METHOD FOR PRODUCING ETHANOL FROM RAW MATERIAL CONTAINING CASSAVA RESIDUES

摘要

A method for producing ethanol from raw material containing cassava residues comprises the steps of: mixing raw material containing cassava residues with enzyme, and enzymolyzing the cellulose in the raw material to obtain enzymolysis product, wherein the mixing of the enzyme and the raw material comprises mixing a first batch of the raw material with the enzyme to obtain a mixture, and then continuously adding the remaining raw material to the mixture at such a speed that the content of the raw material containing cassava residues in the reaction system is 150 g/L or less, and wherein the first batch of the raw material is 10 to 30wt% of the total raw material; and fermenting the enzymolysis product. The inventive method can increase utilization rate of the raw material containing cassava residues, and has high ethanol yield.