Ionic Liquid Catalyst Activity via Metal Bronsted Acid Treatment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing acidic ionic liquid catalysts have limited activity, leading to increased costs due to the need for frequent replacement or regeneration and suboptimal reaction conditions, such as high temperatures and reduced product yield.
Innovation Solution
A process involving the combination of freshly-made acidic ionic liquid catalysts with a metal and a Bronsted acid, such as aluminum and HCl, in a reaction zone to enhance catalytic activity by increasing the concentration of Lewis acidic components like AlCl3, thereby improving the catalyst's acidity and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing acidic ionic liquid catalysts are used, then the catalytic process can be maintained, but the catalyst activity is limited requiring frequent replacement or regeneration
Solution Approach 1:
The patent changes the chemical composition parameters of the ionic liquid catalyst by incorporating specific anions (Al2Cl7-, Al2Br7-, Ga2Cl7-, In2Cl7-, FeCl4-, SnCl6 2-) and adjusting the cation-anion ratio to optimize catalytic activity and extend operational life
Solution Approach 2:
The patent creates composite ionic liquid catalysts by combining specific cations (ammonium, phosphonium, sulfonium, imidazolium, pyridinium) with Lewis acid anions to form a composite material that exhibits enhanced catalytic activity and stability compared to single-component ionic liquids
2Productivity
If existing acidic ionic liquid catalysts are used, then the catalytic process can proceed, but high temperatures and reduced product yield occur
Solution Approach 1:
The patent changes the acidity parameters of the catalyst system by selecting specific Lewis acid anions and adjusting their concentrations, which lowers the activation energy and enables reactions to proceed at lower temperatures with higher yields
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 treated catalyst demonstrates increased activity and longer operational life, allowing for lower reaction temperatures and higher product yields while maintaining selectivity, thus reducing costs and improving process efficiency.
Implementation Method 1
combining freshly-made acidic ionic liquid catalyst, a metal and a Bronsted acid in a reaction zone for a time sufficient to increase the activity of the ionic liquid catalyst
Data Source
AI summary
A process for producing acidic ionic liquid catalyst having enhanced activity comprising combining fresh acidic ionic liquid catalyst, a metal and a Broensted acid in a reaction zone for a time sufficient to increase the activity of the ionic liquid catalyst is disclosed.A process for producing acidic ionic liquid catalyst having enhanced activity comprising the steps of combining fresh ionic liquid catalyst, a metal and HCl in a reaction zone for a time sufficient to increase the activity of the fresh ionic liquid catalyst; removing reaction product from the reaction zone and recovering at least a portion of the treated ionic liquid catalyst is also disclosed.