Removal of ammonia and carbon dioxide from fuel cell stack water system
by steam stripping
    1.
    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分类号: B01D19/001 B01D5/00

    摘要: 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.

    摘要翻译: 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。

    Ambient pressure fuel cell system employing partial air humidification
    2.
    发明授权
    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:US08304123B2

    公开(公告)日:2012-11-06

    申请号:US12110767

    申请日:2008-04-28

    IPC分类号: H01M8/06

    摘要: 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.

    摘要翻译: 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。

    Method and system for desulfurizing gasoline or diesel fuel for use in a fuel cell power plant
    3.
    发明授权
    Method and system for desulfurizing gasoline or diesel fuel for use in a fuel cell power plant 失效
    用于燃料电池发电厂的用于汽油或柴油的脱硫方法和系统

    公开(公告)号:US06610265B2

    公开(公告)日:2003-08-26

    申请号:US10042015

    申请日:2002-01-10

    IPC分类号: B01J1900

    摘要: A fuel processing system is operative to remove substantially all of the sulfur present in a logistic fuel stock supply. The fuel stock can be gasoline, diesel fuel, or other like fuels which contain relatively high levels of organic sulfur compounds such as mercaptans, sulfides, disulfides, and the like. The system is a part of a fuel cell power plant. The fuel stock supply is fed through a reformer where the fuel is converted to a hydrogen rich fuel which contains hydrogen sulfide. The hydrogen sulfide-containg reformer exhaust is passed through a sulfur scrubber, to which is added a small quantity of air, which scrubber removes substantially all of the sulfur in the exhaust stream by means of the Claus reaction. The desulfurizing step causes sulfur to deposit on the scrubber bed, which after a period of time, will prevent further sulfur from being removed from the reformer exhaust stream. The sulfur scrubber station is rejuvenated by passing a gas stream containing a relatively small amount (about 1% by volume) of carbon monoxide. The carbon monoxide is converted to carbonyl sulfide which is then burned in power plant burner so as to form sulfur dioxide in the power plant exhaust stream.

    摘要翻译: 燃料处理系统可操作以基本上除去物流燃料原料供应中存在的所有硫。 燃料原料可以是含有比较高含量的有机硫化合物如硫醇,硫化物,二硫化物等的汽油,柴油燃料或其他类似的燃料。 该系统是燃料电池发电厂的一部分。 燃料库存供应通过重整器进料,其中燃料转化为含有硫化氢的富氢燃料。 含硫化氢的重整器排气通过硫洗涤器,向其中加入少量空气,该洗涤器通过克劳斯反应基本上除去废气流中的所有硫。 脱硫步骤使硫沉积在洗涤床上,洗涤床在一段时间之后将防止进一步的硫从重整器废气流中移出。 通过使含有相对少量(约1体积%)的一氧化碳的气流通过硫洗涤塔来恢复。 将一氧化碳转化为硫化羰,然后在发电厂燃烧器中燃烧,从而在发电厂废气流中形成二氧化硫。

    Integrated fuel cell and fuel conversion apparatus
    5.
    发明授权
    Integrated fuel cell and fuel conversion apparatus 失效
    集成燃料电池和燃料转化装置

    公开(公告)号:US4642272A

    公开(公告)日:1987-02-10

    申请号:US812212

    申请日:1985-12-23

    IPC分类号: C01B3/38 H01M8/06

    摘要: An apparatus, process and use for making hydrogen from a hydrocarbon feedstock and steam using heat stored in a vessel followed by the regeneration of the vessel to restore the heat. Regeneration is done by preheating within the vessel a hydrogen purge gas and regeneration combustion products recycle and mixing the preheated gases with an oxygen containing gas so that they combust within the vessel in a fuel rich mode and heat material disposed in the vessel. This is the heat which is used in converting the hydrocarbon feedstock to hydrogen. The regeneration combustion products are recycled (and substituted for the cooling capacity of the oxygen containing gas) to recover the heat remaining in the vessel following the hydrogen make cycle simplifying reactor bed design and improving operational flexibility. The process is applied to provide hydrogen to a fuel cell.

    摘要翻译: 用于使用储存在容器中的热量从烃原料和蒸汽制备氢气的装置,方法和用途,随后容器的再生以恢复热量。 通过在容器内预热氢气净化气体和再生燃烧产物来再循环并将预热的气体与含氧气体混合,使得它们以富含燃料的模式在容器内燃烧并且设置在容器中的热材料来进行再生。 这是用于将烃原料转化为氢气的热量。 再生燃烧产物被循环(并且代替含氧气体的冷却能力),以回收在氢气循环之后剩余的热量,从而简化了反应器床设计并提高了操作灵活性。 该方法用于向燃料电池提供氢。

    Process for removing electrolyte vapor from fuel cell exhaust gas
    6.
    发明授权
    Process for removing electrolyte vapor from fuel cell exhaust gas 失效
    从燃料电池废气中除去电解质蒸气的方法

    公开(公告)号:US4533607A

    公开(公告)日:1985-08-06

    申请号:US678611

    申请日:1984-12-06

    IPC分类号: H01M8/04 H01M8/06

    CPC分类号: H01M8/0612

    摘要: Electrolyte vapor entrained in the hot exhaust gas stream from a fuel cell is removed by passing the gas stream through a saturator, over high surface area material, in direct contact with water circulating in a loop which also passes through the saturator. The hot gas stream evaporates a small portion of the water, resulting in cooling of the gas stream and condensing of electrolyte therein as it cools. The electrolyte dissolves into the recirculating water. The water is exchanged at predetermined intervals or when the concentration of electrolyte reaches a predetermined level. At least 99% of the electrolyte can be removed from the gas stream in this manner.

    摘要翻译: 通过使气流通过饱和器,在高表面积的材料上直接接触循环的循环中的水通过饱和器来除去夹带在来自燃料电池的热废气流中的电解质蒸汽。 热气流蒸发一小部分水,导致气流冷却,并在其中冷却电解液。 电解液溶解在循环水中。 水以预定间隔交换,或当电解液的浓度达到预定水平时。 可以以这种方式从气流中除去至少99%的电解质。

    Compact multi-tube catalytic reaction apparatus
    7.
    发明授权
    Compact multi-tube catalytic reaction apparatus 失效
    紧凑型多管催化反应装置

    公开(公告)号:US4098587A

    公开(公告)日:1978-07-04

    申请号:US827803

    申请日:1977-08-25

    摘要: Compact reaction apparatus, such as for steam reforming a hydrocarbon feedstock to produce hydrogen, includes a plurality of reactor tubes disposed within a furnace. A portion of each reactor extends into the burner cavity or combustion volume of the furnace. Baffles, such as sleeves, are disposed around these portions of the reactor tubes to shield the tubes from excessive radiant heat from the wall of the burner cavity and to more evenly distribute heat among and around all of the reactors. These baffles permit the reactor tubes to be closely packed within the furnace and reduce temperature differences between the tubes.

    摘要翻译: 诸如用于蒸汽重整烃原料以产生氢的紧凑反应装置包括设置在炉内的多个反应器管。 每个反应器的一部分延伸到炉的燃烧器腔或燃烧体积中。 诸如套管的挡板被布置在反应器管的这些部分周围,以屏蔽管子免受来自燃烧器腔壁的过度辐射热,并且在所有反应器之间和周围更均匀地分布热量。 这些挡板允许反应器管紧密地包装在炉内并减少管之间的温度差。

    Gas generating system and method
    8.
    发明授权
    Gas generating system and method 失效
    气体发生系统及方法

    公开(公告)号:US5961928A

    公开(公告)日:1999-10-05

    申请号:US838118

    申请日:1997-04-15

    摘要: A system for generating a desired output gas from an input fuel for use in a downstream process is disclosed. The system includes a plurality of fuel processing units to generate the desired output gas, wherein each of the plurality of fuel processing units includes a reformer which uses waste gas output from the downstream process to facilitate the processing of the fuel. Each of the fuel processing units is operational over a range up to full capacity, wherein the plurality of fuel processing units are interconnected in an collective operating scheme to process the fuel. A control system is provided for controlling the plurality of fuel processing units in response to requirements of a dynamic load demand from the downstream operation. The control system is operative to adjust the operational level of each of the plurality of fuel processing units to produce individual responses from each of the fuel processing units. The individual responses are combined to produce a collective response for meeting the requirements of the dynamic load demand. A method for generating a desired output gas from an input fuel for use in a downstream process is also provided.

    摘要翻译: 公开了一种用于从用于下游过程的输入燃料产生期望的输出气体的系统。 该系统包括多个燃料处理单元以产生期望的输出气体,其中多个燃料处理单元中的每个燃料处理单元包括使用从下游过程输出的废气促进燃料处理的重整器。 每个燃料处理单元在一直到满容量的范围内操作,其中多个燃料处理单元以集体操作方案相互连接以处理燃料。 提供控制系统,用于响应来自下游操作的动态负载需求的要求来控制多个燃料处理单元。 控制系统可操作以调整多个燃料处理单元中的每个燃料处理单元的操作水平,以产生来自每个燃料处理单元的各自的响应。 将各个响应组合起来以产生满足动态负载需求要求的集体响应。 还提供了用于从下游处理中使用的输入燃料产生期望输出气体的方法。

    Waste gas treatment system
    9.
    发明授权
    Waste gas treatment system 失效
    废气处理系统

    公开(公告)号:US5830423A

    公开(公告)日:1998-11-03

    申请号:US561684

    申请日:1995-11-22

    摘要: The gas stream which is produced in and emanates from landfills, anaerobic digesters and other waste gas streams, is treated to produce a purified gas which is essentially a hydrocarbon such as methane and which can be used as the fuel source in a fuel cell power plant. The gas stream passes through a simplified purification system which removes essentially all of the sulfur compounds, hydrogen sulfide, and halogen compounds from the gas stream. The resultant gas stream can be used to power a fuel cell power plant which produces electricity, or as a hydrocarbon fuel gas for other applications.

    摘要翻译: 处理生产并从垃圾填埋场,厌氧消化器和其他废气流中产生的气流,以生产基本上为烃的纯化气体,例如甲烷,并可用作燃料电池发电厂中的燃料源 。 气流通过简化的净化系统,其从气流中基本上除去所有的硫化合物,硫化氢和卤素化合物。 所产生的气流可以用于为产生电力的燃料电池发电厂或作为用于其它应用的烃燃料气体供电。

    Landfill gas treatment system
    10.
    发明授权
    Landfill gas treatment system 失效
    垃圾填埋气处理系统

    公开(公告)号:US5451249A

    公开(公告)日:1995-09-19

    申请号:US241113

    申请日:1994-06-14

    IPC分类号: B01D53/75 C10L3/10 B01D53/04

    CPC分类号: C10L3/10 B01D53/75 Y02E50/346

    摘要: The gas stream which emanates from landfills is treated to produce a purified gas which is essentially a hydrocarbon such as methane which can be used as the fuel source in a fuel cell power plant, or can be used in other power plants which use natural gas as a fuel. The landfill gas passes through a system which removes essentially all of the hydrogen sulfide; water; organic sulfur and halogen compounds; and solid contaminants from the gas stream. The resultant purified gas stream can be cleanly flared; used to power an energy plant; or put to other useful purposes.

    摘要翻译: 处理从垃圾填埋场排出的气流被处理以产生纯化气体,其基本上是可以用作燃料电池发电厂中的燃料源的甲烷等烃类,也可以用于其他使用天然气的发电厂 一种燃料 垃圾填埋气体通过基本上除去所有硫化氢的体系; 水; 有机硫和卤素化合物; 和来自气流的固体污染物。 所得净化气流可以被干净地张开; 用于为能源厂提供动力; 或放在其他有用的目的。