Ionic Liquid Peroxide Oxygen Generation Composition
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Solution Overview
Problem
Existing oxygen generation systems, such as chlorate candles and peroxide-based generators, face challenges including high temperature requirements, production of toxic byproducts, system instability, and inability to operate below 0°C, leading to unreliable and inefficient oxygen supply in emergency situations.
Innovation Solution
A composition comprising a peroxide compound, an ionic liquid, and a metal salt, where the ionic liquid remains in a liquid state from -10°C to +50°C, facilitating oxygen release at low temperatures without toxic byproducts, and a method involving physical separation of constituents until activation to prevent premature oxygen generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If chlorate candles are used for oxygen generation, then oxygen can be produced, but high temperatures (450°C-700°C) are required and toxic chlorine byproducts are generated
Solution Approach 1:
The invention changes the reaction temperature parameter from high (450-700°C for chlorate candles) to low (below 150°C, preferably below 100°C) by using peroxide-based chemistry instead of chlorate decomposition, thereby eliminating the formation of toxic chlorine byproducts
Solution Approach 2:
The invention converts the harmful high-temperature decomposition process into a beneficial low-temperature reaction using peroxides as oxygen source, which naturally produces only water and oxygen as byproducts, eliminating toxic chlorine emissions
2Productivity
If peroxides are decomposed in aqueous solutions, then oxygen can be generated, but water freezes at 0°C preventing operation below freezing temperatures
Solution Approach 1:
The invention changes the solvent parameter from water (freezing point 0°C) to ionic liquid (remaining liquid down to -10°C or lower), enabling oxygen generation to proceed in subfreezing conditions where aqueous systems fail
Solution Approach 2:
The invention introduces ionic liquid as an intermediary solvent that mediates between the peroxide oxygen source and metal salt catalyst, providing a liquid medium for the reaction to proceed at low temperatures without freezing
3Productivity
If peroxide decomposition is used, then oxygen production occurs, but vehement effervescing requires complicated device structure
Solution Approach 1:
The invention uses small amounts of ionic liquid (excessive relative to minimal requirement) to completely suppress effervescing, allowing simple device structure while maintaining effective oxygen generation
4Productivity
If chlorate candles operate at high temperatures, then oxygen decomposition occurs, but effective heat insulation is required resulting in weight and size penalty
Solution Approach 1:
The invention changes the operating temperature parameter from high (450-700°C) to low (below 150°C), eliminating the need for heavy heat insulation and reducing device weight and size
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 reliable, continuous, and efficient production of breathable oxygen over a wide temperature range, including subfreezing conditions, with a significant flow rate and prolonged operation, while avoiding toxic components and system instability.
Implementation Method 1
Decomposition of the peroxides yields oxygen, and the decomposition reaction can be started by contacting the peroxide compounds with an appropriate enzyme or transition metal catalyst
Implementation Method 2
the ionic liquid is in the liquid state at least in a temperature range from -10°C to +50°C
Data Source
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AI summary
The present invention is directed to a composition for generating oxygen, comprising at least one oxygen source, at least one ionic liquid, and at least one metal salt, wherein the oxygen source comprises a peroxide compound, the ionic liquid is in the liquid state at least in a temperature range from -10°C to +50°C, and the metal salt has an organic and/or an inorganic anion, and comprises one single metal or two or more different metals. The present invention also relates to methods for generating oxygen, and to the use of ionic liquids in oxygen generating compositions.