Molecular Sieve Adsorption Knowledge

04/09/2020
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Molecular sieve (also known as synthetic zeolite) is a kind of microporous aluminosilicate crystals. The types of molecular sieves are mainly divided into type A, type X, type Y, etc. according to their crystal structure.

Adsorption is a physical phenomenon in which gaseous and liquid substances (adsorbents) are fixed on a solid surface (adsorbent). This solid (adsorbent) has a large number of microporous active surfaces, and the molecules of the adsorbate are attracted by the surface of the adsorbent. The magnitude of gravity depends on three points.

  ①The structure of the zeolite adsorbent surface (microporosity)

  ②The partial pressure of adsorbent

  ③temperature

Adsorption is accompanied by exotherm, which is a reversible phenomenon. Similar to condensation:

  Increase the pressure, the adsorption capacity increase.

  Decrease the temperature, the adsorption capacity increase.

Therefore, during adsorption, the pressure should be raised to the highest and the temperature should be lowered to the lowest. When desorption, the pressure should be reduced to the lowest and the temperature should be raised to the highest.

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In Needs of Molecular Sieve Solution?

JALON JLOED MOLECULAR SIEVES USED FOR ELECTROLYTE DEHYDRATION

This letter is to inform you that we evaluated Molecular Sieve JLOED 3.0-5.0 MM product from Luoyang Jalon Micro-nano New Materials Co., Ltd to dry our organic solvents for production of electrolyte for Li ion battery. The resulting organic solvents that went through our process with the Molecular Sieve JLOED 3.0-5.0 MM product in our R/D and production facility located in Chico, CA, US passed our specifications showing extremely low content of moisture, below 10ppm. This Molecular Sieve product met our quality requirement, and it is highly recommended for use in the industry of Li ion battery for drying of organic solvents. We also appreciate the technical support from the company.

Nanotech Energy

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Cryogenic air separation unit Project
Yuntianhua United Commerce Co., Ltd. 52000 Nm3/Cryogenic air separation unit Project

Luoyang Jalon Micro-nano New Materials Co., Ltd. JLPM series molecular sieves are mainly used for cryogenic drying of general industrial gases. The purification system in the air separation unit removes H2O and CO2, as well as natural gas and other hydrocarbon desulfurization (removal of H2S and mercaptans) and CO2.

 

It is worth mentioning that Yuntianhua United Commerce Co., Ltd. Company 52000 Nm3/Cryogenic air separation unit project. The design and manufacture method of the air separation unit by air, adsorber adopt vertical radial flow design, processing capacity of 311352 nm3 / h, 5.13 Bar (A) adsorption pressure, loading type my company JLPM3 efficient molecular sieve 92 tons, 107 tons of activated alumina, can ensure that the CO2 content in the air mean 1000 parts per million (2000 PPM) instantaneous equipment and stable operation, export CO2 molecular sieve < 0.1 PPM.

The fifth-generation high-performance molecular sieve JLPM1 is an advanced molecular sieve used in the pre-purification unit (APPU) of air separation equipment. Compared with previous generations, the fifth-generation high-performance molecular sieve JLPM1 has significantly improved CO2 adsorption capacity; the fifth-generation high-performance molecular sieve JLPM1 will bring multiple benefits to air separation designers and operators. For the design of the new air separation plant, the application of the fifth-generation high-performance molecular sieve JLPM1 can make the air separation occupy a smaller area, thereby reducing equipment investment and operating costs. The fifth-generation high-performance molecular sieve JLPM1 can also be used for the transformation of old equipment, which can reduce energy consumption or improveair separation processing capacity.

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Zhuhai Yueyufeng Iron and Steel Co., Ltd. 30000Nm3/h pressure swing adsorption (VPSA) oxygen production project

Oxygen molecular sieve is an important material to ensure the work of VPSA oxygen production equipment. This project is another successful case of our JLOX-103 lithium-type high-efficiency oxygen molecular sieve.

 

The 30000Nm3/h pressure swing adsorption (VPSA) oxygen production project of Zhuhai Yueyufeng Iron and Steel Co., Ltd., designed and built by CSSC Huanggang Precious Metals Co., Ltd., was successfully started up on June 27, 2019. As of May 29, 2020, the device has been operating stably for 11 months, and all indicators are better than the design indicators. It has been highly recognized and praised by customers, and has created a cumulative effect of 150 million yuan per year for the enterprise. At the same time, the project has realized intelligent oxygen production, mobile control and remote monitoring to guide production, helping to realize the green and intelligent promotion of the industry.

 

The project uses 4 sets of pressure swing adsorption (VPSA) oxygen generators in parallel. The single set of device is designed to produce 7500Nm3/h of oxygen and 80% oxygen purity. It is filled with our company (Luoyang Jalon Micro Nano New Materials Co., Ltd.) JLOX-103 lithium-type high-efficiency oxygen molecular sieve is 68 tons, the actual oxygen output reaches 7650Nm3/h, and the oxygen concentration is above 82.3%. The 4 sets of equipment in this project are filled with 272 tons of our JLOX-103 oxygen molecular sieve, with a total oxygen production of more than 30000Nm3/h.

 

Oxygen molecular sieve is an important material to ensure the operation of VPSA oxygen production equipment. This project is another successful case of our company’s JLOX-103 lithium-type high-efficiency oxygen molecular sieve.

Luoyang Jalon Micro-nano New Materials Co., Ltd. JLOX-100 series high-efficiency oxygen generation molecular sieve is a lithium X-type aluminosilicate crystal, which is an oxygen generation molecular sieve with international advanced level. Widely used in: iron and steel, non-ferrous metallurgy, chemical industry, furnace energy-saving transformation, environmental protection, papermaking, aquaculture, medical care and other industries.

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