发明名称 |
Ammonia fueled SOFC system |
摘要 |
Systems and methods are provided in which ammonia is used as a fuel source for solid oxide fuel cell systems. In the various aspects a high temperature fuel cell stack exhaust stream is recycled through one or more separation or conversion devices to create a purified recycled fuel exhaust stream that is recycled back into the fuel inlet stream of the high temperature fuel cell stack. In various aspects a nitrogen separator may remove nitrogen from the recycled fuel cell stack exhaust stream, a water separator may remove water from the recycled fuel cell stack exhaust stream, and/or an ammonia reactor and hydrogen separator may be used to condition the fuel inlet stream of the high temperature fuel cell stack. In a further aspect a molten carbonate fuel cell and/or Sabatier reactor may be used to condition the fuel inlet stream of the high temperature fuel cell stack. |
申请公布号 |
US8916300(B2) |
申请公布日期 |
2014.12.23 |
申请号 |
US201213606765 |
申请日期 |
2012.09.07 |
申请人 |
Bloom Energy Corporation |
发明人 |
McElroy James;Ballantine Arne;Gottmann Matthias |
分类号 |
H01M8/06 |
主分类号 |
H01M8/06 |
代理机构 |
The Marbury Law Group PLLC |
代理人 |
The Marbury Law Group PLLC |
主权项 |
1. A method of operating a fuel cell system, comprising:
providing a fuel inlet stream comprising ammonia; providing the fuel inlet stream into a solid oxide fuel cell stack; operating the solid oxide fuel cell stack to generate a fuel exhaust stream; separating at least a portion of hydrogen from a first portion of the fuel exhaust stream using a hydrogen separator to generate a purified fuel exhaust stream, wherein the hydrogen separator is a plurality of cascaded hydrogen pumps; recycling the purified fuel exhaust stream to the fuel inlet stream; providing a portion of the fuel inlet stream comprising ammonia to an ATO, wherein the ATO does not receive any portion of the fuel exhaust stream; and providing air from the solid oxide fuel cell stack to the ATO. |
地址 |
Sunnyvale CA US |