| abstract |
The invention provides a hydrothermal and sulfonating combined method for pretreatment and separation of lignocellulose biomass. The method comprises the steps of 1, mechanically crushing the lignocellulose biomass into a proper particle size, and then conducting preimpregnation; 2, mixing solid obtained from the step 1 with water or vapor for hydrothermal pretreatment; 3, mixing a hydrothermally pretreated and cleaned solid material obtained from the step 2 with sulfonating pretreatment liquor medicine for sulfonating pretreatment. According to the method, hydrothermal pretreatment and sulfonating pretreatment are combined, hemicelluloses can be effectively removed, lignin can be effectively removed, and then the content of substrate cellulose is increased remarkably and enzyme hydrolysis efficiency is improved greatly. |