JPWO2020139818A5

JPWO2020139818A5 -

Info

Publication number: JPWO2020139818A5
Application number: JP2021537140A
Authority: JP
Publication date: 2022-12-05
Anticipated expiration: 2039-12-23

Claims

a cabinet and a power module comprising a fuel cell disposed within said cabinet ;
an external duct configured to receive relatively cool cabinet effluent discharged from said cabinet ;
an internal duct positioned inside said external duct and configured to receive relatively hot reaction effluent discharged from said fuel cells of said power module. .

2. The system of claim 1, further comprising a heat exchanger disposed within said exhaust flue and configured to extract heat from said reaction effluent.

3. The system of claim 2, wherein said heat exchanger comprises a boiler.

a damper configured to divert at least a portion of the reaction effluent from the internal duct into the external duct;
3. The system of claim 2, further comprising an actuator configured to open and close the damper.

a reaction conduit extending through the outer duct and the inner duct and configured to supply fuel from a fuel source to the at least one power module;
a first catalyst disposed within the reaction conduit;
2. The system of claim 1, further comprising a second catalyst positioned within said reaction conduit downstream of said first catalyst relative to the direction of fuel flow through said reaction conduit.

said first catalyst comprising a metal oxide catalyst configured to remove sulfur species from said fuel;
wherein said second catalyst comprises a reforming or methanation catalyst;
6. The system of claim 5.

a carbon dioxide separator positioned on the reaction conduit, outside the exhaust flue and downstream of the second catalyst;
6. The system of claim 5, further comprising a heat exchanger positioned on said reaction conduit, within said external duct and downstream of said second catalyst.

a flow control valve positioned on the reaction conduit, outside the discharge flue and upstream of the first catalyst;
8. The system of claim 7, further comprising an anode recirculation blower positioned on said reaction conduit, outside said exhaust flue and downstream of said heat exchanger.

2. The system of claim 1, further comprising a thermoelectric generator module positioned between said inner duct and said outer duct.

2. The system of claim 1, wherein said exhaust flue comprises a plurality of said inner ducts arranged within said outer duct.

2. The system of claim 1, wherein the power modules are arranged in vertically stacked rows and the exhaust flue is positioned between the back sides of two rows of the power modules.

the fuel cell is placed in a hot box;
the hot box is located inside the cabinet of the power module;
The system of claim 1.

13. The system of claim 12, wherein the internal duct is fluidly connected to an exhaust conduit of the hot box.

14. The system of claim 13, wherein said external duct is fluidly connected to an exhaust conduit of said cabinet.

A method of operating a fuel cell system comprising:
operating a fuel cell located in a hot box located inside the cabinet to generate electricity;
supplying relatively cool cabinet effluent from said cabinet to an outer duct of a flue ;
and feeding a relatively hot reaction effluent from said hot box to an inner duct located within said outer duct of said flue .

16. The method of claim 15 , further comprising extracting heat from said reaction effluent in a heat exchanger located within said internal duct.

16. The method of claim 15 , further comprising opening a damper to divert at least a portion of said reaction effluent from said inner duct into said outer duct.

using heat from the reaction effluent flowing through the internal duct to reform, desulfurize, methanate a hydrocarbon fuel within a reaction conduit disposed within the internal duct; Or, the method of claim 15 , further comprising performing at least one of fractionating.

a direction of flow of the relatively cold cabinet effluent from the cabinet in an outer duct of the flue from the hot box of the relatively hot reaction effluent in the inner duct of the flue; 16. The method of claim 15, wherein the flow direction is the same as the flow direction of