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Dehydration Agent 4A Molecular Sieve Desiccant For Ethanol Ethylene

10 Kilograms
Dehydration Agent 4A Molecular Sieve Desiccant For Ethanol Ethylene
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Name: 4A Molecular Sieve Desiccant
Color: Beige
Feature 1: High Abrasion Resistance
Feature 2: High Crush Strength
Potassium A Type Molecular Sieve: Spheric Particle
Package Moisture: ≤ 1.5%
Equilibrium Water Capacity: ≥ 22%
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Basic Infomation
Place of Origin: Shaanxi,China
Brand Name: Xi'an Lvneng
Certification: ISO9001:2008
Model Number: 4A Molecular Sieve
Payment & Shipping Terms
Packaging Details: 1. Carton Drum/25KG 2. Carton Box/25KG; 3. Iron Drum/150KG
Delivery Time: 3-15 work days
Payment Terms: L/C, T/T
Supply Ability: 50 Tons/ per Month
Product Description

4A Molecular Sieve Desiccant Dehydration Agent for Ethanol & Ethylene​


Introduction of 4A Molecular Sieve Desiccant:

The characteristics and uses of 4a molecular sieve, 4a molecular sieve is a microporous cubic lattice of synthetic aluminum silicate. It is called a "molecular sieve" because it absorbs or repels molecules of different substances depending on the size of the pores in the crystal. Materials whose molecular diameter is smaller than the pore size of the molecular sieve can enter the molecular sieve and be adsorbed.


Ion exchange performance - water softening function: Each oxygen atom in the 4A molecular sieve framework is shared by two adjacent tetrahedra. This structure forms a large crystal cavity that can be occupied by cations and water molecules. These cations and water molecules have greater mobility, allowing for cation exchange and reversible dehydration. 4A molecular sieve conducts ion exchange with aluminum ions on the framework, and each aluminum ion has a negative charge, which can bind not only sodium ions, but also other cations. Calcium and magnesium ions can enter the large crystal pores occupied by the original sodium ions and replace the sodium ions in the 4A molecular sieve, that is, the sodium ions in the 4A molecular sieve can undergo ion exchange and can be combined with Ca2 and Mg2 ions in hard water. The exchange achieves the purpose of softening the water quality.


Molecular Formula Na2O·Al2O3·2SiO2·9/2H2O
SiO2/ Al2O3 ≈ 2
Normal Pore Opening 4 Angstroms (Å)
Regeneration temp. (°C) 200-315
Advantages High Stability; High Strength; Large Water Absorption; Low Attrition; Deep Dehydration









Specification of 4A Molecular Sieve Desiccant:

Items Unit 8*12 Mesh 4*6 Mesh
Bead Size mm 1.6-2.5 3.0-5.0
Bulk Density g/ml ≥ 0.70-0.82 0.65-0.80
Equilibrium Water Capacity @ 25℃ wt% 20.5-22.5 20.5-22.5
Equilibrium Methanol Capacity wt% 15.0 15.0
Heat of Adsorption BTU/lb of H2O 1800 1800
Crush Strength Point Contact N ≥ 30-80 85-160
Variation Coefficient - 0.3 0.3
Attrition Rate wt% 0.1 0.1
Size Qualification % 98 98
Package Moisture wt% 1.5 1.5
The interval value of the indexes above are based on the grade of Molecular Sieve 4A


Display of 4A Molecular Sieve Desiccant:

Dehydration Agent 4A Molecular Sieve Desiccant For Ethanol Ethylene 0


Storage of 4A Molecular Sieve Desiccant:

The molecular sieve shall be stored at room temperature, in which the relative humidity does not exceed 90%, and be not exposed to air, and prevented from water, acids, and alkalizes.


FAQ of Molecular Sieve Adsorbent:

1. Q: Could we send a free sample for reference?
    A: Yes, of course. Don't be shy, go ahead asking for a sample.

2. Q: What about the price and MOQ?
    A: We promise the price is the most competitive with top quality. The small quantity 
orders can be accepted.

3. Q: What is the lead time?
    A: Within 15 days after the receipt of payment or L/C.

4. Q: Payment term?
    A: 30% T/T in advance, 70% T/T balance before shipment.

5. Q: How to solve the quality problems after sales?
    A: Take photos of the problems & send 
us. After confirmation, we will make a satisfying solution within 3 days.


The Attention of 4A Molecular Sieve Desiccant:

1. The product cannot be exposed to the open air and should be stored in dry condition with an air-proof package.

2. The product should be regenerated after a certain period of adsorption. The appropriate regenerated temperature would be better below 350°C.

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