Molecular Sieves – Zeolites 3A, 4A, 5A and X13
Application:
Preparing molecular sieves for oil, gas, and other industries These products are final B2B consumer products.
Product Introduction:
Zeolites are a kind of molecular sieve. They are one of the most important surface (physical) absorbers for water and sulfur compounds in the oil and gas industry, such as mercaptans and H2S (necessary for crude oil and gas refinement), aqueous impurities and pollutants (necessary for wastewater treatment), and air pollutants, such as CO and CO2, due to high polarity of the internal surface of their cavities. These compounds are a kind of aluminosilicate with broad diversity. Based on their molecular structure and crystal lattice, zeolites can be categorized into two main groups: natural and synthetic. Some of the most important synthetic zeolites include A, X, Y, and ZSM-5. Zeolite A is divided into A3, A4, and A5 due to their different cavity size (i.e., 3Å, 4Å, and 5Å). Cavity size is the major factor for absorption speed, absorption rate, and
the material that can be absorbed. These three zeolites can be converted to each other in a metallic salt-saturated media through the ionic exchange. Other molecular sieves used in the industry include active carbon, clay, porous glass, silica gel, and active alumina.
Technical Specifications:
Zeolite A3 | Potassium sodium aluminosilicate with 3Å-diameter cavities, used for deep drying (dehydrating) fuel gases produced by the cracking process, unsaturated hydrocarbons (ethylene, propylene, butadiene, and acetylene), aromatic compounds (BTX), lightweight alcoholic solvents (ethanol and methanol), and food grade CO2 |
Zeolite A4 | Sodium aluminosilicate with 4Å-diameter cavities, used for drying gases, alkane solvents, gases such as argon, the drying agent for medicine packages and electronic parts |
Zeolite A5 | Calcium sodium aluminosilicate with 5Å-diameter cavities, used for drying natural gas and absorbing CO2, CO, H2S, nitrogen, hydrogen, and inert gases |
Zeolite X13 | Type X sodium aluminosilicate with 9Å-diameter cavities, used for absorbing water, mercaptans, and CO2, normal drying of air in industries, separating oxygen from nitrogen in hospital oxygen concentrators, low recovery temperature, long service life |
International Standards or Permission:
Product approval (A3 and X13) by Iranian petroleum industry Co. research center
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Type | These products are final B2B consumer products. |