Patent ID: 8049049
Filing Date: 2011-11-01
Classification: C10G,C10J,C10L,Y02E

Abstract:
1. A method of producing a biomass water slurry, comprising: an upgrading step for performing an upgrading treatment of a cellulose based biomass raw material with an oxygen/carbon atomic ratio of at least 0.5, in the presence of water and under a pressure of at least saturated water vapor pressure, wherein the oxygen/carbon atomic ratio of said biomass raw material is reduced to a range of between 0.1 and 0.38, a separation step for separating an upgraded reactant obtained from said upgrading step into a solid component and a liquid component, and said solid component being dewatered until its concentration becomes at least 50 mass %, a crushing step for crushing said solid component obtained from said separation step to an average particle size of no more than 30 μm using a crushing device, and a mixing step for adding additives, and where necessary water, to said solid component, and mixing, wherein said crushing step and said mixing step are performed either simultaneously or sequentially in this order.