Low-CO2 Spark-Ignition Fuel Composition for Storage Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing gasoline-type fuels for new engines face challenges in meeting stringent requirements for cleanliness, storage stability, climate adaptability, safety, and environmental impact, particularly when formulated from bio-based sources, while avoiding toxic additives like organometallic compounds.
Innovation Solution
A fuel composition comprising 70-95% hydrocarbons (70-95% of aromatic compounds, non-cyclic paraffins, and naphthenes) and 5-30% ethers, with a high bio-based content, achieving high octane ratings and stability, and being free from harmful additives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional gasoline-type fuels are used in new engines, then the engines can operate, but the fuels fail to provide sufficient cleanliness protection and storage stability during extended periods before first use
Solution Approach 1:
The fuel composition is formulated in advance with specific additives and chemical components that provide protective action during the storage period before the engine is first used. The preliminary formulation ensures oxidation resistance and cleanliness protection are already in place before the engine operates, addressing the extended storage requirement of several months.
2Reliability
If original equipment fuel is formulated to meet stringent cleanliness and stability requirements, then new engines are protected during storage and assembly line operation, but the fuel formulation becomes more complex and costly
Solution Approach 1:
The patent modifies specific chemical parameters of the fuel composition, including the ratio of different hydrocarbon components, additive concentrations, and chemical stability parameters. By adjusting these parameters within optimized ranges, the fuel achieves enhanced protection properties without requiring fundamentally complex formulation approaches.
3Object-generated harmful factors
If bio-based fuels are used to reduce greenhouse gas emissions, then environmental impact is reduced, but fuel performance and stability may be compromised
Solution Approach 1:
The fuel composition uses a composite approach by combining bio-based hydrocarbon components with carefully selected additives and stabilizers. This composite formulation maintains the environmental benefits of bio-based content while ensuring the fuel meets performance and stability requirements through the synergistic combination of different material components.
4Adaptability or versatility
If the vehicle is stored and shipped to different geographical locations with varying climates, then global market coverage is achieved, but the fuel must maintain stability and performance across extreme temperature variations
Solution Approach 1:
The fuel composition includes stabilizing components and additives that are formulated in advance to cushion against the effects of extreme temperatures and climate variations. This prior cushioning ensures the fuel maintains its chemical stability and performance characteristics regardless of whether the vehicle is stored in hot or cold climates before first use.
Data Source
AI summary
The present invention relates to a fuel composition comprising: (i) from 70 to 95% by weight of a mixture of hydrocarbons comprising: a) from 5 to 30% by weight of aromatic compounds; b) from 50 to 90% by weight of non-cyclic paraffins containing at least 4 carbon atoms made up of a mixture of n-paraffins and isoparaffins with a weight ratio of the quantity of iso-paraffins to the quantity of n-paraffins of 8 or higher; and c) from 1 to 15% by weight of naphthenes; and (ii) from 5 to 30% by weight of one or more ethers, this composition having a density at 15°C, measured according to standard EN ISO 12185, within the range from 720 to 745 kg/m3 and an olefin content of 2% or less by weight relative to the total weight of the composition. This composition is useful for powering a spark-ignition engine, and in particular as an "OEM" fuel for vehicles equipped with new engines.