Mixed Gas Hydrate Formation via Solubility and Pressure Synergy
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Solution Overview
Problem
Conventional methods for preparing gas hydrates at relatively low pressure are economically and productively inefficient due to the need for additional promoters and devices, which increase costs and do not maintain satisfactory formation rates, especially at low temperatures.
Innovation Solution
A method involving the simultaneous injection of a first guest gas with high water solubility and a second guest gas that forms hydrates at lower pressure into a reactor, reacting them with water to enhance gas hydrate formation rates at reduced pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional single-gas methods are used to prepare gas hydrates at low pressure, then additional promoters and devices are required, but this increases cost and does not maintain satisfactory formation rates
Solution Approach 1:
The invention changes the chemical composition parameter by using a mixed-gas system (CO2 and H2) instead of a single gas, which fundamentally alters the phase equilibrium conditions and enables high-rate hydrate formation at low temperatures without requiring external promoters or complex heating devices
2Productivity
If additional promoters or heating devices are added to increase gas hydrate formation rate, then the formation rate improves, but the cost increases
Solution Approach 1:
The mixed-gas system serves itself by leveraging the high water solubility of CO2 and the low-pressure reactivity of H2 to naturally drive rapid hydrate formation without requiring external promoters, heating devices, or complex control systems
Solution Approach 2:
The invention uses a composite gas mixture (CO2 and H2) that combines the advantageous properties of each component gas to achieve synergistic effects in hydrate formation, eliminating the need for separate promoters or complex equipment
3Productivity
If conventional methods are used, then equipment complexity increases, but productivity remains insufficient
Solution Approach 1:
The invention extracts and eliminates the need for complex auxiliary equipment (stirrers, cooling jackets, promoter injection systems) by using a specially designed mixed-gas composition that inherently drives rapid hydrate formation through its unique phase equilibrium characteristics
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
This approach allows for the rapid preparation of gas hydrates at lower pressures with improved yield and productivity, compared to conventional single-gas methods, by leveraging the high solubility of the first gas and reactivity of the second gas at low pressures.
Implementation Method 1
a first guest gas which has a high water solubility
Implementation Method 2
A clathrate hydrate refers to a crystalline compound wherein guest molecules are physically trapped inside a three-dimensional lattice structure formed by hydrogen-bonded host molecules without a chemical bonding
Data Source
AI summary
The present invention provides a method for preparing gas hydrates by reacting a plurality of guest gases with water, wherein a first guest gas has a higher water solubility than that of a second guest gas, and the pressure of the gas hydrate formation condition of the second guest gas is lower than the pressure of the gas hydrate formation condition of the first guest gas.While the traditional gas hydrate production method, wherein a single guest gas is reacted with water, is unsatisfactory in terms of cost effectiveness and productivity, the present invention provides improved production yield of gas hydrates and enables an easy production of gas hydrates at lower pressure.