Tokyo Gas Company Limited

Nagoya University

Institute of National Colleges of Technology, Japan

Isamu Yasuda

Yoshio Matsuzaki

Kentaro Ito

Masahiko Morinaga

Yoshitaka Baba

Hiroshi Yukawa

Yoshinori Shirasaki

Tomonori Nanbu

Yoshihisa Matsumoto

Hideto Kurokawa

Takashi Ogiwara

Takumi Nishii

Provided is a novel hydrogen separation membrane formed of a Nb&#x2014;W&#x2014;Mo-based alloy. A method for separating hydrogen using the hydrogen separation membrane and hydrogen separation conditions are selected by a particular procedure. A hydrogen separation membrane formed of the Nb&#x2014;W&#x2014;Mo-based alloy membrane. A method for separating hydrogen using the Nb&#x2014;W&#x2014;Mo-based alloy membrane and the conditions for separating hydrogen using the Nb&#x2014;W&#x2014;Mo-based alloy membrane are set by measuring the hydrogen pressure P of a hydrogen atmosphere for the Nb&#x2014;W&#x2014;Mo-based alloy membrane and the dissolved hydrogen content C of the Nb&#x2014;W&#x2014;Mo-based alloy membrane at a temperature T; generating a PCT curve associating the temperature T, the hydrogen pressure P, and the dissolved hydrogen content C on the basis of actual measurement data about the three requirements; and setting operating temperature and primary and secondary hydrogen pressure conditions by determining the relationship between the dissolved hydrogen content C and the brittle fracture of the Nb&#x2014;W&#x2014;Mo-based alloy membrane on the basis of the PCT curve to evaluate critical dissolved hydrogen content related to hydrogen embrittlement resistance.

Hydrogen separation membrane and method for separating hydrogen

There are provided a solid oxide fuel cell system made up of (a) a solid oxide fuel cell stack, (b) a preliminary reformer for removing hydrocarbons having two or more carbon atoms from a hydrocarbon fuel by converting the hydrocarbons having two or more carbon atoms into methane, hydrogen, and carbon monoxide, and (c) an integrated heat exchanger for catalytic combustion for heating either air or fuel, or both the air and fuel, to be guided to the solid oxide fuel cell stack, by use of a combustion gas formed by combusting discharged fuel with the use of discharged air, wherein the component equipment described above are disposed in an adiabatic vessel and the integrated heat exchanger for catalytic combustion for use in the solid oxide fuel cell system.

Solid oxide fuel cell system

A laminated structure of a flat plate type solid oxide fuel cell is made up of an alloy metal separator having a flat plate and a slit plate, wherein the flat plate is brought into contact with the slit plate after the slit plate is brought into contact with an air pole or the air pole is brought into contact with the slit plate after the slit plate is brought into contact with the flat plate, whereby a problem with the working of the alloy metal separator can be eliminated, and also the excellent performance of the flat plate type solid oxide fuel cell can be maintained by using the separator.

Laminated structure of flat plate type solid oxide fuel cell

Growing community of inventors

Tokyo, Japan

Isamu Yasuda