发明名称 |
Systems and processes for operating fuel cell systems |
摘要 |
Processes and systems for operating molten carbonate fuel cell systems are described herein. A process for operating a molten carbonate fuel cell system includes providing a hydrogen-containing stream comprising molecular hydrogen to an anode portion of a molten carbonate fuel cell; controlling a flow rate of the hydrogen-containing stream to the anode such that molecular hydrogen utilization in the anode is less than 50%; mixing anode exhaust comprising molecular hydrogen from the molten carbonate fuel cell with a hydrocarbon stream comprising hydrocarbons, contacting at least a portion of the mixture of anode exhaust and the hydrocarbon stream with a catalyst to produce a steam reforming feed; separating at least a portion of molecular hydrogen from the steam reforming feed; and providing at least a portion of the separated molecular hydrogen to the molten carbonate fuel cell anode. |
申请公布号 |
US8795912(B2) |
申请公布日期 |
2014.08.05 |
申请号 |
US201113009233 |
申请日期 |
2011.01.19 |
申请人 |
Shell Oil Company |
发明人 |
Cui Jingyu;Engwall Erik Edwin;Johnston John William;Joshi Mahendra Ladharam;Wellington Scott Lee |
分类号 |
H01M8/18;H01M8/06 |
主分类号 |
H01M8/18 |
代理机构 |
|
代理人 |
Stewart Charles W. |
主权项 |
1. A process of operating a molten carbonate fuel cell, comprising:
providing a hydrogen-containing stream comprising molecular hydrogen to an anode portion of a molten carbonate fuel cell; controlling a flow rate of the hydrogen-containing stream to the anode such that molecular hydrogen utilization in the anode is less than 50%; mixing anode exhaust comprising molecular hydrogen from the molten carbonate fuel cell with a hydrocarbon stream comprising hydrocarbons, wherein the anode exhaust mixed with the hydrocarbon stream has a temperature from 500° C. to 700° C.; contacting at least a portion of the mixture of anode exhaust and the hydrocarbon stream with a catalyst to produce a stream comprising one or more gaseous hydrocarbons, molecular hydrogen, and at least one carbon oxide; separating at least a portion of the molecular hydrogen from the stream comprising one or more gaseous hydrocarbons, molecular hydrogen, and at least one carbon oxide steam reforming feed; and providing at least a portion of the separated molecular hydrogen to the molten carbonate fuel cell anode as at least a portion of the hydrogen-containing stream comprising molecular hydrogen. |
地址 |
Houston TX US |