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    • 8. 发明授权
    • Graded palladium-containing partial combustion catalyst
    • 分级含钯部分燃烧催化剂
    • US5258349A
    • 1993-11-02
    • US617973
    • 1990-11-26
    • Ralph A. Dalla BettaKazunori TsurumiToru Shoji
    • Ralph A. Dalla BettaKazunori TsurumiToru Shoji
    • B01J23/44B01J35/00F23C13/00B01J21/06B01J23/66B01J35/04
    • F23C13/00B01J23/44B01J35/0006
    • This invention is a graded catalyst comprising palladium and also a partial combustion process in which the fuel is partially combusted using that catalyst. The catalyst utilizes a catalytic support structure suitable for high flow rates of combustible gas mixtures through it. The catalyst is situated on the support so that in the flowing gas stream a leading portion of the support has a higher combustion activity, such as by a higher concentration of catalytic metal, than has the trailing portion. The combination of graded catalyst and support provides a low "light off" temperature for the combustible gas (only a low preheat temperature is needed to cause the combustion reaction to begin) and yet does not cause "hot spots" to occur because of excess activity. The combustion gas produced by the catalytic process may be at a temperature below the adiabatic combustive temperature, may be used at that temperature, or fed to other combustion stages for further use in a gas turbine, furnace, boiler, or the like.
    • 本发明是一种包含钯的分级催化剂,也是使用该催化剂将燃料部分燃烧的部分燃烧过程。 该催化剂使用适合于通过其的可燃气体混合物的高流速的催化支撑结构。 催化剂位于载体上,使得在流动的气流中,载体的引导部分具有比具有后部的更高的燃烧活性,例如通过较高浓度的催化金属。 分级催化剂和载体的组合为可燃气体提供低的“轻度关闭”温度(仅需要低预热温度才能使燃烧反应开始),并且不会由于过量的活性而引起“热点” 。 通过催化过程产生的燃烧气体可能处于低于绝热燃烧温度的温度,可以在该温度下使用,或者进料到其它燃烧阶段,以进一步用于燃气轮机,炉,锅炉等。
    • 9. 发明授权
    • Graded palladium-containing partial combustion catalyst and a process
for using it
    • 分级含钯部分燃烧催化剂及其使用方法
    • US5248251A
    • 1993-09-28
    • US856462
    • 1992-03-24
    • Ralph A. Dalla BettaKazunori TsurumiToru Shoji
    • Ralph A. Dalla BettaKazunori TsurumiToru Shoji
    • B01J23/44B01J35/00F23C13/00
    • F23C13/00B01J23/44B01J35/0006
    • This invention is a graded catalyst comprising palladium and also a partial combustion process in which the fuel is partially combusted using that catalyst. The catalyst utilizes a catalytic support structure suitable for high flow rates of combustible gas mixtures through it. The catalyst is situated on the support so that in the flowing gas stream a leading portion of the support has a higher combustion activity, such as by a higher concentration of catalytic metal, than has the trailing portion. The combination of graded catalyst and support provides a low "light off" temperature for the combustible gas (only a low preheat temperature is needed to cause the combustion reaction to begin) and yet does not cause "hot spots" to occur because of excess activity. The combustion gas produced by the catalytic process may be at a temperature below the adiabatic combustive temperature, may be used at that temperature, or fed to other combustion stages for further use in a gas turbine, furnace, boiler, or the like.
    • 本发明是一种包含钯的分级催化剂,也是使用该催化剂将燃料部分燃烧的部分燃烧过程。 该催化剂使用适合于通过其的可燃气体混合物的高流速的催化支撑结构。 催化剂位于载体上,使得在流动的气流中,载体的引导部分具有比具有后部的更高的燃烧活性,例如通过较高浓度的催化金属。 分级催化剂和载体的组合为可燃气体提供低的“轻度关闭”温度(仅需要低预热温度才能使燃烧反应开始),并且不会由于过量活性而引起“热点” 。 通过催化过程产生的燃烧气体可能处于低于绝热燃烧温度的温度,可以在该温度下使用,或者进料到其它燃烧阶段,以进一步用于燃气轮机,炉,锅炉等。