product Matrix Details: Four Core Grades with Distinct Advantages
1. 3A Molecular Sieve Adsorbent – Alcohol Dehydration Specialist
With an effective pore size of approximately 3 angstroms, 3A molecular sieve selectively adsorbs water molecules while excluding most organic molecules. This characteristic makes it ideal for deep drying of unsaturated hydrocarbons (such as ethylene and propylene) and polar organic liquids (such as methanol and ethanol).
Typical Applications: Fuel ethanol dehydration, cracking gas drying, refrigeration system drying
Specifications: 1.6mm, 3.2mm extrudates; spheres
Key Specifications: Static water adsorption ≥21%, attrition rate ≤0.2%
2. 4A Molecular Sieve Adsorbent – Versatile Drying Champion
With an effective pore size of approximately 4 angstroms, 4A molecular sieve can adsorb molecules with kinetic diameters less than 4 angstroms, including water, methanol, hydrogen sulfide, and carbon dioxide. Due to its balanced adsorption performance and excellent cost-effectiveness, 4A is the most widely used Molecular Sieve Desiccant grade in industrial applications.
Typical Applications: Compressed air drying, natural gas dehydration, PSA oxygen/nitrogen pretreatment, insulating glass
Specifications: 1.6mm, 3.2mm extrudates; 8×12 mesh spheres
Key Specifications: Static water adsorption ≥22%, carbon dioxide adsorption ≥18%
3. 5A Molecular Sieve Adsorbent – Separation and Purification Tool
With an effective pore size of approximately 5 angstroms, 5A molecular sieve can adsorb linear molecules such as normal paraffins while excluding branched-chain and cyclic hydrocarbons. This characteristic makes it irreplaceable in the separation of normal paraffins from iso-paraffins.
Typical Applications: Normal paraffin separation, pressure swing adsorption hydrogen production, air purification
Specifications: 1.6mm, 3.2mm extrudates; spheres
Key Specifications: Static water adsorption ≥22%, n-hexane adsorption ≥13%
4. 13X Molecular Sieve Adsorbent – Deep Purification Expert
With an effective pore size of approximately 10 angstroms, 13X molecular sieve has the largest pore volume and specific surface area, capable of adsorbing most organic molecules and impurities. For applications requiring extremely low residual impurities, 13X is the optimal choice.
Typical Applications: Cryogenic air separation pre-purification, natural gas desulfurization and decarbonization, VOC adsorption
Specifications: 1.6mm, 3.2mm extrudates; 8×12 mesh spheres
Key Specifications: Static water adsorption ≥26%, carbon dioxide adsorption ≥19%
Technical Innovations: Behind the Quality Assurance
All upgraded Molecular Sieve Desiccant products incorporate three core proprietary technologies:
Core Technology 1: High-Purity Raw Material Formulation
By optimizing synthesis processes, we achieve precise control of the silicon-to-aluminum ratio in molecular sieve powder, ensuring complete and consistent crystal structure. XRD testing shows product crystallinity above 98% with impurity phase content below 1%.
Core Technology 2: Low-Dust Forming Process
Traditional molecular sieve products tend to generate dust during transportation and use, potentially causing downstream equipment blockage or product contamination. Our new binder and forming technology controls attrition rate below 0.2%, significantly exceeding the industry standard (typically 0.5%).
Core Technology 3: Controlled Activation Process
Activation is a critical step determining molecular sieve performance. We have established precise temperature-time activation curves to ensure each batch achieves optimal activation before shipment, eliminating the need for extended activation before first use.
Quality Certifications and International Standards
Our full range of Molecular Sieve Desiccant products has passed the following international certifications:
ISO 9001:2015 Quality Management System Certification
ISO 14001:2015 Environmental Management System Certification
REACH Pre-registration
RoHS Compliance Testing
Product performance meets or exceeds the following international standards:
GB/T 10504-2017 (3A Molecular Sieve)
GB/T 13550-2015 (4A Molecular Sieve)
HG/T 2690-2012 (5A Molecular Sieve)
HG/T 2783-2012 (13X Molecular Sieve)
One-Stop Service: From Selection to After-Sales
Beyond providing high-quality Molecular Sieve Desiccant products, we offer customers the following value-added services:
Technical Selection Support: Professional engineers recommend optimal product grades and loading solutions based on customer operating parameters (medium, temperature, pressure, flow rate, impurity content)
Sample Testing Service: Free samples available for laboratory or pilot-scale validation
Loading Guidance: Detailed loading instructions provided, with on-site technical guidance available upon request
Performance Monitoring: Regular performance tracking of supplied products to ensure long-term stable operation
Regeneration Optimization: Assistance in optimizing regeneration process parameters to reduce operating energy consumption
Supply Capacity and Global Presence
Our company has an annual production capacity of 30,000 tons of Molecular Sieve Desiccant, including 8,000 tons of 3A, 12,000 tons of 4A, and 10,000 tons of 5A and 13X combined. Products are exported to over 50 countries and regions across Europe, America, Southeast Asia, the Middle East, and Africa.
To better serve global customers, we have established overseas warehouses and service centers in the Netherlands, the United States, and Singapore, enabling fast delivery within 7 days to European and American markets and within 3 days to Southeast Asia.
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