC分类号: C10L1/32 C10L1/02 C10L1/10

    CPC分类号: C10L1/328

    摘要: The invention relates to high energy, oxygenated fuel compositions suitable for use in compression ignition internal combustion engines which fuel compositions contain a synergistic combination of dimethyl ether, methanol, and water, the combination providing a single liquid phase with good ignition characteristics. More particularly fuels comprising from about 72 to about 95 weight percent of dimethyl ether, from about 0.1 to about 20 weight percent of methanol, and from about 0.1 to about 20 weight percent of water are disclosed.

    摘要翻译: 本发明涉及适用于压燃式内燃机的高能,含氧燃料组合物,该燃料组合物含有二甲醚,甲醇和水的协同组合,该组合提供具有良好点燃特性的单一液相。 更具体地,公开了包含约72至约95重量%的二甲醚,约0.1至约20重量%的甲醇和约0.1至约20重量%的水的燃料。

    Process for abatement of nitrogen oxides in exhaust from gas turbine
power generation
    8.
    发明授权
    Process for abatement of nitrogen oxides in exhaust from gas turbine power generation 失效
    减少燃气轮机发电废气中氮氧化物的方法

    公开(公告)号:US5740667A

    公开(公告)日:1998-04-21

    申请号:US701387

    申请日:1996-08-22

    摘要: Emissions of nitrogen oxides in exhaust from gas turbine systems are reduced, in accordance with the invention, by introducing, into the combustor, a supplementary gaseous stream comprising dihydrogen, carbon monoxide and carbon dioxide, and a stream of gaseous fuel and/or mixtures thereof, with a source of dioxygen to form a combustible gaseous mixture; combusting the mixture to produce heat and a combustion product stream; and driving a turbine with the combustion product stream to produce an exhaust stream and to generate mechanical power. Supplementary gaseous streams are, advantageously, formed by a process for hydroshifting dimethyl ether, i.e. formed by a process which comprises passing a feed stream which includes dimethyl ether and steam to a hydroshifting, reaction zone including an essentially alkali metal-free catalytic composition substantially composed of copper or nickel in elemental form. This process produces a hydroshifted product stream which is, advantageously, relatively rich in dihydrogen, carbon monoxide, and carbon dioxide.

    摘要翻译: 根据本发明,通过将包含二氢,一氧化碳和二氧化碳的气态物流和/或其混合物的辅助气流引入燃烧室,减少了来自燃气轮机系统的排气中的氮氧化物的排放 与二氧源形成可燃气体混合物; 燃烧混合物以产生热量和燃烧产物流; 并且用燃烧产物流驱动涡轮以产生排气流并产生机械动力。 补充的气流有利地通过用于将二甲醚加氢的方法形成,即通过包括将包含二甲醚和蒸汽的进料流通入包含基本上不含碱金属的催化剂组合物的液力转移反应区的方法形成的方法 的铜或镍元素形式。 该方法产生氢转移产物流,其有利地是相对富含二氢,一氧化碳和二氧化碳。

    Process and fuel for spark ignition engines
    9.
    发明授权
    Process and fuel for spark ignition engines 失效
    火花点火发动机的工艺和燃料

    公开(公告)号:US5632786A

    公开(公告)日:1997-05-27

    申请号:US528119

    申请日:1995-09-14

    CPC分类号: C10L1/023

    摘要: A method is described for operating a spark ignition internal combustion engine utilizing an improved composition containing dimethyl ether and propane as fuel. An engine incorporating the invention produces a lesser amount of certain atmospheric pollutants, such as carbon monoxide and unburned hydrocarbons, as compared to the amount of pollutants produced when the engine is operated at identical conditions with propane as fuel. Also described is an improved fuel composition which exhibits a lower vapor pressure than, for example, propane and, therefore, is relatively easier to liquefy and transport.

    摘要翻译: 描述了一种利用包含二甲醚和丙烷作为燃料的改进组合物来操作火花点火内燃机的方法。 与发动机在与丙烷作为燃料相同的条件下操作的污染物的量相比,结合本发明的发动机产生较少量的某些大气污染物,例如一氧化碳和未燃烧的烃。 还描述了一种改进的燃料组合物,其表现出比例如丙烷更低的蒸气压,因此相对更容易液化和运输。

    Process for hydroshifting dimethyl ether
    10.
    发明授权
    Process for hydroshifting dimethyl ether 失效
    氢化二甲醚的方法

    公开(公告)号:US5626794A

    公开(公告)日:1997-05-06

    申请号:US597209

    申请日:1996-02-06

    摘要: A process for hydroshifting dimethyl ether is described which comprises passing a feed stream which includes dimethyl ether and steam to a hydroshifting reaction zone including an essentially alkali metal-free catalytic composition substantially composed of copper or nickel in elemental form. The process produces a hydroshifted product stream which is relatively rich in hydrogen, carbon monoxide, and carbon dioxide.The feed stream can be transported relatively easily in liquid form at comparatively low pressures. The hydroshifting reaction zone can include a hydrolysis reaction zone and a water-gas shift reaction zone. The hydrolyzed product and the water-gas shift product can be recovered to obtain hydrogen and carbon dioxide, respectively. Additionally, the hydroshifted product stream can be blended with an oxidizing stream and combusted to drive a turbine in order to generate mechanical energy.

    摘要翻译: 描述了一种用于氢化二甲醚的方法,其包括将包括二甲醚和蒸汽的进料流传送到包含基本上不含碱金属的催化剂组合物的水移动反应区,所述催化组合物基本上由元素形式的铜或镍组成。 该方法产生氢转移产物流,其相对富含氢,一氧化碳和二氧化碳。 进料流可以在相当低的压力下相对容易地以液体形式输送。 加氢反应区可包括水解反应区和水煤气变换反应区。 可以回收水解产物和水煤气变换产物以分别获得氢气和二氧化碳。 此外,氢化转化产物流可与氧化流混合并燃烧以驱动涡轮以产生机械能。