TWO-STEP ETHANOL AND 1-PROPANOL PREPARATION METHOD USING CELLULOSE

摘要

Provided is a two-step ethanol and 1-propanol preparation method using cellulose, comprising the following steps: (1) in an alcohol solvent system using cellulose as the raw material, reacting with alcohol under the effect of a first catalyst to produce glycolate and lactate; (2) adding a second catalyst to the mixed liquid product obtained from step (1), and performing hydrogenation by introducing hydrogen so as to obtain ethanol and 1-propanol. In the present invention, by means of the two-step reactions performed in alcohol, namely, esterification and hydrogenation, the cellulose conversion rate may reach 100% and the production rate for ethanol and 1-propanol may reach 70% or higher while reducing separation cost, thereby providing a new approach to comprehensive and highly effective cellulose usage.