High Stability 1.7mm Molecular Sieve Desiccant

High Stability 1.7mm Molecular Sieve Desiccant

Product introduction

Molecular sieve is a kind of aluminosilicate, which is mainly composed of silicon and aluminum connected by oxygen bridges to form an empty framework structure. There are many pores with uniform pore size and cavities with neat arrangement and large internal surface area in the structure. In addition, it also contains metal ions with lower electricity prices and larger ion radius and water in a combined state. Because water molecules are continuously lost after heating, but the structure of the crystal skeleton remains unchanged, many cavities of the same size are formed, and the cavities are connected by many micropores with the same diameter. Substance molecules smaller than the pore diameter are adsorbed inside the cavity. , And exclude the molecules larger than the pores, so that the molecules of different sizes and shapes are separated and play the role of sieving molecules, so it is called molecular sieve. When gas or liquid mixture molecules pass through this substance, they can be separated from each other according to different molecular characteristics. The synthetic molecular sieve is white powder, insoluble in water and organic solvents, and generally soluble in strong acids. In order to meet the needs of industrial applications, a certain amount of binder is added to the original molecular sieve powder and molded into a suitable shape, usually spherical and Bar. Molecular sieve has a small external surface area (about 1% of the total surface area), high thermal stability, and has a high internal surface area (600～1000m2/g) after dehydration, an open skeleton structure, and the pore volume accounts for 28 %～35%, can hold a considerable amount of adsorbate molecules. The inner crystal surface is highly polarized, the electrostatic field in the crystal cavity is strong, and the micropores are uniformly distributed. It is a highly efficient and highly selective adsorbent, catalyst and catalyst carrier. It is mainly used for deep drying of various gases and liquids, separation and purification of gases and liquids, catalyst carriers, etc., so it is widely used in oil refining, petrochemical industry, chemical industry, metallurgy, electronics, national defense industry, etc., at the same time in medicine, light Industry, agriculture, environmental protection and many other aspects are also increasingly widely used.

Scope of application

3A molecular sieve: It is mainly used for drying petroleum cracking gas, olefin, gas refinery, oil field gas, and is a desiccant for chemical industry, medicine, insulating glass and other industries.

Molecular Sieve Advantages

(1) select adsorption according to the size and shape of molecules, that is, only adsorption of molecules smaller than the pore size of the molecular sieve;

(2) for small polar molecules and unsaturated molecules, they have selective adsorption performance. The greater the polarity, the higher the degree of unsaturation, the stronger the selective adsorption performance.

(3) it has strong water absorption.Even in the case of higher temperature, higher airspeed and lower water content, there is still quite high water absorption capacity.

3A molecular sieve technical Index:

Product Pictures

Product Performance

Molecular sieve has strong moisture absorption capacity and is used for gas purification treatment. Avoid direct exposure to the air during storage. Molecular sieves that have been stored for a long time and have absorbed moisture should be regenerated before use. Molecular sieve avoids oil and liquid water. Try to avoid contact with oil and liquid water when in use. The gases to be dried in industrial production include air, hydrogen, oxygen, nitrogen, argon, etc. Two adsorption dryers are used in parallel, one works, and the other can be regenerated. Alternate work and regeneration to ensure continuous operation of the equipment. The dryer works at 8-12°C, and regenerates when heated to 350°C. Different specifications of molecular sieve have slightly different regeneration temperatures. Molecular sieves have a good catalytic effect on certain organic gas phase reactions.

Company information

Shanghai Xuefeng Molecular Sieve Co., Ltd. is a professional manufacturer of molecular sieve products, which belongs to Zhengzhou Xueshan Industrial Co., Ltd. Located in Shanghai Xinzhuang Industrial Zone, covering an area of 24 acer, it has nearly 7000 square meters of most standardized workshop, production equipment and testing instruments. At present, there are a series of stereotyped products such as type A (3a, 4a, 5a), X and so on, as many as 25 varieties have been put on the market.

The products are widely used in natural gas, oil refining, petrochemical, steel, light industry, air separation oxygen production and alcohol dehydration and other industrial fields, and have many successful examples in the deep drying, purification and separation of large and medium-sized industrial equipment at home and abroad. Xuefeng not only has many users in China, but also exports its products to developed countries such as Europe and the United States.

Shanghai Xuefeng has a certain scale of production, with three assembly lines with an annual output of more than 3000 tons of molecular sieves, and has passed the ISO9001-2000 standard Lloyd's quality management system certification, and Xueshanguan is a registered trademark of the product. In order to meet the needs of users, another automatic assembly line with an annual output of 6000 tons was installed in 2008.

Shanghai Xuefeng has introduced and digested the production technology of similar foreign products. The raw powder produced by our own Xueshan Industrial Company is added with clay strengthening agent. After kneading, roasting and activation, the appearance is beige or light gray. We can also produce strip and ball products of different specifications according to customer requirements. In accordance with the domestic (industry) standards of molecular sieves and referring to the main technical indicators of similar foreign products, Shanghai Xuefeng Molecular Sieve has formulated the technical standards for molecular sieve enterprises (QB/SF2690-99).The main testing items and indicators are shown in the sample. At the same time, eight types of molecular sieve products have been tested by Shanghai Research Institute of Chemical Industry ( the domestic molecular sieve national standard and industry standard drafting unit ) and other authoritative organizations, and all quality indicators have reached or exceeded relevant domestic and foreign technical standards.