Kabushiki Kaisha Toshiba

Makoto Harada

Kenji Arai

Mika Tahara

Yuji Yamamoto

Kazuo Saito

Atsushi Ohma

Atsuo Sonai

Yasuji Ogami

Michio Hori

Soichiro Shimotori

Yasuo Osawa

A hydrogen removing apparatus removes without fail the hydrogen gas generated within a nuclear reactor-housing vessel by a metal-water reaction so as to suppress the pressure elevation within the nuclear reactor-housing vessel. The hydrogen removing apparatus comprises a reactor provided with at least two openings through which the outer atmosphere is introduced into the reactor and a catalyst bed arranged within the reactor and loaded with a catalyst for promoting the ammonia synthesizing reaction between a nitrogen gas and a hydrogen gas.

Hydrogen removing apparatus

A fuel cell system comprising a fuel cell stack and a fuel reformer for reforming a fuel and supplying a reformed fuel to the fuel cell stack, further comprising a total enthalpy heat exchanger for exchanging heat and moisture between a reacted gas and an unreacted gas from the fuel cell stack, a separator for separating moisture from the fuel gas fed from the fuel cell stack or from an oxidant gas, and a mixer for mixing part of the moisture separated by the separator with a medium having a freezing point of 0&deg; C. or less.

Polymer electrolyte fuel cell system

An apparatus for removing flammable gas is started only when a concentration change in the flammable gas in a primary containment vessel is detected, so that the decrease in activity of a catalyst due to a catalyst poison is prevented. This apparatus has a catalytic recombining apparatus equipped with a catalyst for reacting the flammable gas, a case that houses the catalyst, and lids and installed at openings and of the case Adhesive parts and which adhere the lids and and the case is melted at high temperatures, and heating elements and composed of an oxidizing catalyst of hydrogen is installed in contact with the adhesive parts and Thus, the lids are not only closed under normal conditions but opened when the adhesive parts and being melted along with the temperature increase in the surrounding atmosphere.

Apparatus for removing flammable gas

Growing community of inventors

Yokohama, Japan

Makoto Harada