Tokyo Gas Company Limited

Marie Shirai

Tatsuya Nakajima

Tatsuki Dohkoh

Kazuo Nakamura

Takahiro Ide

Toru Hatae

Shunnosuke Akabane

A fuel cell system including a fuel cell, an off-gas reprocessing unit that is provided downstream of the fuel cell and that at least partially removes at least one of steam or carbon dioxide from an off-gas discharged from the fuel cell, a flow passage that is provided downstream of the off-gas reprocessing unit and that allows a reprocessed off-gas discharged from the off-gas reprocessing unit to flow therethrough, and a controlling unit that modulates the reaction constant Kof a reaction A with respect to the reprocessed off-gas discharged from the off-gas reprocessing unit, to 1.22 or more.

Fuel cell system and method of reprocessing off-gas

A carbon dioxide production systemA includes: a fuel cell stack; a separation unitthat separates anode off-gas into a non-fuel gas including at least carbon dioxide and water and a regenerative fuel gas; a second heat exchangerthat separates water from the non-fuel gas; a water tank; and a carbon dioxide recovery tankthat recovers the carbon dioxide after the water has been separated.

Carbon dioxide production system

Growing community of inventors

Tokyo, Japan

Marie Shirai