Hokkaido University

Idemitsu Kosan Company, Limited

Metawater Co., Ltd.

Teruoki Tago

Takao Masuda

Yoshihito Koyama

Naonori Ryumon

Satoshi Kajitani

Tetusya Yanase

Hirokazu Tsuboi

The method for producing a cellulose-containing solid material of the invention includes treating a botanical biomass in a mixed solvent of water and at least one alcohol selected from aliphatic alcohols having 4 to 8 carbon atoms, under condition A (the concentration of the raw material to be charged into the mixed solvent is 1% by mass or more and 50% by mass or less), condition B (the reaction temperature is 100&#xb0; C. or higher and 350&#xb0; C. or lower), and condition C (the reaction time is 0.1 hours or more and 10 hours or less), followed by solid-liquid separation after the treatment to give a cellulose-containing solid material. Accordingly, there are provided a method for producing a cellulose-containing solid material excellent in saccharification performance and a method for producing glucose from the cellulose-containing solid material.

Method for producing cellulose-containing solid material and method for producing glucose

Provided is a method for producing a lignin degradation product that includes (1) a degradation step of degrading a raw material containing a plant biomass, in a mixed solvent of water and an aliphatic alcohol having from 4 to 10 carbon atoms, which separates into two phases at 0&#xb0; C. or higher and 50&#xb0; C. or lower, under the following conditions, and (2) after the degradation step, a liquid-liquid separation step of separating the lignin degradation product-containing organic phase from the solvent that has separated at the temperature for two-phase separation. The method produces a lignin degradation product at a high yield from lignin or a material containing lignin. Condition A: The concentration of the raw material to be in the mixed solvent is 1% by mass or more and 20% by mass or less. Condition B: The reaction temperature is 100&#xb0; C. or higher and 350&#xb0; C. or lower. Condition C: The reaction time is 0.1 hours or more and 10 hours or less.

Method for manufacturing lignin degradation product

The present invention provides a technique for producing acetone in a high yield from hydrated ethanol derived from biomass, without requiring a large amount of energy. Hydrated ethanol derived from biomass is heated to a reaction temperature of 400&#xb0; C. or higher in the presence of a Zr&#x2014;Fe catalyst, thereby producing acetone. The reaction temperature is preferably from 450 to 550&#xb0; C., and the Zr&#x2014;Fe catalyst preferably contains 5 to 10% by mass of Zr. The present invention allows purification of hydrated acetone without requiring purification of the hydrated ethanol.

Process for producing acetone from bioethanol

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Sapporo, Japan

Teruoki Tago