Branched Paraffin Gasoline Component for Higher Octane Blending
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Solution Overview
Problem
Existing renewable gasoline fuel components have low octane ratings and are not suitable for use in high proportions in gasoline fuel compositions, necessitating an improvement in their quality and blendability.
Innovation Solution
A gasoline fuel component comprising a high proportion of n-paraffins, monobranched i-paraffins, and multiple-branched i-paraffins, with a specific weight ratio of C8 i-paraffins to C8 n-paraffins, is produced through a process involving hydroisomerization and hydrocracking of paraffinic feed, enhancing octane ratings and blendability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If renewable gasoline fuel components are produced from renewable raw materials, then the bio-content and sustainability are improved, but the octane ratings remain relatively low
Solution Approach 1:
The patent applies parameter changes by controlling the weight ratio of C8 i-paraffins to C8 n-paraffins to be at least 4.0, and optimizing the distribution of C4-C9 paraffins. This specific compositional parameter adjustment significantly improves the octane rating of renewable gasoline fuel components while maintaining their renewable origin, thus resolving the contradiction between sustainability and performance quality.
2Quantity of substance
If the proportion of renewable gasoline fuel component in gasoline fuel composition is increased, then the bio-content is improved, but the blendability and combustion properties deteriorate due to low octane rating
Solution Approach 1:
By changing the compositional parameters to achieve a weight ratio of C8 i-paraffins to C8 n-paraffins of at least 4.0, and optimizing C4-C9 paraffin distribution, the patent improves both octane rating and blendability. This enables higher proportions of renewable fuel components (at least 1.0 wt-%, preferably at least 2.5 wt-%, further preferably at least 5.0 wt-%) to be incorporated into gasoline compositions while maintaining combustion performance.
3Manufacturing precision
If the quality of renewable gasoline fuel component is improved through specific composition control, then the octane rating is improved, but the production process complexity increases
Solution Approach 1:
The patent focuses on controlling specific compositional parameters (weight ratio of C8 i-paraffins to C8 n-paraffins, distribution of C4-C9 paraffins) rather than overhauling the entire production process. This targeted parameter control approach achieves high manufacturing precision in terms of composition quality while minimizing increases in production process complexity, as it can be implemented within existing hydrocarbon processing frameworks.
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 solution provides gasoline fuel components with improved octane ratings and better combustion properties, enabling higher incorporation into gasoline fuel compositions without compromising performance, and offers versatility in various industrial applications.
Implementation Method 1
Production of the gasoline fuel component may employ a certain process comprising a combination of hydroisomerisation and hydrocracking of a paraffinic feed
Implementation Method 2
Production of the gasoline fuel component may employ a certain process comprising a combination of hydroisomerisation and hydrocracking of a paraffinic feed
Data Source
AI summary
Herein is disclosed a gasoline fuel component including predominantly C4-C9 n-paraffins, C4-C9 mono-branched i-paraffins and C4-C9 multiple-branched i-paraffins. In the gasoline fuel component, a weight ratio of at least certain i-paraffins to certain n-paraffins is higher than in prior art gasoline components. The present gasoline fuel component can provide improved blendability, octane ratings and combustion properties.