Molecular Sieve Desiccant

Production Introduction

In the production of natural gas, dehydration is an essential step. Because if water content is higher, the natural gas pipeline will be eroded by water, causing damage to equipment. Molecular sieve desiccant, as an adsorbent with uniform pores, only adsorbs molecules smaller than its pore size and has selective adsorption properties, so it is widely used in the process of natural gas dehydration.

Specification

Product feature and application

Advantages of molecular sieve in use：

1.  Selective adsorption according to molecular size and shape, only adsorbing molecules smaller than the pore size

2.  Molecular sieve desiccant has selective adsorption performance for small polar molecules and unsaturated molecules. The greater the polarity, the higher the degree of unsaturation, and the stronger the selective adsorption.

3.  It has strong water absorption, even at higher temperature, larger space velocity and lower water content, there is still quite high water absorption capacity

   

Molecular sieve desiccant is an aluminosilicate crystal with many micropores with uniform pore size, the framework is usually negatively charged, and the pores have cations that balance the negative charge of the framework. The earliest molecular sieve discovered was natural zeolite. It was found that the ore mined near the crater would produce bubbles after heating, so it was called zeolite. In the 1930s, the United Carbide Company of the United States first synthesized 4A and 13X, using molecular sieves as desiccants in the petrochemical field. Later, the United Carbon Company successively discovered Y-type molecular sieves, etc., it was applied them in the field of catalysis, replacing the previously used silicon-aluminum pellets, which increased the gasoline yield by more than 15%. $8 billion in economic benefits. Later, a series of molecular sieves such as ZSM, phospho-aluminum, MS41, and all-silica zeolite were discovered one after another, and they have been widely used in petrochemical fields, drying and other fields. It can be said that there would be no petrochemical industry without molecular sieves. Molecular sieve catalysis is now a vital priority area in chemistry, a key technology in refining and environmental science.

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