Japan Aerospace Exploration Agency

Asuka Shima

Yoshitsugu Sone

Takayuki Abe

Mitsuhiro Inoue

Omar Mendoza

Motohiko Sato

Hiroshige Matsumoto

Yuki Terayama

Toru Kinoshita

Masato Sakurai

Tetsuya Nakabeppu

Minoru Umeda

Ryota Shinozaki

An object is to provide a methane synthesis device having as a whole a reduced size and a simplified configuration. A methane synthesis deviceis composed of respective components from an end plateat the leftmost side to an end plateat the rightmost side and is compactly assembled by fastening plural bolts and nuts to bring these individual components into tightly contact with each other. The components may be divided into a Sabatier reaction unit of signsto, a water electrolysis unit of signsto, and other components. Hydrogen gas generated in the water electrolysis unit is mixed with carbon dioxide gas and supplied to the Sabatier reaction unit, and methane is synthesized in the Sabatier reaction unit. The size of the device is reduced as a whole and configuration is simplified by integrally stacking the water electrolysis unit, the Sabatier reaction unit, a carbon dioxide supplying unit, and a hydrogen gas supplying unit.

Methane synthesis device

In a hydrogen reduction catalyst for carbon dioxide of the present invention, catalytic metal nanoparticles and a metal oxide for suppressing grain growth of the catalytic metal nanoparticles are dispersed and supported on a carrier.

Hydrogen reduction catalyst for carbon dioxide and method for producing same, hydrogen reduction method for carbon dioxide, and hydrogen reduction device for carbon dioxide

There are provided: a solid polymer power generation or electrolysis method that does not require injection of energy from the outside and maintenance of a high temperature, and is capable of converting carbon dioxide to a useful hydrocarbon while producing energy, controlling the production amounts of the hydrocarbons or the like and a ratio sorted by kind of the hydrocarbons, improving utilization efficiency of a product, and simplifying equipment for separation and recovery; and a system for implementing the solid polymer power generation or electrolysis method. Carbon dioxide is supplied to the side of one electrodeof a reactorhaving a membrane electrode assembly, hydrogen is supplied to the side of the other electrode, and the amounts of the hydrocarbons produced per unit time and the ratio sorted by kind of the hydrocarbons are changed by controlling a power generation voltage of the reactor

Solid polymer power generation or electrolysis method and system

Growing community of inventors

Chofu, Japan

Asuka Shima