The Tokyo Electric Power Company, Incorporated

Jgc Corporation

The Japan Steel Works, Ltd.

Koji Tamura

Takeshi Yamaguchi

Jin Ogawa

Masao Tsurui

Yoshinori Suto

Tsutomu Katagiri

Shinichi Tokuda

Teruo Nagai

Chiaki Suyama

Jun Kakizaki

Yoshihiko Iwamoto

Katsuaki Osato

Muneo Omura

This method of upgrading a biomass comprises: an upgrading step for performing upgrading treatment of a cellulose based biomass with an oxygen/carbon atomic ratio of at least 0.5, in presence of water and under a pressure of at least saturated water vapor pressure, and reducing said oxygen/carbon atomic ratio of said biomass to no more than 0.38, and a separation step for separating an upgraded reactant obtained from said upgrading step into a solid component and a liquid component.

Method of upgrading biomass, upgraded biomass, biomass water slurry and method of producing same, upgraded biomass gas, and method of gasifying biomass

An object of the present invention is to continuously feed an object to be treated to a high-pressure reactor which treats the object to be treated containing 10 mass % or more of water under high pressure, while preventing backflow of a high-pressure atmosphere from the high-pressure reactor. This is embodied by making a configuration such that the object to be treated is fed to the high-pressure reactor connected to a discharge port of a screw feeder which is provided with a feed unit for the object to be treated and the discharge port on one end side and the other end side respectively and forms a high-pressure atmosphere pressurized to, for example, 2 MPa or higher, while air-tightness between the high-pressure atmosphere and the one end side of the screw feeder is maintained by a sealing action of an accumulation compressed on the other end side of the screw feeder.

High-pressure treatment apparatus and method for operating high-pressure treatment apparatus

Growing community of inventors

Higashiibaraki-gun, Japan

Koji Tamura