Polymerization Flush Medium Switching to Reduce Inert Gas Loss
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Solution Overview
Problem
In polymerization processes, existing flushing methods using inert gases like nitrogen can lead to significant losses of valuable materials due to their similar molecular weight and the need for extensive purging, which is inefficient and costly.
Innovation Solution
The process involves using different flush mediums at different times, switching from an inert gas to a non-inert gas, such as the monomer being polymerized, to minimize fouling and reduce purge requirements, allowing for increased flush rates without excessive inert gas usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inert gas (nitrogen) is used as flush medium, then the polymerisation reaction is not affected, but significant losses of valuable materials occur due to purging requirements
Solution Approach 1:
The patent changes the chemical nature parameter of the flush medium from inert gas to reactive monomer gas, transforming it from a non-participating substance to one that actively engages in polymerisation reactions, thereby eliminating the need for purging and preventing material losses
Solution Approach 2:
The patent converts the previously harmful effect of flush medium accumulation (which required purging and caused material loss) into a beneficial effect where the monomer gas participates in polymerisation reactions, utilizing what would have been waste material for productive purposes
2Reliability
If high flush rates are used to prevent polymer build-up, then fouling is prevented, but excessive inert gas consumption occurs
Solution Approach 1:
The monomer gas performs a dual function: it serves as the flush medium to prevent polymer build-up in lines and connections, and simultaneously serves as reactant material for the polymerisation process, making the system self-sufficient and eliminating the need for separate inert gas supply
3Reliability
If inert gas is used for flushing connections, then polymer contact with seals is prevented, but the inert gas builds up to high levels requiring extensive purging
Solution Approach 1:
The patent changes the chemical reactivity parameter of the flush medium from zero (inert gas) to high (monomer gas), enabling the flush medium to participate in polymerisation reactions and preventing accumulation that would require purging
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 reduces the amount of inert gas needed for purging, minimizes losses of valuable components, and allows for higher flush rates during production, thereby optimizing the polymerization process efficiency and reducing material losses.
Implementation Method 1
a flush medium which enters the polymerisation system, wherein initially said component is flushed with a first flush medium
Data Source
AI summary
Polymerization process for the polymerization of monomer in a polymerization system having at least one component attached thereto which component is flushed with a flush medium which enters the polymerization system. Initially, the component is flushed with a first flush medium, and subsequently the component is flushed with a second flush medium.