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    • 2. 发明授权
    • Method and system for desulfurizing gasoline or diesel fuel for use in a fuel cell power plant
    • 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
    • US06610265B2
    • 2003-08-26
    • US10042015
    • 2002-01-10
    • Donald F. SzydlowskiRoger R. LesieurRichard A. Sederquist
    • Donald F. SzydlowskiRoger R. LesieurRichard A. Sederquist
    • B01J1900
    • H01M8/0675B01D53/04B01D2253/102B01D2257/30C10G25/12H01M8/04223H01M8/0612H01M8/086H01M8/1007Y10S502/514Y10S502/517
    • 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.
    • 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。
    • 5. 发明授权
    • Shift converter
    • 移位转换器
    • US06306354B1
    • 2001-10-23
    • US08651160
    • 1996-05-17
    • Donald F. SzydlowskiThomas J. CorriganDale W. BlakeRichard A. Sederquist
    • Donald F. SzydlowskiThomas J. CorriganDale W. BlakeRichard A. Sederquist
    • F28D704
    • C01B3/16B01J8/025B01J8/0285B01J2208/00141B01J2219/00083
    • A fuel cell power plant, generally, has a fuel cell stack for electrochemically converting a hydrocarbon fuel into electricity. In order for the hydrocarbon fuel to be used by the fuel cell stack, it must be steam reformed into a hydrogen-rich process gas. This process gas has a carbon monoxide level that would be detrimental to the fuel cell stack, so the process gas is passed through a shift converter to decrease the carbon monoxide level therein prior to feeding the process gas to the fuel cell stack. In order to decrease the level of carbon monoxide without the need to increase the size of the shift converter catalyst bed, or lower the temperature of the process gas as it enters the shift converter to an undesirably low temperature, the shift converter design that utilizes an upstream adiabatic zone and a downstream actively cooled zone. The actively cooled zone is cooled by a pressurized water coolant which boils as it cools the process gas stream. The coolant entering the shift converter is essentially a single phase water stream, and the coolant exiting the shift converter is a two phase water-steam mixture.
    • 燃料电池发电厂通常具有用于将碳氢化合物燃料电化学转化成电的燃料电池堆。 为了使燃料电池堆使用碳氢化合物燃料,必须将其蒸汽重整成富氢处理气体。 该工艺气体具有对燃料电池堆不利的一氧化碳水平,因此在将工艺气体供给燃料电池堆之前,工艺气体通过变换器以降低其中的一氧化碳水平。 为了降低一氧化碳的水平,而不需要增加变换催化剂床的尺寸,或者当工艺气体进入转换器到不期望的低温时,其温度降低,使用 上游绝热带和下游主动冷却区。 主动冷却区域被加压的水冷却剂冷却,其在冷却工艺气体流时沸腾。 进入换档转换器的冷却剂基本上是单相水流,离开换档转换器的冷却剂是两相水蒸气混合物。