Ionic Liquid Gas Hydrate Inhibitor
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Solution Overview
Problem
Conventional gas hydrate inhibitors are insufficient in controlling and inhibiting the formation of gas hydrates in oil and natural gas industries, often requiring excessive amounts or failing to effectively delay formation.
Innovation Solution
A gas hydrate inhibitor comprising an ionic liquid compound represented by Chemical Formula 1, which can shift equilibrium conditions to inhibit gas hydrate formation by allowing it to form at lower temperatures and higher pressures, or delay induction time at existing conditions, effectively preventing gas hydrate formation in pipelines and equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional gas hydrate inhibitors are used, then gas hydrate formation is inhibited to some extent, but excessive amounts are required and insufficient retarding effect is achieved
Solution Approach 1:
The patent changes the chemical parameters of the inhibitor by introducing ionic liquid compounds with specific structures (Formula 1) that have different chemical properties compared to conventional inhibitors. This structural parameter change enables more effective gas hydrate formation inhibition at lower concentrations, resolving the contradiction between inhibition effectiveness and inhibitor quantity required.
2Reliability
If conventional inhibitors are used, then some gas hydrate formation is prevented, but insufficient retarding for gas hydrate formation is achieved
Solution Approach 1:
The patent modifies the chemical parameters of the inhibitor system by employing ionic liquid compounds with specific cation and anion combinations. This parameter change results in enhanced retarding effect on gas hydrate formation, extending the induction time and providing more effective control over the formation process.
3Reliability
If more inhibitor is added to improve inhibition effectiveness, then gas hydrate formation is better controlled, but cost and production loss increase
Solution Approach 1:
The patent changes the efficiency parameter of the inhibitor by using ionic liquid compounds that provide superior inhibition performance. This parameter change allows achieving the same or better inhibition effectiveness with reduced inhibitor quantities, thereby minimizing production loss and cost while maintaining reliable gas hydrate formation control.
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 ionic liquid compound effectively decreases the equilibrium temperature of gas hydrates by 1.3-1.7K and delays induction time by up to 6 hours, inhibiting gas hydrate formation in oil and natural gas operations, thereby preventing blockages and reducing production losses.
Implementation Method 1
the compound of the present invention changes equilibrium conditions of the gas hydrate to allow the gas hydrate to be formed at a lower temperature and/or higher pressure
Implementation Method 2
delays an induction time of a gas hydrate formation under the same temperature and pressure
Data Source
AI summary
The present invention relates to an ionic liquid compound that inhibits a formation of a gas hydrate. The compound of the present invention changes an equilibrium temperature and pressure of a gas hydrate in small quantity into a lower temperature and/or a higher pressure, and simultaneously retards the formation of the gas hydrate under the same environment. Thus, the compound of the present invention is used in oil and natural gas industries to effectively inhibit or delay the formation of the gas hydrate under the condition having a low temperature and a high pressure.