Natural Gas Drying Cas 1318 02 1 Molecular Sieve Desiccant

Natural Gas Drying Cas 1318 02 1 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.

molecular sieve technical Index:

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.

4A molecular sieve: Mainly used for the drying of natural gas and various chemical gases and liquids, refrigerants, medicines, electronic materials and variable substances, argon purification, methane, ethane and propane separation.

5A molecular sieve: Main uses:

1. Natural gas drying, desulfurization, and carbon dioxide removal;

2. Separation of nitrogen and oxygen, separation of nitrogen and hydrogen to produce oxygen, nitrogen and hydrogen;

3. Petroleum dewaxing, separation of normal hydrocarbons from branched hydrocarbons and cyclic hydrocarbons.

13XAPG molecular sieve: Mainly used for the purification of feed gas from large and medium-sized air separation plants.

Common model

Molecular sieve models commonly used in the gas industry;

Type A: Potassium A (3A), Sodium A (4A), Calcium A (5A), Type X: Calcium X (10X), Sodium X (13X)

Type Y: Sodium Y, Calcium Y

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.

Product Features

1. Adsorption is selective.

⑴ Choose the adsorption according to the different molecular diameter.

⑵ Select the adsorption according to the polarity of the molecule.

⑶ Selective adsorption according to the degree of molecular unsaturation.

⑷ Select adsorption according to different boiling points.

2. It has low concentration and high adsorption characteristics at higher temperature.

3. Cation exchange characteristics.

4. Catalytic properties.

⑴ The heterogeneous catalytic reaction is carried out on the surface of the catalyst. When the molecular sieve is used as a catalyst or carrier, the catalytic reaction is to catalyze the substances entering the micropores of the molecular sieve.

⑵ Only produce products whose molecules are smaller than the pores of the molecular sieve.

⑶ Because of the large surface area, it has high activity.

⑷ Strong resistance to poisoning and high thermal stability.

⑸ When used as a carrier, the metal catalyst can be evenly distributed on the inner surface of the molecular sieve, so it is easy to prepare a catalyst with good repeatability.

Factory information

Shanghai Xuefeng Molecular Sieve Co., Ltd. adopts the most advanced and fully automated assembly line molecular sieve production technology in China, and has positions for dosing, kneading, extrusion, drying, roasting and packaging. The main equipment includes pelletizing machine, hardening cylinder, kneader, extruder, belt dryer, rotary roasting furnace, vibrating screen, scale and other ancillary facilities. The production process parameters are all automatically controlled, and there is no paper recorder attached. , The results of the process parameters are comprehensively recorded, and at the same time, the operators of each position shall manually record the parameters every hour to ensure the traceability of the operation process. At the same time, the company pays attention to the inspection of intermediate products, and has set up sampling points for intermediate products in the ingredients, extrusion molding, and drying positions to ensure that the intermediate products meet the specified quality requirements.