Jgc Corporation

The Tokyo Electric Power Company, Incorporated

Mitsubishi Petrochemical Company Limited

Teruo Nagai

Takeshi Yamaguchi

Tsutomu Katagiri

Yoshinori Suto

Masao Tsurui

Shinichi Tokuda

Jin Ogawa

Koji Tamura

Chiaki Suyama

Takeshi Shibano

Yasuyuki Sakakura

Katsunobu Yamaguchi

Kazuo Kikuchi

Tadahiko Kondoh

Isamu Yanai

Tateo Kurihara

Tomoo Saito

Suguru Hamanaka

Yoji Kawatani

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

A shell-and-tube apparatus, more specifically, a shell-and-tube reactor, which includes a vessel, at least one intermediate tube plate sectioning the interior of the vessel into at least two compartments having different temperatures, a number of heat transferring tubes penetrating the intermediate tube plate or plates, and a fluid passing through the tubes which is heated or cooled by a heat transfer medium surrounding the tubes. At least one insulation plate or plates are provided on one or both sides of the intermediate tube plate so that the space between the intermediate tube plate or plates and, if two or more insulation plates are used, the space or spaces between the insulation plates may be utilized as a stagnation zone for the heat transfer medium, so as to make the temperature gradient through the intermediate tube plate or plates gentle and relax the thermal stress occurring in the body wall. The reactor is particularly useful for production of (meth)acrolain and/or (meth)acrylic acid by catalytic gas-phase oxidation of propylene or butenes.

Shell-and-tube apparatus having an intermediate tube plate

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Tokyo, Japan

Teruo Nagai