Zeolitic Adsorbent Purification of Aromatic Liquids
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Solution Overview
Problem
Aromatic liquid compounds degrade under thermal stresses, leading to the formation of toxic and hazardous byproducts that reduce their useful life and pose safety risks, with existing separation methods being time- and energy-consuming, making them unsuitable for industrial applications.
Innovation Solution
The process involves contacting aromatic liquid compounds with a zeolitic adsorbent material to selectively adsorb and remove degradation products, thereby extending the lifetime of the compounds and preventing environmental toxicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional separation methods (settling, crystallization, recrystallization) are used to remove degradation products, then purification is achieved, but the process becomes highly time- and energy-consuming
Solution Approach 1:
The patent employs zeolite crystals with porous structures as adsorbents to remove degradation products. The porous nature of zeolites provides high surface area and selective adsorption capacity, enabling efficient purification without the extensive time required by conventional methods like crystallization and recrystallization.
Solution Approach 2:
The invention changes the approach from thermal/phase-based separation (crystallization, distillation) to adsorption-based separation. By utilizing the adsorption properties of zeolites, the process achieves purification under milder and faster conditions, reducing both time and energy consumption while maintaining effectiveness.
2Reliability
If conventional separation methods are used to remove degradation products, then purification is achieved, but energy consumption becomes excessively high
Solution Approach 1:
Zeolite crystals utilize their porous structure to provide high surface area for adsorption, enabling effective removal of degradation products at lower energy costs compared to thermal separation methods like distillation or crystallization that require significant heating energy.
Solution Approach 2:
The patent replaces energy-intensive mechanical/thermal separation systems (heating for distillation, cooling for crystallization) with an adsorption system that operates at lower energy levels, utilizing the natural adsorption affinity of zeolites for degradation products.
3Object-affected harmful factors
If spent aromatic liquid compound is replaced to remove impurities, then safety is improved, but loss of time and yield increases
Solution Approach 1:
The invention extracts and removes degradation products from the spent aromatic liquid compound through adsorption on zeolite crystals, allowing the bulk aromatic liquid to be recovered and reused. This eliminates the need to discard and replace the entire spent compound, thereby preventing yield loss while maintaining safety.
Solution Approach 2:
Instead of discarding the spent aromatic liquid compound containing impurities, the process recovers it by removing the degradation products through adsorption. This recovery enables the aromatic liquid to be reused in the same application, maintaining both safety and productivity.
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 significantly reduces the amount of degradation products, improving the longevity of aromatic liquid compounds and ensuring safer industrial use by effectively trapping and removing harmful byproducts, thus enhancing operational efficiency and reducing environmental impact.
Implementation Method 1
the trapping being performed by selective adsorption of said degradation products
Implementation Method 2
said process comprising at least a step in which said aromatic liquid compound is contacted with a zeolitic adsorbent material
Data Source
AI summary
The present invention concerns a process for purifying an aromatic liquid compound, said process comprising at least a step in which said aromatic liquid compound is contacted with a zeolitic adsorbent material.The present invention also concerns the use of a zeolitic adsorbent material for purifying an aromatic liquid compound.