Biomass pretreatment method of steaming coupling double screws, cellulose-containing biomass and application
The biomass pretreatment method using a steam-coupling twin-screw extruder solves the problems of high energy consumption and poor chemical penetration in dense forest biomass. It achieves efficient decomposition and low-energy pretreatment of lignocellulose, improves the accessibility of cellulase and the saccharification rate, and has the advantages of green refining.
Patent Information
- Application Number
- CN202610489238.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-14
- Publication Date
- 2026-06-02
AI Technical Summary
Existing technologies for processing dense forest biomass have drawbacks such as high energy consumption from physical crushing and difficulty in chemical penetration. Traditional steam explosions can easily lead to the degradation of hemicellulose, generating fermentation inhibitors, and the discharge of high-concentration waste liquid causes environmental pollution.
A biomass pretreatment method using steam coupled with a twin-screw extruder is employed. The lignin-carbohydrate complex is softened by steam treatment, and then crushed by twin-screw extrusion. This achieves efficient deconstruction and pore expansion of lignocellulose, reduces energy consumption for mechanical dissociation, and promotes the penetration of chemical agents.
It significantly improves the accessibility of cellulase and the enzymatic saccharification rate, reduces the overall economic cost and environmental impact, and provides a large-scale green refining pathway for lignocellulose.