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How To Activate Molecular Sieve? Why Do You Need to Activate a Molecular Sieve? In the process of storage and transportation, a molecular sieve will absorb a small amount of water and carbon dioxide. Activation can ensure molecular sieve maximum adsorption capacity. For a molecular sieve, activation means emptying the adsorbent to expose the surface, which can affect the adsorb of the reaction materials and shorten the reaction induction period. What is a Molecular Sieve? Molecular sieves adsorb different substances by their adsorption priority and aperture. It is an aluminosilicate microporous crystal. Molecular sieves have four major uses and various…

Activated Alumina Ball Plays an Important Role As a Desiccant Dehydration is a widespread need in industry, and the presence of moisture often negatively affects the production process. Therefore, for most production environments under non-vacuum conditions, drying the air is the first step to ensure smooth production. In current industrial production, compressed air is an important source of power. As it is widely used, drying equipment for removing water vapor in compressed air has also been developed and applied accordingly. Among them, the heatless regeneration adsorption compressed air dryer has the advantages of simple structure, low power consumption, low investment,…

Factors Affecting the Adsorption Performance of Activated Alumina Activated alumina is generally prepared by heating and dehydrating aluminum hydroxide. Aluminum hydroxide is also called hydrated alumina. Its chemical composition is Al2O3·nH2O. Usually, it can be divided into alumina trihydrate and alumina monohydrate according to the number of crystal water contained. After heating and dehydration of aluminum hydroxide, γ-Al2O3 can be obtained. That is commonly referred to as activated alumina. 1. Use of activated alumina Activated alumina belongs to the category of chemical alumina, and activated alumina is used for adsorbents, water purifiers, catalysts and catalyst carriers. Activated alumina has selective…

4A Molecular Sieve Can Be Adsorbed According to the Size of the Molecule As we all know, the structural characteristics of 4A molecular sieve determine its good adsorption performance, catalytic performance and ion exchange performance. Where are these three performances mainly manifested? 1. Performance characteristics of 4A molecular sieve Adsorption performance: The pore size of 4A molecular sieve is average, and when the dynamic diameter of the molecule is smaller than the pore size of the molecular sieve, it can enter the inside of the channel for adsorption. 4A molecular sieve is like a sieve that separates gas and liquid.…

What Are the Guidelines for Using 5A Molecular Sieve to Remove Water? The pore size of 5A molecular sieve is 5A, which is generally called calcium molecular sieve. It can adsorb any molecule smaller than this pore size, and is mainly used in the separation of normal isomeric hydrocarbons, pressure swing adsorption separation, and co-adsorption of water and carbon dioxide. Based on the industrial application characteristics of 5A molecular sieve, the 5A molecular sieve desiccant produced by high-quality manufacturers has high selective adsorption, fast adsorption speed, especially suitable for pressure swing adsorption, and can adapt to various sizes of gas…

3A Molecular Sieve Can Adsorb Molecules Whose Critical Diameter is Not Larger Than Itself Molecular sieve is a porous crystalline aluminosilicate material, which is widely used in the drying and purification of various refrigerants due to its unique selective adsorption and drying properties. 1. Application field of 3A molecular sieve 3A molecular sieves are used for drying of various liquids (such as ethanol); drying of air; drying of refrigerants; drying of natural gas and methane; drying of unsaturated hydrocarbons and pyrolysis gas, ethylene, acetylene, propylene, butadiene. 3A molecular sieve is mainly used in architectural glass industry, gas refining and purification…

Broken Analysis and Solutions of Ceramic Grinding Balls Ceramic grinding balls are used as grinding media in pulverizing equipment and are often used in industrial production. However, in the production process, ceramic grinding balls are often broken. So what is the reason for the broken ceramic grinding balls? Is there any solution? Let’s take a look together. Ⅰ. Analysis of the reasons for the crushing of ceramic grinding balls The popular ceramic grinding balls on the market include glass balls, zirconium silicate balls and pure zirconium balls. In terms of production technology, they are basically divided into two types: electrofusion…

Regeneration Principle of Molecular Sieve in PSA Air Separation Plant For the PSA molecular sieve air separation plant, the molecular sieve is undoubtedly the core component of the system; only the clean compressed air is continuously adsorbed and regenerated through the molecular sieve, in order to continuously produce the nitrogen or oxygen we need. Regeneration can be understood as the reverse process of adsorption; because after the molecular sieve completes a saturated adsorption, it cannot continue to adsorb gas, and it needs to “recover” its adsorption capacity, which is what we call “regeneration”. Molecular sieve regeneration can help the molecular…

Why Only Molecular Sieve 3A is Qualified to Be Used in Hollow Glass? Molecular sieve can simultaneously adsorb water and residual organic matter in the hollow glass, so that the hollow glass remains clean and transparent even at very low temperatures. At the same time, it can fully reduce the strong internal and external pressure difference of hollow glass caused by the huge temperature difference between seasons and day and night. The molecular sieve in the hollow glass also solves the problem of distortion and breakage caused by expansion or contraction, thus prolonging the service life of the hollow glass.…

What Are the Routine Preparations Required When Using Activated Alumina? Activated alumina is mainly used as an adsorbent in industrial applications such as gas drying, liquid drying, water purification, selective adsorption, and decomposition processes in the petroleum industry. Due to its strong affinity for water, activated alumina has been widely used in gas drying. The main gases that can be dried using activated alumina are acetylene, cracking gas, coke oven gas, hydrogen, oxygen, air, ethane, hydrogen chloride, propane, ammonia, ethylene, hydrogen sulfide, propylene, argon, methane, sulfur dioxide, carbon dioxide, helium, nitrogen, and chlorine. As activated alumina releases a large amount…

What is the Selectivity and Adsorption Efficiency of the Molecular Sieve Type 4A? molecular sieve type 4A is composed of silicon (aluminum) octahedra, and the central polyhedron serves as the framework structure. The intermediate space of the framework is extremely empty, forming many well-arranged pores or channels. There are metal ions in the molecular sieve, and the framework space is filled with water molecules. Cations can be exchanged, and water molecules can be removed. Under certain conditions, the framework structure can also change. The characteristics of this structure are the inherent reasons for the various properties of molecular sieves. Properties…

What Are the Differences Between Activated Alumina and Molecular Sieve? Activated alumina and molecular sieves are commonly used adsorbents in industrial production, playing irreplaceable roles. However, one question has always puzzled us: what is the difference between activated alumina and molecular sieves? What are their different functions? Today, we will analyze their specific differences from the aspects of structure, adsorption performance, and application. Differences in the structure of activated alumina and molecular sieves Activated alumina and molecular sieves are both solid materials with high porosity and high dispersion, and have a large specific surface area. However, the difference between activated…