Ionic Liquid Oxygen Generator Low-Temperature Decomposition
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Solution Overview
Problem
Existing oxygen generators, particularly those using peroxide-based systems, face challenges such as the inability to produce oxygen below 0°C due to water freezing and the complexity of structures required to manage effervescing reactions, leading to weight, size, and reliability issues.
Innovation Solution
A device utilizing an ionic liquid formulation with a metallate anion to decompose peroxide compounds at low temperatures, maintaining the oxygen source and ionic liquid physically separated until contact is established, allowing for continuous and reliable oxygen production without toxic byproducts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If peroxide-based oxygen generators use aqueous solutions for decomposition, then oxygen can be produced at low temperatures, but the system becomes complex and unreliable due to water freezing below 0°C and effervescing reactions
Solution Approach 1:
The patent introduces an ionic liquid as an intermediary medium to replace water in the peroxide decomposition system. This ionic liquid enables the reaction to proceed at low temperatures without freezing, while also suppressing effervescing reactions. The ionic liquid acts as a mediator between the peroxide compound and the decomposition process, providing both thermal stability and reaction facilitation without the drawbacks of aqueous systems.
2Productivity
If chlorate candles are used for oxygen generation, then oxygen can be produced at high temperatures, but the system requires heavy heat insulation and produces toxic chlorine byproducts
Solution Approach 1:
The patent fundamentally changes the temperature parameter of the oxygen generation process by using ionic liquids as the reaction medium. This parameter change allows the decomposition reaction to occur at low temperatures instead of high temperatures, thereby eliminating the need for heavy heat insulation and preventing the formation of toxic chlorine byproducts while maintaining efficient oxygen production.
3Reliability
If oxygen source and catalyst are kept physically separated, then system safety and storage stability are improved, but device complexity increases due to additional separation mechanisms
Solution Approach 1:
The patent merges the catalyst and the reaction medium into a single integrated ionic liquid system. The ionic liquid serves dual functions as both the solvent and the catalyst, eliminating the need for separate catalyst compartments or complex separation mechanisms. This merging approach maintains storage stability by keeping the reactive components separated in their stable forms, while simplifying the overall device structure through functional integration.
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 enables breathable oxygen generation at low temperatures, reducing weight and size requirements, and ensuring continuous operation with minimal structural complexity, while avoiding toxic components like chlorine.
Implementation Method 1
an ionic liquid formulation comprising an ionic liquid having a cation and a metallate anion, to decompose peroxide compounds at low temperatures
Implementation Method 2
an ionic liquid formulation comprising an ionic liquid having a cation and a metallate anion, to decompose peroxide compounds
Data Source
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AI summary
The invention relates to a device for generating oxygen, comprising at least one reaction chamber (2) for housing a composition for generating oxygen, the composition comprising an oxygen source formulation (7) and a ionic liquid formulation (8), the oxygen source formulation comprising a peroxide compound, and the ionic liquid formulation comprising a ionic liquid having a cation and a metallate anion, means (5, 6) for maintaining the oxygen source formulation and the ionic liquid formulation physically separated from each other, means (18) for establishing physical contact of the oxygen source formulation and the ionic liquid formulation, and means for allowing oxygen to exit the reaction chamber.