Modified Fuel Blend with Triglyceride for Stable Combustion
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Solution Overview
Problem
Current alternative fuels, such as ethanol and methanol, face issues like high evaporation rates, phase stability problems, and the need for engine modifications, which restrict their use due to sensitivity to water and emissions concerns.
Innovation Solution
Development of modified fuels comprising a base fuel, a lower alcohol, and a triglyceride derived from a fatty acid with a hydroxyl group, which form a homogeneous solution without surfactants or additional naphtha, enhancing efficiency and reducing emissions without requiring engine modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ethanol is blended with hydrocarbons to increase efficiency and reduce emissions, then combustion performance improves, but evaporation rate increases to an unacceptably high level
Solution Approach 1:
The patent changes the chemical parameters of the fuel blend by introducing a specific triglyceride component with defined molecular structure (containing hydroxyl groups) and controlling the ratio of alcohol to hydrocarbon components. This parameter modification reduces the vapor pressure and evaporation rate of the blended fuel while maintaining combustion efficiency, directly resolving the contradiction between improved combustion performance and excessive evaporation.
2Productivity
If ethanol is blended with hydrocarbons to improve combustion properties, then efficiency increases, but phase stability deteriorates due to water sensitivity
Solution Approach 1:
The triglyceride component acts as an intermediary substance that is chemically compatible with both the alcohol component and the hydrocarbon base fuel. It forms a molecular bridge that stabilizes the blend by reducing the affinity between water and the alcohol component, preventing phase separation while maintaining the combustion benefits of alcohol-blended fuels.
Solution Approach 2:
The patent creates a composite fuel system combining multiple components (alcohol, triglyceride, and hydrocarbon base fuel) in specific proportions. This composite formulation leverages the complementary properties of each component: the combustion efficiency of alcohol, the stability-modulating effect of triglyceride, and the base fuel matrix, achieving both improved combustion and enhanced phase stability.
3Productivity
If methanol is used to increase octane number and reduce emissions, then combustion quality improves, but engine damage risk increases requiring modifications
Solution Approach 1:
The patent modifies the fuel formulation by using a specific triglyceride component with hydroxyl groups that changes the combustion characteristics and physical properties of the blend. This parameter modification allows the use of lower alcohol concentrations (e.g., E15 or E30) that maintain high octane numbers and reduced emissions while staying within the tolerance limits of conventional engine materials, thereby improving combustion quality without requiring engine modifications.
4Object-generated harmful factors
If alcohol components are added to fuel to reduce emissions, then environmental performance improves, but water affinity increases leading to phase separation
Solution Approach 1:
The triglyceride component serves as a water-repelling intermediary that reduces the overall water affinity of the alcohol-containing fuel blend. By incorporating this hydrophobic component, the fuel maintains its ability to reduce emissions through alcohol combustion while preventing water-induced phase separation, thus simultaneously achieving environmental improvement and compositional stability.
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 modified fuels burn more efficiently, produce fewer emissions, and are stable, offering increased miles per gallon and horsepower while maintaining compatibility with existing engines and storage conditions.
Implementation Method 1
a triglyceride derived from a fatty acid with a hydroxyl group... which form a homogeneous solution without surfactants or additional naphtha
Data Source
AI summary
Described herein are modified fuels with improved properties. The modified fuels are more efficient when compared to conventional fuels such as gasoline. Additionally, the modified fuels burn more efficiently and produce fewer emissions. Finally, the modified fuels also do not require any modifications to existing engines.