Methane Purification Temperature Window for Ozone-Catalyst Stability
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Solution Overview
Problem
Conventional methods face challenges in effectively oxidizing methane in the presence of ozone due to temperature-dependent reactions and water condensation on catalysts, which hinders the reaction process.
Innovation Solution
A methane purification apparatus that controls the temperature of the gas within a specific range to prevent ozone decomposition and suppress water condensation, using a heating unit and temperature control system to optimize the reaction conditions for methane and ozone interaction on a catalyst.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the temperature is raised to prevent ozone decomposition, then ozone stability is improved, but water condensation on the catalyst increases, blocking reaction sites
Solution Approach 1:
The patent applies parameter changes by precisely controlling the temperature within a specific range (50°C to 100°C) to simultaneously achieve ozone stability and prevent water condensation on the catalyst. This optimized temperature parameter resolves the contradiction between ozone stability and water condensation prevention.
2Object-affected harmful factors
If the temperature is lowered to prevent water condensation on catalyst, then reaction site availability is improved, but ozone decomposition increases
Solution Approach 1:
The patent uses parameter changes by establishing a minimum temperature threshold (50°C to 100°C) that prevents water condensation on the catalyst while maintaining ozone stability. This temperature parameter optimization resolves the contradiction between preventing water condensation and preventing ozone decomposition.
3Productivity
If the temperature is raised to enhance methane reaction on catalyst, then methane oxidation efficiency is improved, but ozone decomposition increases
Solution Approach 1:
The patent applies parameter changes by controlling the temperature within an optimized range (50°C to 100°C) that provides sufficient thermal energy for methane oxidation on the catalyst while preventing ozone decomposition. This temperature optimization resolves the contradiction between methane oxidation efficiency and ozone stability.
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 apparatus effectively decomposes methane by ensuring sufficient ozone availability and preventing reaction site blockage, achieving efficient methane oxidation while minimizing ozone thermal decomposition and water adhesion.
Implementation Method 1
a heating unit that heats a second gas containing the first gas flowing through the flow path and ozone supplied by the ozone supply unit
Implementation Method 2
a catalyst that is provided downstream of the heating unit in the flow path and decomposes methane contained in the second gas
Implementation Method 3
Conventional pollutant treatment methods remove methane contained in a gas containing methane and ozone and having a temperature within a predetermined range by bringing the gas into contact with a catalyst and oxidizing the methane with ozone
Implementation Method 4
water condensed from water vapor contained in the gas adheres to the catalyst
Data Source
AI summary
A methane purification apparatus includes: a flow path through which a first gas containing methane flows; an ozone supply unit that supplies ozone to the first gas; a heating unit that heats a second gas containing the first gas flowing through the flow path and ozone supplied by the ozone supply unit; a catalyst that is provided downstream of the heating unit in the flow path and decomposes methane contained in the second gas; and a temperature control unit that causes the heating unit to heat the second gas so that the second gas falls within a range, which indicates temperatures at which ozone does not decompose in a predetermined time period and at which condensation of water vapor contained in the second gas is suppressed.