公开(公告)号：US20050208664A1

公开(公告)日：2005-09-22

申请号：US10801740

申请日：2004-03-16

申请人： Kevin Keegan ,  Amanda Weiss ,  Charles DeJohn

发明人： Kevin Keegan ,  Amanda Weiss ,  Charles DeJohn

IPC分类号： B01J12/00 ,  C01B3/38 ,  G01N35/08 ,  H01M8/06 ,  H01M8/12

CPC分类号： C01B3/386 ,  B01J12/007 ,  B01J2208/00716 ,  B01J2219/002 ,  B01J2219/00209 ,  B01J2219/00216 ,  B01J2219/00231 ,  B01J2219/00238 ,  C01B2203/0261 ,  C01B2203/1604 ,  C01B2203/1619 ,  C01B2203/169 ,  H01M8/0618 ,  H01M2008/1293 ,  Y10T436/12

摘要： A method for determining an optimal combustion interval during start-up of a hydrocarbon catalytic reformer under various conditions of temperature, fuel type, and combustion fuel flow rate. An initial catalyst temperature is measured and an algorithm is used to calculate a rate of heating of the catalyst by combustion based upon heat content of the fuel, selected fuel flow rate, and heat capacity and mass of the catalyst and reformer passages. From the initial temperature and the heating gradient, an optimal combustion interval is inferred through the algorithm and used to terminate combustion, initiate a combustion quench interval, and change over the fuel flow rate and mixture from combustion to reforming.

摘要翻译： 一种用于在各种温度，燃料类型和燃烧燃料流量条件下在烃催化重整器启动期间确定最佳燃烧间隔的方法。 测量初始催化剂温度，并且使用算法基于燃料的热含量，所选择的燃料流率以及催化剂和重整器通道的热容量和质量来计算催化剂的加热速率。 从初始温度和加热梯度，通过该算法推断出最佳燃烧间隔，并用于终止燃烧，启动燃烧骤冷间隔，并将燃料流速和燃烧混合物从燃烧转化为重整。

公开(公告)号：US20060024541A1

公开(公告)日：2006-02-02

申请号：US10909577

申请日：2004-08-02

申请人： Amanda Weiss ,  Subhasish Mukerjee ,  Karl Haltiner ,  Gregory Alexander

发明人： Amanda Weiss ,  Subhasish Mukerjee ,  Karl Haltiner ,  Gregory Alexander

IPC分类号： H01M8/04 ,  H01M8/06 ,  H01M8/12

CPC分类号： H01M8/0618 ,  C01B3/386 ,  C01B2203/0261 ,  C01B2203/066 ,  C01B2203/1288 ,  C01B2203/1604 ,  H01M8/04022 ,  H01M8/04134 ,  H01M2008/1293

摘要： A solid-oxide fuel cell system wherein a reformate combustor is disposed in the reformate flow path between a hydrocarbon reformer and a fuel cell stack. At system start-up, reformate is partially burned within the combustor by admitting combustion air, and the partially-burned reformate is passed through the anode chambers of the stack to warm the anodes. In addition, reformate is passed through a cathode-air heat exchanger to warm combustion air entering the cathode chambers of the stack. The combustor may continue to be supplied with a low level of air during steady-state operation of the SOFC, thereby providing a moist environment within the anode chambers to prevent coking of the anodes and providing additional heat to the reformate. The combustor decouples the reformer from the stack thermodynamically, permitting the reformer and the stack each to run in its own optimal temperature range.

摘要翻译： 一种固体氧化物燃料电池系统，其中重整燃烧器设置在烃重整器和燃料电池堆之间的重整产品流路中。 在系统启动时，通过加入燃烧空气在燃烧室内部分燃烧重整产物，部分燃烧的重整产物通过堆叠的阳极室，以加热阳极。 此外，重整产物通过阴极 - 空气热交换器以加热进入堆叠的阴极室的燃烧空气。 在SOFC的稳态操作期间，燃烧器可以继续供应低水平的空气，从而在阳极室内提供潮湿环境，以防止阳极焦化并向重整产品提供额外的热量。 燃烧器使热重分离器与热堆动力学解耦，允许重整器和堆叠各自运行在其最佳温度范围内。