Sweet sorghum alcohol making method

Abstract

The invention discloses a sweet sorghum alcohol making method, and belongs to the technical field of renewable resources. The method includes the four steps of sweet sorghum fresh straw treatment, enzymolysis, ammonia water recycling and alcohol making. Juice and residues do not need to be separated after straw is squeezed, complex steps are omitted, ammonia water and ultrasonic oscillation are added for pretreatment of the straw, lignin blocking can be effectively eliminated, cellulose and hemicellulose are arranged for conducting complete enzymolysis, the situation that furfural and other harmful matter are generated due to modification of part of xylose under high-temperature conditions through a steam explosion pretreatment method can not occur, the ammonia water can be recycled through a physical method, environment pollution is not caused, and production cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of renewable energy, in particular to a method for preparing sweet sorghum alcohol. Background technique [0002] Due to the excessive exploitation of oil, our country is already facing a serious energy crisis. The use of renewable bio-energy to replace the original non-renewable energy has become the key to China's future energy strategy. Therefore, in recent years, my country has gradually increased its investment in fuel ethanol production. At present, my country's fuel ethanol production is mainly based on grain starchy raw materials such as corn. However, my country has a large population, and the production cost of producing fuel ethanol from food-based starchy raw materials is still high. In December 2006, the National Development and Reform Commission issued a decree to prohibit new grain-based ethanol production projects, limit the production capacity of existing grain-based ethanol enterprises, a...

AI Technical Summary

Problems solved by technology

[0005] Chinese patent CN103773814A discloses a method for preparing fuel ethanol from sweet sorghum. The method is to separate the fresh stalks of sweet sorghum from the juice and slag, then concentrate the sugar juice, hydrolyze the sweet sorghum slag, and ferment to prepare ethanol after mixing. Although the raw materials can be fully utilized Production of ethanol, but there are many operating steps in the production process, which prolongs the production period, and the steam explosion pretreatment method has high requirements for equipment, high energy consumption, and increased cost. Under high temperature conditions, some xylose denaturation will produce Harmful substances such as aldehydes