Integrated Lignocellulosic Hydrolysis and Fermentation Process
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current processes for alcohol production from lignocellulosic material are inefficient and costly, with suboptimal utilization of biomass resources and high by-product treatment requirements, limiting productivity and increasing operational costs.
Innovation Solution
An integrated process that includes enzymatic hydrolysis, solid/liquid separation, fermentation, propagation of microorganisms, and enzyme production, optimizing the use of lignocellulosic biomass through valorization of side streams and integration of conversion processes to enhance energy efficiency and reduce waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional hydrolysis and fermentation processes are used separately, then process simplicity is maintained, but productivity and resource utilization are insufficient
Solution Approach 1:
The patent combines hydrolysis and fermentation processes into an integrated system where cellulolytic enzymes convert cellulose to sugars and microorganisms simultaneously or sequentially convert sugars to alcohol, maximizing resource utilization and productivity within a unified process framework
Solution Approach 2:
The integrated process design allows the same system to perform multiple functions: enzymatic hydrolysis of cellulose, sugar release, and alcoholic fermentation, thereby improving overall resource efficiency and reducing the need for separate dedicated equipment for each process step
2Loss of substance
If biomass resources are not fully utilized, then process simplicity is maintained, but loss of substance increases
Solution Approach 1:
The patent separates the hydrolyzed biomass into different fractions (e.g., liquid fraction containing sugars and solid fraction containing residual biomass) that can be independently processed and valorized through different pathways, maximizing resource utilization while managing complexity through modular processing
Solution Approach 2:
The integrated process recovers and utilizes components that would otherwise be discarded, such as converting residual solid biomass into additional alcohol through secondary fermentation or using it as substrate for other value-added products, thereby minimizing substance loss
3Object-generated harmful factors
If by-products are not managed effectively, then process simplicity is maintained, but object-generated harmful factors increase
Solution Approach 1:
The patent converts by-products that would normally require treatment into valuable resources by using them as substrates for additional fermentation processes or as feedstock for producing other value-added chemicals, thereby transforming harmful waste streams into beneficial products
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The integrated process improves the efficiency and productivity of alcohol production from lignocellulosic material, reducing costs and maximizing the utilization of biomass resources by effectively managing by-products and energy usage.
Implementation Method 1
cellulose present in the lignocellulosic material is partly (typically 30 to 95%, dependable on enzyme activity and hydrolysis conditions) converted into reducing sugars by cellulolytic enzymes
Implementation Method 2
the sugars are then converted into valuable fermentation products, such as ethanol and succinic acid, by microorganisms, like yeast
Data Source
AI summary
The invention relates to an integrated process for alcohol production from lignocellulosic material.