Adsorption device
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Adsorption device
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Principle Overview
Adsorption equipment refers to the use of solid adsorption capacity for gases or liquids to separate impurities from gas or liquid products. Adsorption is the diffusion process at the interface between a gas or liquid and a solid substance. Solid substances with high adsorption capacity in adsorption phenomena are called adsorbents, and the adsorbed substances are called adsorbates. The larger the surface area of the adsorbent, the more it can adsorb per unit mass of adsorbent. Therefore, the substances used as adsorbents are loose porous structures with a huge surface area.
According to the type of adsorption, it can be divided into physical adsorption, chemical adsorption, and exchange adsorption. Adsorption devices are generally divided into fixed beds, fluidized beds, and moving beds. The corresponding equipment is selected according to the process requirements. Nowadays, fixed beds are mostly used in production processes. In recent years, due to the rapid development of the semiconductor and new energy markets, adsorption equipment is crucial in material production. For example, in the production and purification process of electronic specialty gases and precursor materials, distillation cannot achieve separation effect due to material characteristics. Therefore, adsorption devices are added to the entire purification unit to remove impurities in the product. Adsorption devices can process and purify gases or liquids. In the production of new energy materials, the removal of acid in the product is also processed through adsorption devices. Acid removal resins are added to the adsorption device to remove trace amounts of acid in the product, achieving the final quality requirements of the product.
The commonly used adsorbents in industry include silica gel, activated alumina, activated carbon, molecular sieves, etc. In addition, there are adsorption materials developed for selective adsorption of certain components.
The most critical part of the entire adsorption device is the selection of adsorbents and the specification design of adsorption equipment, which play a crucial role in the purification of products. Therefore, our company has established industry university research cooperation with Nanjing University and Changzhou University to explore new adsorption materials and formulas for the purification of high-purity electronic materials, and provide complete theoretical data support and performance testing in applications.
Specific technical requirements can be selected and designed according to customer needs, and materials are generally divided into high borosilicate glass PTFE、 304 stainless steel, 316L stainless steel, titanium alloy, steel spray fluorine, Hastelloy, etc.
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