Modified Triglyceride Fuels Eliminating Glycerol Waste
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Solution Overview
Problem
Current biodiesel production generates high amounts of contaminated glycerol as a byproduct, leading to environmental issues and increased production costs, as it requires energy-intensive dehydration and purification processes, limiting the economic viability of biodiesel.
Innovation Solution
A method involving the partial reaction of triglycerides with short-chain carboxylic acid esters to reduce molecular mass and viscosity, eliminating the need for glycerol production by converting triglycerides into modified structures suitable for direct use as fuels or additives, thereby avoiding the generation of glycerol byproducts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If triglycerides undergo complete alcoholysis to produce biodiesel, then fuel quality is improved, but glycerol byproduct is generated causing environmental pollution and increased costs
Solution Approach 1:
The invention extracts only the necessary portion of the alcoholysis reaction to achieve the desired fuel quality, stopping at partial conversion rather than complete alcoholysis. This allows production of fuel meeting specifications while avoiding excessive glycerol byproduct generation.
Solution Approach 2:
The patent applies partial action by controlling the alcoholysis reaction to reach optimal fuel quality without proceeding to complete conversion. By using stoichiometric or near-stoichiometric amounts of alcohol and controlling reaction conditions, the process achieves sufficient fuel quality improvement while minimizing glycerol waste.
2Object-generated harmful factors
If glycerol byproduct is purified and dehydrated, then environmental impact is reduced, but energy consumption and production costs increase
Solution Approach 1:
The invention takes preliminary action to prevent excessive glycerol formation in the first place by controlling the alcoholysis reaction extent. This preventive approach eliminates the need for energy-intensive glycerol purification and dehydration processes while still achieving environmental compliance.
Solution Approach 2:
The patent converts the potential harm of glycerol byproduct into a benefit by using the byproduct in controlled amounts as a fuel additive or blending component, thereby eliminating waste disposal needs and energy-intensive purification processes while maintaining environmental compliance.
3Ease of manufacture
If triglycerides are used directly as fuel, then production cost is reduced, but viscosity is too high for proper atomization in modern engines
Solution Approach 1:
The invention changes the molecular parameters of triglycerides through controlled partial alcoholysis, modifying the fatty acid chain composition to reduce viscosity while maintaining cost-effectiveness. This partial chemical modification achieves the necessary rheological properties for engine operation without complete conversion to biodiesel.
Solution Approach 2:
The patent creates a composite fuel material consisting of partially modified triglycerides with optimized fatty acid composition. This composite structure combines the cost advantages of triglyceride-based fuels with improved flow and atomization properties achieved through selective molecular modification.
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
This approach allows for the total utilization of triglycerides as fuel, reducing production costs and environmental impact by eliminating glycerol waste, increasing biofuel yield from biomass, and simplifying the manufacturing process while maintaining high energy content.
Implementation Method 1
partial reaction of triglycerides with short-chain carboxylic acid esters to reduce molecular mass and viscosity
Data Source
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AI summary
The invention is directed to the use of triglycerides of modified structure, mostly known per se, as fuels, combustibles, or fuel and/or combustible additives, and to the fuels comprising them. In the description and in the claims the expression "fuel" means liquid motor propulsion materials and/or liquid combustibles. In addition, the invention is directed to new procedures for the simple, economical and environment protecting preparation of the triglycerides of modified structure and/or the mixtures comprising them, and at the same time the glycerol produced in the known procedures in large amounts can be utilized.