Fuel cell system using hydrogen from electrolyzer of sea water

A fuel cell system using waste hydrogen generated from a sea water electrolyzing apparatus, the fuel cell system comprising:

• a sea water electrolyzing apparatus carrying out electrolysis of sea water used as cooling water in a nuclear power generation system to produce a chlorine-containing material;
• a hydrogen conveying line linked to one side of the sea water electrolyzing apparatus to convey waste hydrogen generated during the electrolysis;
• and
• a fuel cell linked to the hydrogen conveying line to generate electricity by using the waste hydrogen supplied from the hydrogen conveying line as fuel,
• wherein the fuel cell system further comprises a waste hydrogen deionization or dechlorination unit, the waste hydrogen deionization or dechlorination unit is a coaxial channel having a core channel, a shell channel surrounding the core channel, and an intermediate membrane defining the core channel and the shell channel, and the waste hydrogen flows through the core channel, while water discharged from the fuel cell flows through the shell channel,
• wherein the fuel cell system further comprises a bubbler for deionization or dechlorination of waste hydrogen, the bubbler allows the gas passed from the coaxial channel to be bubbled in deionized water, while the gas is collected over the deionized water to be sent to a hydrogen inlet of the fuel cell, and the deionized water is exchanged periodically with fresh deionized water,
• wherein the fuel cell uses dehumidified hydrogen as fuel, and the fuel cell system is further provided with a hydrogen drying unit at an upstream of the hydrogen inlet to dry hydrogen introduced to the fuel cell.