Samsung Sdi Co., Inc.

Doohwan Lee

Hyun-chul Lee

Soonho Kim

Dong-Woo Lee

Tae-sang Park

Eun-duck Park

A fuel cell system and an operating method of the same. The fuel cell system includes a carbon monoxide adsorbing device that is disposed at an exit of a shift reactor and removes carbon monoxide which is not completely removed in the shift reactor. Therefore, a start-up time of the fuel cell system is remarkably reduced without poisoning catalysts of electrodes of the fuel cell. An overall volume of the fuel cell system can be reduced since the carbon monoxide adsorbing device is only operating during the start-up, and thus the fuel cell system can be economically manufactured and operated. Additionally, the carbon monoxide adsorbent can be regenerated, thereby increasing economic efficiency of the fuel cell system.

Fuel cell system with fuel reforming units

A shift reactor for fuel cells, a fuel cell system employing the same, and an operating method of the same are provided. More particularly, a shift reactor for fuel cells is filled with a shift catalyst and includes an inlet through which reactants flow into the shift reactor and an outlet through which products flow out of the shift reactor. An oxygen supply duct and a valve capable of regulating the oxygen supply are positioned at the outlet side of the shift reactor. The oxygen supply allows for the temperature of the shift catalyst to be increased rapidly at startup, thereby significantly shortening the startup time of the shift reactor and thereby contributing to an improved practical operation of the fuel cell system.

Growing community of inventors

Daejeon-si, South Korea

Doohwan Lee