Induction Heated Zeolite Coating Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional zeolite coating methods face challenges in achieving thick, stable, and diffusion-friendly coatings due to metastable phase transformations and require lengthy processes, making them impractical and economically inefficient for large-scale production.
Innovation Solution
A zeolite coating preparation assembly using induction heating to remotely heat substrates, which shortens synthesis time, reduces material usage, and enables the production of thicker, more stable coatings with higher diffusion coefficients by maintaining the synthesis solution at a lower temperature than the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional single step synthesis method is used, then the process is simple, but the coating thickness is insufficient due to metastable phase transformation
Solution Approach 1:
The substrate is pre-heated by induction heating before introducing the reaction mixture, creating a temperature gradient that promotes continuous crystallization and prevents phase transformation. This preliminary thermal preparation enables the formation of thick coatings without extending the overall reaction time.
Solution Approach 2:
The invention changes the temperature parameter by maintaining a temperature gradient between the substrate (heated by induction) and the reaction mixture (cooled by water bath). This parameter change from isothermal to non-isothermal conditions prevents metastable phase transformation and enables thick coating formation.
2Manufacturing precision
If multi-step methods are used to prepare thick coatings, then the coating thickness increases, but the process becomes impractical and economically inefficient
Solution Approach 1:
The invention merges the heating function and cooling function into a single reaction system. The substrate serves as both the support and the heating element (via induction), while the water bath simultaneously cools the reaction mixture and delays phase transformation. This combination achieves thick coatings in a single step without increasing process complexity.
Solution Approach 2:
The substrate performs multiple functions: it serves as the support structure, the heating element (through induction coupling), and the nucleation surface for zeolite crystallization. This multi-functionality eliminates the need for separate heating devices and multiple synthesis steps.
3Temperature
If direct heating of substrate by conduction is used, then the reaction solution temperature can be controlled lower, but large heating resistances and complicated reactors are required
Solution Approach 1:
The invention replaces the mechanical/conductive heating system (heating resistances) with an electromagnetic heating system (induction heating). The substrate is heated by electromagnetic induction from an external coil, eliminating the need for large heating resistances and complex temperature control systems while maintaining precise temperature control of the reaction mixture.
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 method achieves thicker and more stable zeolite coatings with higher diffusion coefficients in shorter times, facilitating mass production and making the process more economical by eliminating the need for large heating resistances and complex reactors, suitable for applications like adsorption heat pumps.
Implementation Method 1
at least one induction device (5) which is located outside of the reactor (2) and is positioned near the reactor (2) such that the magnetic field that it generates by passing electric current over its coil (6) is located at a distance that will affect the substrate (4) within the reactor (2)
Implementation Method 2
the reaction solution is kept at a temperature that is lower than the reaction temperature by the help of a water bath. In this manner, phase transformation of the zeolite is delayed for long periods of time
Implementation Method 3
Zeolites are synthesized from a reaction mixture by means of hydrothermal crystallization. When this mixture is heated, at the end of certain periods of time, nuclei of the zeolite crystals are formed and then the crystals start to grow.
Implementation Method 4
When there is a substrate in the medium immersed in the reaction mixture, the nuclei/crystals often chemically bind with this substrate and form a zeolite coating which is strongly attached thereon.
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a zeolite coating preparation assembly (1) and operation method wherein zeolite adsorbents are coated by crystallization process on various surfaces heated by induction. The objective of the present invention is to provide a zeolite coating preparation assembly (1) and operation method; by which time saving is achieved owing to heating by induction, material saving is achieved since large heating resistances and complicated reactors are not used; and which is thus more economical; and wherein thicker and more stable coatings with high diffusion coefficients are prepared by using a more practical reaction system in a shorter period of time in comparison to the known methods, and wherein mass production is enabled.