Hydrohalofluoroolefin Isomerization Catalyst Moisture Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for isomerizing hydrohalofluoroolefins face challenges in maintaining catalyst performance due to moisture levels, leading to inefficiencies in converting E/Z isomers.
Innovation Solution
The method involves adjusting the moisture concentration of hydrohalofluoroolefin isomers to 100 ppm or lower before contacting them with a catalyst in a gas phase, using metal oxide or fluorinated metal compounds, and optimizing temperature and contact time to suppress catalyst deactivation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydrohalofluoroolefin isomerization is conducted using conventional catalysts without moisture control, then the isomerization reaction can proceed, but catalyst performance deteriorates due to moisture-induced deactivation
Solution Approach 1:
The patent applies preliminary action by controlling moisture content in the hydrohalofluoroolefin feedstock to 100 ppm or lower before the isomerization reaction begins. This preventive measure ensures catalyst performance is maintained from the start of the reaction, avoiding moisture-induced deactivation that would otherwise occur during conventional isomerization processes
Solution Approach 2:
The patent changes the moisture concentration parameter of the feedstock to a specific range (100 ppm or lower). This parameter modification fundamentally alters the reaction conditions to prevent catalyst deactivation, transforming a harmful moisture environment into a controlled, catalyst-friendly environment that maintains reliable catalytic activity throughout the isomerization process
2Reliability
If moisture concentration is reduced to maintain catalyst performance, then catalyst deactivation is suppressed, but additional moisture control steps are required in the process
Solution Approach 1:
The patent modifies the moisture concentration parameter of the feedstock to 100 ppm or lower, creating optimized reaction conditions that maintain catalyst performance. This parameter change enables the use of simpler catalyst systems and reduces the need for complex moisture removal equipment downstream, as the controlled moisture level prevents catalyst deactivation in the first place
3Productivity
If conventional isomerization methods are used without moisture control, then the process is simpler to operate, but isomerization efficiency decreases due to catalyst deactivation
Solution Approach 1:
The patent implements preliminary moisture control to maintain feedstock moisture at 100 ppm or lower before isomerization begins. This preliminary action prevents catalyst deactivation, ensuring high isomerization efficiency throughout the reaction process while avoiding the need for complex operational adjustments during reactor operation
Solution Approach 2:
By changing the moisture concentration parameter to 100 ppm or lower, the patent creates optimized reaction conditions that maintain high catalyst activity and isomerization efficiency. This parameter modification transforms the process into one that is both efficient and operationally straightforward, as the controlled moisture level prevents catalyst deactivation without requiring complex real-time adjustments
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 effectively maintains catalyst performance, enhancing the efficiency of isomerization by reducing moisture-related deactivation and improving the yield of target hydrohalofluoroolefin isomers.
Implementation Method 1
contacting a composition that contains at least a hydrohalofluoroolefin isomer (isomer 1) and that has been adjusted to 100 ppm or lower in moisture concentration, with a catalyst in a gas phase, thereby obtaining a product
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
[TASK] It is a task to provide a method for efficiently isomerizing a hydrohalofluoroolefin isomer (isomer 1) by suppressing lowering of catalyst performance to produce the corresponding hydrohalofluoroolefin isomer (isomer 2). [SOLVING MEANS] A method for isomerizing a hydrohalofluoroolefin isomer (isomer 1) to produce a corresponding hydrohalofluoroolefin isomer (isomer 2), comprising step 1 of contacting a composition that contains at least a hydrohalofluoroolefin isomer (isomer 1) and that has been adjusted to 100 ppm or lower in moisture concentration, with a catalyst in a gas phase, thereby obtaining a product.