Paraffinic Electrotechnical Fluid Composition for Low Conductivity
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Solution Overview
Problem
Current electrotechnical fluids do not meet the requirements for sustainable, biosourced alternatives with low conductivity and improved characteristics such as wide operational temperature range, suitable kinematic viscosity, and minimal environmental impact.
Innovation Solution
A hydrocarbon composition comprising more than 90 wt-% paraffins in the C17-C18 range, with a ratio of C18 i-paraffins to C18 n-paraffins greater than 40, produced through hydrodeoxygenation and isomerization of renewable feedstock followed by fractionation to achieve a boiling range of 275° C. to 300° C.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electrotechnical fluids are used, then basic insulating and cooling functions are provided, but sustainability, low conductivity, and improved characteristics are not achieved
Solution Approach 1:
The patent changes the chemical composition parameters by specifying a precise carbon number distribution (C15-C20 paraffins with specific weight percentages) and isomerization ratio (i-paraffins to n-paraffins greater than 40:1), thereby achieving low conductivity and improved electrotechnical performance while maintaining environmental compatibility
Solution Approach 2:
The patent creates a composite hydrocarbon composition from renewable raw materials through hydrodeoxygenation and isomerization processes, combining multiple paraffinic components in specific proportions to achieve superior electrotechnical properties that single components cannot provide
2Ease of operation
If isoparaffinic content is increased to improve fluidity and heat transfer, then operational characteristics are enhanced, but manufacturing complexity increases
Solution Approach 1:
The patent applies preliminary isomerization treatment during the production process to convert n-paraffins to i-paraffins before final product formulation, ensuring the desired isomerization ratio is achieved upfront rather than requiring complex post-processing or blending operations
Solution Approach 2:
The patent controls the isomerization reaction parameters (temperature, pressure, catalyst type, reaction time) to achieve a specific i-paraffin to n-paraffin ratio greater than 40:1, optimizing fluidity and heat transfer properties while maintaining a manageable manufacturing process
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 composition exhibits surprisingly good properties as an electrotechnical fluid with low conductivity, enhanced fluidity, and improved heat transfer, reducing operating temperatures and extending the life and safety of electrical devices.
Implementation Method 1
conducting at least one hydrodeoxygenation reaction and at least one isomerization reaction of a renewable raw material to obtain a renewable paraffinic feed
Implementation Method 2
conducting at least one hydrodeoxygenation reaction and at least one isomerization reaction of a renewable raw material to obtain a renewable paraffinic feed
Implementation Method 3
subjecting the renewable paraffinic feed to at least one separation process to recover a hydrocarbon composition having a boiling range within a range from about 275° C. to about 300° C.
Data Source
AI summary
An electrotechnical fluid composition, comprising more than 90 wt-% paraffins in the C17-C18 range, based on the total weight of the composition, is described. The ratio of the amount of C18 i-paraffins to the amount of C18 n-paraffins is more than 40, based on the weight of the C18 i-paraffins and the weight of the C18 n-paraffins in the composition.