Polyoxyalkylene Additive for Bioethanol Fermentation Efficiency
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Solution Overview
Problem
Bioethanol production efficiency is low in commercial-scale processes, and existing methods do not adequately address this issue.
Innovation Solution
The use of a polyoxyalkylene compound with a Griffin's HLB value between 0 and 6, combined with a polyoxyalkylene polyol, as an additive in the bioethanol fermentation process, specifically during the fermentation of saccharide, starch, or cellulose-based raw materials, to enhance production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional fermentation methods are used for commercial-scale bioethanol production, then the production process can be implemented, but the production efficiency is low
Solution Approach 1:
The patent applies parameter changes by selecting specific polyoxyalkylene compounds with HLB values in the range of 3-7, which optimizes the surfactant properties for fermentation. This parameter optimization enhances yeast cell membrane permeability and metabolic activity, thereby improving production efficiency and reducing fermentation time
Solution Approach 2:
The polyoxyalkylene compound acts as an intermediary substance that mediates between the fermentation environment and yeast cells. It improves nutrient uptake and metabolic efficiency by modifying cell membrane properties, serving as a bridge that enhances the overall fermentation process without being consumed
2Productivity
If conventional fermentation methods are used, then the process can be maintained simply, but the production efficiency is not enough
Solution Approach 1:
The patent uses parameter changes by precisely controlling the HLB value range (3-7) of the polyoxyalkylene compound, which provides optimal balance between hydrophilic and hydrophobic properties. This parameter optimization achieves high production efficiency while maintaining relatively simple additive composition
Solution Approach 2:
The patent employs composite materials by combining polyoxyalkylene compounds with specific molecular weight ranges (500-5000 g/mol) and specific HLB values. This composite approach creates an optimized additive system that enhances fermentation efficiency without requiring complex multi-component formulations
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 additive significantly improves bioethanol production efficiency, allowing for higher yields and more efficient fermentation processes.
Implementation Method 1
a fermentation step of fermenting the raw material by adding the additive for a bioethanol fermentation process to a fermentation liquid
Data Source
AI summary
An object of the present invention is to provide an additive that can improve the production efficiency. The present invention is an additive for a bioethanol fermentation process comprising a polyoxyalkylene compound (A) having a Griffin's HLB value in the range of 0 to 6 and a polyoxyalkylene polyol (B). The compound (A) is preferably a mixture of a compound represented by a general formula (1) and a compound represented by a general formula (2). R1O-(AO)m-R2 (1). R3O-(AO)n-(EO)p-R4 (2). R1 and R3 represent alkyl or alkenyl, R2 and R4 represent a hydrogen atom or a monovalent organic group, AO represents oxyalkylene having a carbon number of 3 to 18, or a reaction residue of glycidol, an alkyl glycidyl ether or alkenyl glycidyl ether, EO represents oxyethylene, m and n are 1 to 100, and p is 3 to 10.