High Purity 3A Zeolite Molecular Sieve Pellets for Refining Processes

• Customization: Available
• CAS No.: 63231-69-6
• Formula: Na2o * Al2O3 * Xsio2 * Yh2o
• Model NO.: RJ-1214
• EINECS: 215-684-8
• Shape: Sphere
• Drying Method: Static Drying
• Kind: Mineral Desiccant
• Sorbent: Molecular Sieves
• Desiccant: Chemical Desiccant
• Static Water Adsorption: ≥21.5%
• Net Weight: 25kg/Carton
• Water Content: ≤1.5%
• Application: Hollow Glass, Adsoption Dryer, Air Compressor, etc
• Bulk Density: 680kg/M3
• Compressive Strength(N): ≥80/P
• Wear Ratio: ≤0.2%
• Sizes: 0.4-0.8mm, 1-2mm, 1.6-2.5mm, 2-4mm, 3-5mm, 4-6mm
• Wear Rate: 0.2% or Less
• Transport Package: Vacuum Plastic Bag
• Specification: 3A/4A/5A/10X/13X
• Trademark: RONGJIAN
• Origin: Pingxiang, China
• Package Size: 50.00cm * 70.00cm * 20.00cm
• Package Gross Weight: 25.500kg

Product Description

Product Description

Molecular Sieves

The High Purity 3A Zeolite Molecular Sieve Pellets are specially produced for various refining processes, delivering exceptional adsorption performance for water and moisture removal. With a uniform pore structure and high chemical stability, they selectively adsorb water molecules efficiently, preventing catalyst poisoning, equipment corrosion, and side reactions in petroleum refining and petrochemical production.
 
These pellets feature high mechanical strength, low dust generation, and excellent wear resistance, ensuring stable operation under high pressure and temperature conditions. They can be regenerated repeatedly, extending service life and reducing operating costs.
 
Widely used in cracking, reforming, gas drying and purification in refining systems, they effectively improve product purity and process stability. Compliant with industrial standards, our 3A molecular sieve ensures reliable performance, consistent quality, and strong adaptability for continuous refining operations.

Specification

Name	Unit	Molecular Sieve
shape	-	strip type		ball
diameter	mm	1.5-1.7	3.0-3.3	1.7-2.5	3.0-5.0
size ratio up to grade	%	≥98	≥98	≥96	≥96
bulk density	g/ml	≥0.60	≥0.60	≥0.60	≥0.60
wear ratio	%	≤0.20	≤0.25	≤0.20	≤0.20
crushing strength	N	≥45/cm	≥60/cm	≥45/p	≥45/p
static H2O adsorption	%	≥20	≥20	≥20	≥20
water content	%	≤1.5	≤1.5	≤1.5	≤1.5

Adsorption Mechanism

Size Exclusion: Molecules smaller than pore size (e.g., H2O: 2.6 Å) enter and adsorb; larger ones (e.g., CH4: 3.8 Å) are blocked.
Surface Interactions: Polar molecules (e.g., water, NH3) bind strongly via hydrogen bonding and electrostatic forces.
Thermodynamics: Exothermic process; adsorption capacity decreases with temperature.

Applications

Principles and Functions

1. Polarity & Adsorption Mechanism
Polar Cavity: The aluminosilicate framework creates an electrostatic field within pores due to unsatisfied charges (from Al³+ substitution in SiO4 tetrahedra).
Interactions:Polar Molecules (e.g., H2O, CO2, H2S): Bind via hydrogen bonding or dipole-cation attraction (e.g., H2O → K+ in 3A sieves).
Polarizable Molecules (e.g., CO2): Induced dipoles form transient bonds with lattice cations (e.g., Na+ in 13X sieves).
Selectivity: Smaller polar molecules (kinetic diameter ≤ pore size) are preferentially adsorbed over nonpolar ones (e.g., CH4).

2. Role in Desulfurization
Target Molecules:H2S (2.6 Å): Strongly adsorbed due to polarity and small size (fits even in 3A sieves).
COS (3.2 Å): Captured by larger-pore sieves (e.g., 4A or 5A).
Competitive Adsorption:H2O vs. H2S: Water typically dominates adsorption sites, requiring pre-drying of gas streams to optimize H2S removal.
CO2 Interference: CO2 (3.3 Å) competes with sulfur species in 4A/13X sieves; selective formulations (e.g., metal-doped sieves) mitigate this.

Company Profile

Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd.

Innovative Solutions for Environmental & Industrial Applications
Headquarters: Xiangdong District Industrial Park, Pingxiang City, Jiangxi Province, China
 
Core Capabilities
Advanced Manufacturing: Custom-designed towers and systems in ceramic, metal, and plastic materials.
Comprehensive Product Portfolio: 200+ specifications including:
• Ceramic/metal/plastic packing materials
• Molecular sieves & activated alumina
• Catalysts & petrochemical additives
• Activated carbon & eco-friendly filtration media
Turnkey Services: Full-scale pollution control and wastewater treatment projects.
Corporate Strengths
• ISO 9001 Certified - Guaranteed quality management system compliance.
• 300+ Workforce - Including 100+ specialized engineers and technicians.
• 30-Acre Production Base - Integrated R&D and manufacturing facilities.
 
Awards & Innovations
• National Science & Technology Achievement Award
• Provincial Gold Medal & Famous Brand Product
• 17 Patented Technologies - Protecting proprietary advancements.

Certifications

Packaging & Shipping

FAQ