Fuel cell system for separating hydrogen from anode off-gas, method for operating the same and use thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BLUE WORLD TECH HLDG APS
- Filing Date
- 2023-12-15
- Publication Date
- 2026-06-23
AI Technical Summary
In existing technologies, when separating hydrogen from anode exhaust gas and recycling it back into the fuel cell, the efficiency improvement of low-temperature fuel cell systems is limited. Traditional methods, such as burner heating reformer, lead to efficiency reduction, and high-temperature fuel cells are sensitive to CO, requiring reactor switching.
An electrically driven reformer-heater replaces the burner, heating the reformer and combining it with an electrochemical hydrogen pump or heat pump system to separate hydrogen from the anode exhaust gas and recycle it to the fuel cell anode, avoiding the combustion of hydrogen and using electricity or a heat pump to increase the reformer temperature.
It improves the efficiency of fuel cell systems by 1-7.5%, especially the heat pump system, which improves efficiency by more than 5% in high-temperature fuel cells, enabling more efficient hydrogen separation and recirculation, simplifying system design, and reducing sensitivity to CO.
Smart Images
Figure CN120345086B_ABST