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    • 1. 发明授权
    • Combined heat and power plant and a process for the operation thereof
    • 联合热电厂及其运行过程
    • US06923948B2
    • 2005-08-02
    • US10109152
    • 2002-03-27
    • Frank BaumannStefan WielandPeter BritzKlaus Heikrodt
    • Frank BaumannStefan WielandPeter BritzKlaus Heikrodt
    • C01B3/38H01M8/04H01M8/06C01B3/26
    • H01M8/0612H01M8/0662Y02P70/56
    • The invention provides a combined heat and power plant with an integrated gas production system. The combined heat and power plant contains a steam reformer heated with a gas burner which converts a mixture of hydrocarbons and water vapour into a reformate gas stream containing hydrogen and carbon monoxide. The plant further contains a reactor system with several stages for removing carbon monoxide from the reformate gas stream. The plant also contains a heat exchanger for removing heat energy from the reformate gas stream and a fuel cell unit for producing electrical energy by catalytic reaction of the hydrogen contained in the reformate gas with oxygen in the fuel cell, wherein the reformate gas stream is supplied to the anode in the fuel cell unit and the anode waste gas is taken to the gas burner of the steam reformer as fuel, via a gas pipe. The reactor system for removing carbon monoxide from the reformate gas stream contains, according to one embodiment of the invention, a low temperature shift reactor and a downstream methanisation reactor and the heat exchanger for cooling the reformate gas stream leaving the steam reformer to the inlet temperature of the low temperature shift reactor is located in the reformate gas stream between the steam reformer and the low temperature shift reactor. This combined heat and power plant is operated according to the invention in such a way that the reformate gas contains 5 to 10 vol. % of unreformed hydrocarbon which enables the flame in the gas burner to be monitored using an ionisation detector when burning the anode waste gas in the gas burner of the steam reformer.
    • 本发明提供了一种具有集成气体生产系统的组合式热电厂。 组合的热电厂包含用气体燃烧器加热的蒸汽重整器,其将烃和水蒸汽的混合物转化为含有氢和一氧化碳的重整产品气流。 该设备还包含一个反应器系统,其具有几个阶段用于从重整产品气流中除去一氧化碳。 该设备还包含用于从重整产品气流中除去热能的热交换器和用于通过燃料电池中重整气体中所含的氢气与氧气的催化反应来产生电能的燃料电池单元,其中重整气流被供应 到燃料电池单元中的阳极,并且通过气体管将阳极废气作为燃料被带到蒸汽重整器的气体燃烧器。 根据本发明的一个实施方案,用于从重整产品气流中除去一氧化碳的反应器系统包含低温变换反应器和下游甲烷化反应器,以及用于将离开蒸汽重整器的重整产品气流冷却至入口温度的热交换器 的低温变换反应器位于蒸汽重整器和低温变换反应器之间的重整产品气流中。 根据本发明,这种组合的热电厂是以重整气体含有5〜10vol。 %的未重整烃,当燃烧蒸汽重整器的气体燃烧器中的阳极废气时,能够使用电离检测器监测气体燃烧器中的火焰。
    • 2. 发明授权
    • Catalyst for autothermal reforming of hydrocarbons with increased water gas shift activity
    • 具有增加的水煤气变换活性的烃的自热重整催化剂
    • US07150866B2
    • 2006-12-19
    • US10644377
    • 2003-08-20
    • Stefan WielandFrank Baumann
    • Stefan WielandFrank Baumann
    • C01B3/40B01J23/40B01J23/42B01J23/46
    • B01J23/464B01J23/40B01J37/0244C01B3/382C01B3/40C01B2203/0244C01B2203/0283C01B2203/0844C01B2203/1005C01B2203/1047C01B2203/1064C01B2203/142C01B2203/82H01M8/0612Y02P20/52
    • The invention relates to a catalyst and a process for the autothermal, catalytic steam reforming of hydrocarbons using the catalyst. The catalyst has a multilayer structure and comprises a lower catalyst layer located directly on a support body and an upper catalyst layer located on the lower catalyst layer, with the lower catalyst layer preferentially catalysing the partial oxidation and the upper catalyst layer preferentially catalysing steam reforming. In a further embodiment, a three-layer catalyst having a further catalyst layer for the carbon monoxide conversion (water gas shift reaction) is described. Each catalyst layer comprises at least one platinum group metal on an oxidic support material.The steam reforming process is carried out in an adiabatic process by passing a feed mixture of hydrocarbons, oxygen and water or water vapour which has been heated to a preheating temperature over the multilayer catalyst.Catalyst and process are used for producing hydrogen-containing fuel gases in reformer systems, preferably for fuel cells.
    • 本发明涉及使用催化剂的烃的自热,催化蒸汽重整的催化剂和方法。 催化剂具有多层结构,并且包括直接位于支撑体上的下催化剂层和位于下催化剂层上的上催化剂层,下催化剂层优先催化部分氧化,上催化剂层优先催化蒸汽重整。 在另一个实施方案中,描述了具有用于一氧化碳转化的另一催化剂层(水煤气变换反应)的三层催化剂。 每个催化剂层在氧化载体材料上包含至少一种铂族金属。 蒸汽重整过程通过将已被加热到预热温度的烃,氧气和水或水蒸汽的进料混合物通过多层催化剂进行,在绝热过程中进行。 催化剂和方法用于在重整器系统中生产含氢燃料气体,优选用于燃料电池。
    • 6. 发明授权
    • Process for preparing a low-sulfur reformate gas for use in a fuel cell system
    • 制备用于燃料电池系统的低硫重整气体的方法
    • US07198862B2
    • 2007-04-03
    • US10172570
    • 2002-06-13
    • Frank BaumannStefan Wieland
    • Frank BaumannStefan Wieland
    • C01B3/26H01M8/04
    • B01D53/8603
    • The invention provides a multistep process for preparing a low-sulfur reformate gas for use in a fuel cell system. The process comprises catalytic steam reforming of a reactant gas mixture comprising sulfur-containing hydrocarbons and steam in a first step to make a reformate, reducing the carbon monoxide content of the reformate in a second step, passing the reformate over a sulfur absorber either directly after the first step or after passage through the second step, and desorbing the sulfur components optionally absorbed on the catalysts in the reforming and reducing process steps by periodically raising the temperature so as to cause the sulfer components to pass to the absorber, wherein the temperature of the absorber during operation of the process is always kept within a temperature interval which is an optimum for the absorber.
    • 本发明提供一种制备用于燃料电池系统的低硫重整气体的多步法。 该方法包括在第一步骤中包含含硫烃和蒸汽的反应气体混合物的催化蒸汽重整,以制备重整油,在第二步中减少重整产物的一氧化碳含量,使重整产物直接在 通过第二步骤的第一步骤或通过第二步骤之后,通过周期性地升高温度以使硫化物组分进入吸收器,在重整和还原过程步骤中任选地吸附在催化剂上的硫组分解吸,其中温度 过程运行过程中的吸收器始终保持在吸收器最佳的温度区间内。
    • 10. 发明授权
    • Process for producing carboxylic acid esters and catalysts therefor
    • 制备羧酸酯及其催化剂的方法
    • US5922900A
    • 1999-07-13
    • US922558
    • 1997-09-03
    • Stefan WielandPeter Panster
    • Stefan WielandPeter Panster
    • B01J31/06C07B61/00C07C67/08C07C69/14C07C69/80C07C67/00C08G77/00C08G79/00
    • C07C67/08
    • A process for producing carboxylic acid esters by the following steps:a) preparation of a reaction mixture containing an alcohol and a carboxylic acid and/or a carboxylic anhydride and/or a carboxylic acid ester and or a partially esterified carboxylic acid,b) heating of this mixture to the suitable reaction temperature in the presence of a solid polysiloxane insoluble in the reaction medium and having sulphonic acid groups with intensive thorough mixing accompanied by continuous separation of the reaction water which forms, wherein the polysiloxane used as the catalyst in modified by treatment with a soluble aluminum, titanium or zirconium compound, and the spherical particles thereof have a diameter of 0.01 to 3 mm, a specific surface of 0.1 to 1200 m.sup.2 /g, a specific pore volume of 0.01 to 6.0 ml/g and a bulk density of 50 to 1000 g/l.
    • 一种通过以下步骤制备羧酸酯的方法:a)制备含有醇和羧酸和/或羧酸酐和/或羧酸酯和/或部分酯化的羧酸的反应混合物,b)加热 该混合物在不溶于反应介质的固体聚硅氧烷存在下具有适当的反应温度,并且具有强烈浓缩的磺酸基团,伴随着形成的反应水的连续分离,其中用作催化剂的聚硅氧烷被改性为 用可溶性铝,钛或锆化合物处理,其球形颗粒的直径为0.01〜3mm,比表面积为0.1〜1200m2 / g,比孔体积为0.01〜6.0ml / g,体积 密度为50〜1000g / l。