Molecular sieve desiccant

Category:Other purification agent series

3A molecular sieve is an alkali metal aluminosilicate that adsorbs molecules with a critical diameter greater than 3A. During water adsorption, 3A molecular sieve can exclude other hydrocarbon molecules. It is widely used in the deep drying of petroleum cracked gases such as ethylene, propylene, butadiene, acetylene, and natural gas. It can also be used to dry polar substances (such as ethanol), liquefied petroleum gas, and solvents. After adsorption by 3A molecular sieve, the water content of the gas can be reduced to less than 1 ppm (dew point less than -70°).

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3A Molecular Sieve

　　3A molecular sieve is an alkali metal aluminosilicate that can adsorb molecules with a critical diameter greater than 3A. In the water adsorption process, 3A molecular sieve can exclude other hydrocarbon molecules. It is widely used in the deep drying of petroleum cracked gases such as ethylene, propylene, butadiene, acetylene, and natural gas, and can also be used for drying polar substances (such as ethanol), liquefied petroleum gas, and solvents. After adsorption by 3A molecular sieve, the water content of the gas can be reduced to less than 1 ppm (dew point less than -70°).

Index Name		3A Molecular Sieve
		Ф2-3mm	Ф3-5mm	Ф5-8-0mm
Abrasion rate % ≤		0.3	0.3	0.3
Bulk density g/ml ≥		0.7	0.7	0.7
Static water adsorption % ≥		21	21	21
Static ethane adsorption % ≥		3	3	3
Compressive Strength	Crushing strength N/piece ≥	60	80	90
	Coefficient of variation of crushing strength ≤	0.3	0.3	0.3
Particle size % ≥		96	96	96
Packaging water content % ≤		1

4A Molecular Sieve

　　4A molecular sieve is an alkali metal aluminosilicate that can adsorb molecules with a critical diameter no larger than 4A. It can adsorb H2O, NH3, H2S, SO2, CO2, C2H5OH, C2H6, C2H4, C3H6, etc. It is widely used in the drying of gases and liquids, and can also be used for the refining or purification of certain gases or liquids.

Index Name		4A Molecular Sieve
Index Name		Ф2-3-mm	Ф3-5-mm	Ф5-8-mm
Abrasion rate % ≤		0.2	0.2	0.2
Bulk density g/ml ≥		0.7	0.7	0.7
Static water adsorption % ≥		21	21	21
Static ethane adsorption % ≥		14	14	14
Compressive Strength	Crushing strength N/piece ≥	60	70	80
Compressive Strength	Coefficient of variation of crushing strength ≤	0.3	0.3	0.3
Particle size % ≥		96	96	96
Packaging water content % ≤		1.5

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Molecular sieve desiccant

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Molecular sieve desiccant

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