Steam reforming process and apparatus therefor
    21.
    发明授权
    Steam reforming process and apparatus therefor 失效
    蒸汽重整过程及其设备

    公开(公告)号:US4071330A

    公开(公告)日:1978-01-31

    申请号:US753341

    申请日:1976-12-22

    CPC classification number: C01B3/38 B01J8/062 C01B3/384 Y02P20/133

    Abstract: A tubular catalytic reactor, such as for steam reforming a hydrocarbon feedstock to produce hydrogen, is disposed within a furnace and includes an annular first bed of reaction catalyst. A second bed of reaction catalyst is disposed coaxial with the first bed and inwardly thereof. Product gases from the first bed, without adding heat thereto, are passed through the second bed essentially adiabatically resulting in a substantial reduction in the amount of unreacted hydrocarbons heavier than methane which were present in the product gases leaving the first bed. The apparatus is compact and uses only the sensible heat in the reaction products leaving the first bed to reduce the level of unwanted hydrocarbons. Thus, in the process of the present invention, the reduction in the level of unwanted heavier hydrocarbons is accomplished in compact apparatus without burning additional fuel and without extracting additional heat energy from the furnace.

    Abstract translation: 管式催化反应器,例如用于蒸汽重整烃原料以产生氢的管式催化反应器设置在炉内,并且包括环状的第一反应催化剂床。 第二反应催化床与第一床同轴并向内设置。 来自第一床的产物气体,而不加热,基本上绝热地通过第二床,导致存在于离开第一床的产物气体中的比甲烷重的烃的量的显着减少。 该设备是紧凑的,并且仅使离开第一床的反应产物中的显热减少不需要的烃的水平。 因此,在本发明的方法中,不需要的较重碳氢化合物的水平的降低是在紧凑的装置中完成的,而不会燃烧额外的燃料并且不从炉中提取额外的热能。

    Ambient Pressure Fuel Cell System Employing Partial Air Humidification
    22.
    发明申请
    Ambient Pressure Fuel Cell System Employing Partial Air Humidification 失效
    环境压力燃料电池系统采用部分空气加湿

    公开(公告)号:US20080199743A1

    公开(公告)日:2008-08-21

    申请号:US12110767

    申请日:2008-04-28

    Abstract: A fuel cell system is provided that is capable of operating at high temperatures and near-ambient pressure with partial humidification of air supplied to the fuel cell stack. The fuel cells of the stack incorporate gas diffusion barrier layers at the cathode side thereof. The system includes a cooling loop for circulating a liquid coolant through the stack. In some embodiments, an incoming air stream is partially humidified with water vapor transferred from a cathode exhaust stream in a gas-exchange humidifier or enthalpy wheel. In other embodiments, a cathode recycle is employed to partially humidify the incoming air. The humidity of the air and cathode exhaust streams is maintained below a stack saturation point. Methods of operating the fuel cell system are also provided.

    Abstract translation: 提供了能够在高温和近环境压力下操作并且部分加湿供应到燃料电池堆的空气的燃料电池系统。 堆叠的燃料电池在其阴极侧包含气体扩散阻挡层。 该系统包括用于使液体冷却剂循环通过堆的冷却回路。 在一些实施例中,进入的空气流部分地被加湿,其中水蒸汽是从气体交换加湿器或焓轮中的阴极排气流传递的。 在其它实施例中,使用阴极再循环部分地加湿进入的空气。 空气和阴极废气流的湿度保持在堆积饱和点以下。 还提供了操作燃料电池系统的方法。

    Apparatus for humidifying the air stream of a fuel cell power plant
    23.
    发明授权
    Apparatus for humidifying the air stream of a fuel cell power plant 失效
    用于加湿燃料电池发电厂的气流的装置

    公开(公告)号:US06207306B1

    公开(公告)日:2001-03-27

    申请号:US09217256

    申请日:1998-12-21

    CPC classification number: H01M8/04156 H01M8/04119

    Abstract: A water recovery fuel cell system includes a fuel cell defining a cathode flow field including a cathode input port and a cathode output port, and an anode flow field including an anode input port and an anode output port A humidity exchange device defines a supply gas input port, a supply gas output port, a process exhaust gas input port and a process exhaust gas output port. The supply gas input port is to be coupled to a source of oxidant gas, and the supply gas output port is coupled to the fuel cell power plant oxidant air supply including the cathode input port of the fuel cell. The process exhaust gas output port communicates at a junction with the cathode output port and a combustor exhaust derived from the anode flow field of the fuel cell, and the exhaust gas output port communicates with a power plant exhaust conduit. A power plant exhaust path is defined from the cathode output port to the power plant exhaust conduit via the humidity exchange device. A water recovery condenser is disposed along the power plant exhaust path between the junction and the power plant exhaust conduit.

    Abstract translation: 水回收燃料电池系统包括限定包括阴极输入端口和阴极输出端口的阴极流场的燃料电池,以及包括阳极输入端口和阳极输出端口的阳极流场。湿度交换装置限定供气输入 端口,供气输出端口,工艺废气输入端口和工艺废气输出端口。 供应气体输入端口将耦合到氧化剂气体源,并且供应气体输出端口连接到包括燃料电池的阴极输入端口的燃料电池发电厂氧化剂空气供应。 工艺废气输出口在与阴极输出口的连接点和来自燃料电池的阳极流场的燃烧器排气口连通,排气输出口与发电厂排气管道连通。 发电厂排气通道经由湿度交换装置从阴极输出口至发电厂排气导管。 水回收冷凝器沿着发电厂排气路径设置在交界处和发电厂排气管之间。

    Control system and method for controlling a gas generating system
    24.
    发明授权
    Control system and method for controlling a gas generating system 失效
    用于控制气体发生系统的控制系统和方法

    公开(公告)号:US6051192A

    公开(公告)日:2000-04-18

    申请号:US838119

    申请日:1997-04-15

    CPC classification number: C01B3/32 B01J19/0006 B01J8/001 H01M8/0612

    Abstract: A control system and method for controlling a fuel processing system operational to produce a gas for a downstream process from a fuel, wherein the fuel processing system uses a plurality of fuel processing elements, a fuel input and a waste gas input, each of the fuel processing elements having an individual output and the plurality of fuel processing elements having a collective output, and wherein the downstream process has a waste gas output and a dynamic gas load demand. The control system includes a device for receiving communication from the downstream process indicative of the dynamic load demand and a device for controlling the collective output level of the gas in response to the dynamic load demand. The device for controlling is operative to at least one of substantially equally distribute the dynamic load demand among the plurality of fuel processing elements such that the individual outputs from each of the fuel processing elements are substantially equal to each other for forming the collective output and most efficiently distribute the dynamic load among the plurality of fuel processing elements such that at least one of the individual outputs contributes to the collective output.

    Abstract translation: 一种用于控制燃料处理系统的控制系统和方法,用于从燃料生产用于下游过程的气体,其中燃料处理系统使用多个燃料处理元件,燃料输入和废气输入,每个燃料 具有单独输出的处理元件和具有集体输出的多个燃料处理元件,并且其中下游处理具有废气输出和动态气体负载需求。 控制系统包括用于从下游处理接收指示动态负载需求的通信的装置和用于响应于动态负载需求来控制气体的集体输出电平的装置。 用于控制的装置可操作成基本上均等地分配多个燃料处理元件之间的动态负载需求中的至少一个,使得来自每个燃料处理元件的各个输出基本上彼此相等以形成集合输出,并且大部分 有效地分配多个燃料处理元件之间的动态负载,使得各个输出中的至少一个有助于集体输出。

    Fuel cell power plant reformer burner gas flow control system
    25.
    发明授权
    Fuel cell power plant reformer burner gas flow control system 失效
    燃料电池发电厂改造燃烧器燃气流量控制系统

    公开(公告)号:US5470360A

    公开(公告)日:1995-11-28

    申请号:US209043

    申请日:1994-03-10

    CPC classification number: H01M8/0631

    Abstract: The fuel gas reformer of a fuel cell power plant is provided with burner gas flow baffles which are annular in configuration, and which are concentric with the axis of the burner tube. The annular burner gas flow baffles form annular burner gas flow passages. The reformer has a plurality of annular arrays of catalyst filled tubes disposed in concentric rings about the burner tube. Each of the adjacent catalyst tube rings is separated from the next filled tube ring by one of the annular baffles. Burner gases are deflected downwardly and outwardly by the reformer housing top piece onto the catalyst filled tube rings. The baffles prevent inward flow of the burner gases and direct the burner gases uniformly downwardly along the catalyst filled tubes. Each ring of catalyst filled tubes is thus properly heated so as to enhance reforming of the fuel gas reactant.

    Abstract translation: 燃料电池发电厂的燃料气体重整器设置有环形的燃烧器气流挡板,其与燃烧器管的轴线同心。 环形燃烧器气流挡板形成环形燃烧器气体流动通道。 重整器具有围绕燃烧器管设置在同心环中的多个催化剂填充管的环形阵列。 每个相邻的催化剂管环通过一个环形挡板与下一个填充的管环分离。 燃烧器气体通过重整器壳体顶部向下和向外偏转到催化剂填充的管环上。 挡板防止燃烧器气体的向内流动并且沿着催化剂填充的管均匀地向下引导燃烧器气体。 催化剂填充管的每个环因此被适当地加热,以便增强燃料气体反应物的重整。

    Removal of ammonia and carbon dioxide from fuel cell stack water system
by steam stripping
    26.
    发明授权
    Removal of ammonia and carbon dioxide from fuel cell stack water system by steam stripping 失效
    通过蒸汽汽提从燃料电池堆水系统中去除氨和二氧化碳

    公开(公告)号:US4816040A

    公开(公告)日:1989-03-28

    申请号:US108848

    申请日:1987-10-15

    CPC classification number: B01D19/001 B01D5/00

    Abstract: The fuel cell power plant has a closed water circulation system whose only source of fresh water is the electrochemical reaction in the power section. The water becomes contaminated with ammonia and carbon dioxide in the fuel contact cooler and the ammonia and carbon dioxide are stripped out of the water by steam produced by operating the plant. The ammonia and carbon dioxide-laden steam is vented from the plant. The amount of water lost from the plant as steam is less than the amount of available water produced in the electrochemical reaction.

    Abstract translation: 燃料电池发电厂具有封闭的水循环系统,其唯一的淡水源是动力部分的电化学反应。 燃料接触冷却器中的水被氨和二氧化碳污染,氨和二氧化碳通过操作工厂产生的蒸汽从水中除去。 从工厂排出含氨和二氧化碳的蒸汽。 当蒸汽小于电化学反应中产生的可用水量时,从设备中损失的水量。

    Process for humidifying a gaseous fuel stream
    27.
    发明授权
    Process for humidifying a gaseous fuel stream 失效
    用于加湿气态燃料流的方法

    公开(公告)号:US4530886A

    公开(公告)日:1985-07-23

    申请号:US678612

    申请日:1984-12-06

    CPC classification number: H01M8/04

    Abstract: A fuel gas stream for a fuel cell is humidified by a recirculating hot liquid water stream using the heat of condensation from the humidified stream as the heat to vaporize the liquid water. Humidification is accomplished by directly contacting the liquid water with the dry gas stream in a saturator to evaporate a small portion of the water. The recirculating liquid water is reheated by direct contact with the humidified gas stream in a condenser, wherein water is condensed into the liquid stream. Between the steps of humidifying and condensing water from the gas stream it passes through the fuel cell and additional water, in the form of steam, is added thereto.

    Abstract translation: 用于燃料电池的燃料气流由循环热液体水流加湿,使用来自加湿流的冷凝热作为蒸发液体水的热量。 通过将液态水与干燥气体流直接接触在饱和器中以蒸发一小部分水来实现加湿。 再循环液体水通过与冷凝器中的加湿气流直接接触而再加热,其中水被冷凝成液体流。 在从气流加湿和冷凝水的步骤之间,其通过燃料电池,并且以蒸汽的形式向其中添加额外的水。

    Process for gasifying liquid hydrocarbon fuels
    28.
    发明授权
    Process for gasifying liquid hydrocarbon fuels 失效
    气化烃类燃料的工艺

    公开(公告)号:US4381187A

    公开(公告)日:1983-04-26

    申请号:US325413

    申请日:1981-11-27

    Abstract: Gasifying liquid hydrocarbon fuels, and in particular liquid heavy hydrocarbon fuels, at high fuel-to-air equivalence ratios with no significant soot formation comprises the steps of mixing the fuel and heated air in a prevaporization and mixing zone to prevaporize only a portion of the liquid fuel using only the sensible heat in the air, passing the partially vaporized fuel-air mixture through a catalyst zone to catalytically combust at least some of the prevaporized portion of the fuel while simultaneously, without the use of an external heat source, vaporizing and gasifying as-yet unvaporized fuel using the additional heat generated by the catalytic combustion, wherein the length of the catalyst zone, the catalyst configuration, and the fuel flow rate have been preselected to obtain the desired amount of gasification and to sustain continuous gasification with no significant soot formation.

    Abstract translation: 在没有显着的烟灰形成的情况下以高燃料 - 空气当量比气化液化烃燃料,特别是液体重烃燃料,包括以下步骤:将燃料和加热的空气混合在预蒸发和混合区中,以仅将一部分 液体燃料仅使用空气中的显热,使部分蒸发的燃料 - 空气混合物通过催化剂区域,同时催化地燃烧燃料的至少一部分的已经蒸发的部分,而不使用外部热源,汽化和 使用由催化燃烧产生的额外热量来气化尚未蒸发的燃料,其中催化剂区的长度,催化剂构型和燃料流速已经被预先选择以获得所需量的气化并维持连续气化 显着烟灰形成。

    Multi-tube catalytic reaction apparatus
    29.
    发明授权
    Multi-tube catalytic reaction apparatus 失效
    多管催化反应装置

    公开(公告)号:US4098588A

    公开(公告)日:1978-07-04

    申请号:US827802

    申请日:1977-08-25

    Abstract: Compact reaction apparatus, such as apparatus for steam reforming a hydrocarbon feedstock to produce hydrogen, comprises a plurality of tubular reactors vertically disposed and closely packed within a furnace. The furnace is divided into an enhanced heat transfer portion and a burner cavity. Each of the several reactors is disposed partly within the burner cavity and partly within the enhanced heat transfer portion. Heat transfer means, such as particles of a heat transfer packing material, is disposed within the enhanced heat transfer portion of the furnace and is constructed and arranged to provide substantially uniform and enhanced conductive, convective, and radiant heating of that portion of the reactors disposed within the heat transfer portion.

    Abstract translation: 紧凑的反应装置,例如用于蒸汽重整烃原料以产生氢气的装置,包括垂直设置并紧密地包装在炉内的多个管式反应器。 炉子被分为增强的传热部分和燃烧器腔。 几个反应器中的每一个部分地设置在燃烧器腔内,部分地设置在增强的传热部分内。 诸如热传递包装材料的颗粒的传热装置设置在炉的增强的传热部分内,并且被构造和布置成提供基本均匀且增强的部分反应器的导电,对流和辐射加热 在传热部分内。

    Self-inerting fuel processing system
    30.
    发明授权
    Self-inerting fuel processing system 失效
    自燃燃料处理系统

    公开(公告)号:US06660416B2

    公开(公告)日:2003-12-09

    申请号:US09894813

    申请日:2001-06-28

    CPC classification number: H01M8/04231 H01M8/04097 H01M8/0612 H01M8/0662

    Abstract: A self-inerting fuel processing system is provided. In one embodiment, the present fuel processing system comprises a fuel processor comprising a reformer, at least one self-reducing catalyst bed, a recycle loop for circulating a gas stream through the fuel processor and the self-reducing catalyst bed(s) during shutdown of the fuel processing system, and an oxidant supply for introducing oxidant into the recycle loop during shutdown of the fuel processing system. A method for shutting down the fuel processing system is provided. A fuel cell electric power generation system incorporating the present fuel processing system is also provided.

    Abstract translation: 提供了一种自燃燃料处理系统。 在一个实施方案中,本燃料处理系统包括燃料处理器,其包括重整器,至少一个自还原催化剂床,用于在关闭期间使气流循环通过燃料处理器的循环回路和自还原催化剂床 的燃料处理系统,以及用于在燃料处理系统关闭期间将氧化剂引入循环回路的氧化剂供应源。 提供了一种关闭燃料处理系统的方法。 还提供了结合本燃料处理系统的燃料电池发电系统。

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