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139 条记录 (耗时 0.038 秒)

    Preparing synthesis gas using hydrotalcite-derived nickel catalysts
    64.
    发明授权
    Preparing synthesis gas using hydrotalcite-derived nickel catalysts 失效
    使用水滑石衍生的镍催化剂制备合成气

    公开(公告)号：US06953488B2

    公开(公告)日：2005-10-11

    申请号：US10388154

    申请日：2003-03-13

    申请人： Alakananda Bhattacharyya ,  Wen-Dong Chang

    发明人： Alakananda Bhattacharyya ,  Wen-Dong Chang

    IPC分类号： B01J23/00 ,  B01J23/755 ,  B01J35/02 ,  B01J37/08 ,  C01B3/40 ,  C10G11/02 ,  C10G57/00 ,  C01B3/32

    CPC分类号： C10G57/00 ,  B01J23/007 ,  C01B3/40 ,  C01B2203/1011 ,  C01B2203/1041 ,  C01B2203/1047 ,  C01B2203/1052 ,  C01B2203/1064 ,  C01B2203/1076 ,  C01B2203/1082 ,  Y02P20/52

    摘要： There is provided a process for preparation of synthesis gas from feedstocks containing methane and/or higher hydrocarbons having from about 2 to about 12 carbon atoms by an initial catalytic treatment of feedstock to provide a methane-containing gaseous mixture substantially free of compounds having 2 or more carbon atoms, and reforming the gaseous mixture at elevated temperatures using nickel-containing catalytic materials that are unusually active under mild conditions of conversion and resistant to deactivation. The process consists fundamentally in converting the higher hydrocarbon compounds to form the methane-containing gaseous mixture in an initial conversion zone containing a catalyst while controlling temperatures within the initial conversion zone to temperatures in a range downward from about 500° C. to about 300° C., and reforming the methane-containing gaseous mixture in a subsequent zone to form synthesis gas.

    摘要翻译： 提供了一种通过原料的初始催化处理从含有甲烷和/或具有约2至约12个碳原子的甲烷和/或高级烃的原料制备合成气的方法，以提供基本上不含化合物的含甲烷的气体混合物，其具有2或 更多的碳原子，并且在升高的温度下使用在温和的转化条件下具有异常活性且耐失活的含镍催化材料重整气态混合物。 该方法基本上是在含有催化剂的初始转化区中转化高级烃化合物形成含甲烷的气态混合物，同时将初始转化区内的温度控制在约500℃至约300℃的范围内的温度 并在随后的区域中重整含甲烷气体混合物以形成合成气。

    Process for abatement of nitrogen oxides in exhaust from gas turbine power generation
    67.
    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

    申请人： Alakananda Bhattacharyya ,  Arunabha Basu

    发明人： Alakananda Bhattacharyya ,  Arunabha Basu

    IPC分类号： B01D53/56 ,  C01B3/32 ,  C01B3/38 ,  F02C3/22 ,  F02C3/30 ,  F02C7/26 ,  F02B43/00

    CPC分类号： C01B3/326 ,  C01B3/323 ,  F02C3/30 ,  C01B2203/1047 ,  C01B2203/1052 ,  C01B2203/1076 ,  Y02P20/52 ,  Y02T10/16

    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 for hydroshifting dimethyl ether
    68.
    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

    申请人： Alakananda Bhattacharyya ,  Arunabha Basu

    发明人： Alakananda Bhattacharyya ,  Arunabha Basu

    IPC分类号： C01B3/38 ,  C01B3/32 ,  F02C3/22 ,  C07C1/00 ,  C07C1/02

    CPC分类号： C01B3/326 ,  C01B3/323 ,  C01B2203/1047 ,  C01B2203/1052 ,  C01B2203/1076 ,  Y02P20/52

    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。