Alkyl Cyclohexane Coolant Composition for High-Density Immersion Cooling
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Solution Overview
Problem
There is a need for improved cooling fluids that exhibit enhanced densities, viscosities, viscosity indexes, and/or pour points compared to existing poly alpha olefins (PAOs) used in industrial applications.
Innovation Solution
The process involves alkylating aromatic hydrocarbons such as benzene, toluene, or xylene with C6 to C24 olefins to produce an alkylation product, followed by hydrogenating it to create C16 to C30 alkyl cyclohexanes, which are then used as immersion coolants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If poly alpha olefins (PAOs) are used as cooling fluids, then lubricating properties and thermal stability are improved, but density, viscosity, viscosity index, and pour point are insufficient
Solution Approach 1:
The patent changes the molecular structure parameters by hydrogenating the aromatic rings of alkylated aromatic hydrocarbons to form saturated cyclohexane structures. This chemical transformation modifies the physical properties, achieving the desired density and viscosity characteristics while maintaining thermal stability through the saturated hydrocarbon structure.
Solution Approach 2:
The patent creates composite molecular structures by combining saturated cyclohexane rings with long alkyl chains (C6 to C24). This composite structure integrates the thermal stability of saturated hydrocarbons with the lubricating properties provided by the alkyl chains, achieving a balance of properties that satisfies both reliability and quantity requirements.
2Quantity of substance
If aromatic hydrocarbons are alkylated with olefins and hydrogenated, then improved cooling fluid properties are achieved, but the synthesis process complexity increases
Solution Approach 1:
The synthesis process is divided into distinct sequential steps: (1) alkylation of aromatic hydrocarbon with olefin to form alkylated aromatic product, (2) hydrogenation of the aromatic ring to form saturated cyclohexane. This segmentation allows each step to be optimized independently and facilitates process control and scaling.
Solution Approach 2:
The alkylated aromatic hydrocarbon serves as an intermediary compound that bridges the starting materials (aromatic hydrocarbon and olefin) and the final product (saturated cyclohexane derivative). This intermediary structure allows for controlled molecular construction and provides a stable platform for the subsequent hydrogenation step.
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 resulting alkyl cyclohexanes offer improved thermal conductivity and specific heat properties, making them suitable for advanced cooling applications.
Implementation Method 1
alkylating i) a reactant aromatic hydrocarbon including benzene, toluene, xylene, or combinations thereof with ii) a C6 to C24 olefin, to produce an alkylation product including a C16 to C30 alkyl aromatic hydrocarbon
Implementation Method 2
hydrogenating the C16 to C30 alkyl aromatic hydrocarbon to produce a hydrogenated product including a C16 to C30 saturated hydrocarbon
Data Source
AI summary
Production of C16 to C30 saturated hydrocarbon by alkylating a reactant aromatic hydrocarbon with a C6 to C24 olefin to produce alkylation product comprising a C16 to C30 alkyl aromatic hydrocarbon and subsequent hydrogenation of the alkylation product to produce hydrogenated product comprising a C16 to C30 saturated hydrocarbon. The C16 to C30 alkyl aromatic hydrocarbon comprises an aromatic C6 ring and one or more C6 to C24 alkyl groups attached thereto. The C16 to C30 saturated hydrocarbon comprises a saturated C6 ring and one or more C6 to C24 alkyl groups attached thereto.