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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…

The Secret of Carbon Molecular Sieve in PSA Nitrogen Generator The usage and selection of activated carbon molecular sieve in PSA nitrogen generators We all know that activated carbon molecular sieve is the core components of PSA nitrogen generators. Today, we will explain how to select the activated carbon molecular sieve for PSA nitrogen generators and determine the usage. There are many types of the molecular sieve, and each type has different characteristics and adsorption capacities. Generally speaking, activated carbon molecular sieve is selected as adsorbents for PSA nitrogen generators. The activated carbon molecular sieve is black cylindrical solids with…

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…

Application of 4A Molecular Sieve Adsorbent in Gas-Liquid Drying Structure and performance parameters of 4A molecular sieve: 4A molecular sieve is an artificially synthesized zeolite, a crystal of silicate and aluminate, which is white in powder form. After adding a binder, it can be extruded into strips, flakes or balls. 4A molecular sieve is non-toxic, odorless, and non-corrosive. It is insoluble in water and organic solvents but soluble in strong acid and strong alkali. When heated, 4A molecular sieve loses its crystalline water, forming many small holes inside the crystal. The pore size is similar to the diameter of gas…

Advantages of PSA Molecular Sieve Pressure Swing Adsorption for Oxygen Production In industry, there are three main methods for oxygen production, namely cryogenic distillation, adsorption and electrolysis, and they all use different gas separation principles; cryogenic distillation is to first liquefy air at low temperature, and then separate oxygen and nitrogen by utilizing their different boiling points. Electrolysis is the process of putting direct current into water to separate oxygen and hydrogen. The Technical Characteristics of PSA Molecular Sieve The pressure swing adsorption method was launched in the late 1950s. It uses zeolite molecular sieves as adsorbents to adsorb and…

Characteristics of Molecular Sieve Used in PSA Oxygen Production Systems The molecular sieve powder used in the PSA oxygen production system is an artificially synthesized crystalline aluminosilicate. Understanding of PSA molecular sieve PSA molecular sieve is used in the oxygen generation process of air separation and oxygen/nitrogen separation. Compared with ordinary calcium-type and sodium-type oxygen production molecular sieves, pressure swing adsorption is suitable for various VPSA devices and has better processing capacity and separation efficiency. In fact, there are not only one type of molecular sieve, and there are many types. At present, the main types commonly used are three…

What Conditions Need to Be Controlled for the Production of Nitrogen Using Carbon Molecular Sieves? Carbon molecular sieve air compression purification process Purifying the raw air before entering the carbon molecular sieve adsorption tower is necessary because particles and organic atmosphere entering the adsorption tower can block the micropores of the carbon molecular sieve and gradually reduce its separation performance. There are methods to purify the raw air: 1) keeping the intake of the air compressor away from places with dust, oil mist, and organic atmosphere; 2) purifying the raw air with equipment such as a refrigerated dryer and adsorbent…