Patent ID: 11949135
Assignee: FUELCELL ENERGY, INC
Field: Chemical engineering (Chemistry)
Classification: CPC H  B  Y | IPC B  H

Claim 5:
6. The fuel cell system of claim 1, further comprising:
a first heat exchanger configured to receive and cool the first anode exhaust gas and output a first partially-cooled gas;
a first CO shift reactor configured to receive the first partially-cooled gas, to perform a first CO shift reaction at a first temperature on the first partially-cooled gas, and to output a first shifted gas;
a second heat exchanger configured to receive and cool the first shifted gas, and to output a second partially-cooled gas;
a second CO shift reactor configured to receive the second partially-cooled gas, to perform a second CO shift reaction at a second temperature on the second partially-cooled gas, and to output a second shifted gas; and
a third heat exchanger configured to receive and cool the second shifted gas, and to output a cooled gas;
wherein the first anode exhaust gas received at the first oxidizer is the cooled gas output from the third heat exchanger; and
wherein the first temperature is higher than the second temperature.