Spherical Aluminosilica Gel: High-Performance Catalyst Carrier for Melamine, Phthalic Anhydride & Gas Separation

Created on 08.26

Introduction: Advanced Catalyst Carrier for Demanding Processes

In the chemical and petrochemical industries, the performance of a catalytic process depends heavily on the quality of the catalyst carrier. A superior carrier must offer a uniform pore structure, excellent thermal stability, high mechanical strength, and good activity.
Spherical aluminosilica gel is a high-performance material designed to meet these exact requirements. With the chemical formula mSiO₂·nAl₂O₃·xH₂O, it combines the advantages of silica gel with the catalytic activity of alumina. It is widely used as a catalyst and catalyst carrier for producing melamine and phthalic anhydride, as well as in petroleum refining, natural gas dehydration, and temperature swing adsorption for aromatic hydrocarbon separation.
Spherical aluminosilica gel catalyst carrier beads in a laboratory dish

What Is Spherical Aluminosilica Gel?

Spherical aluminosilica gel is a spherical, inorganic adsorbent and catalyst carrier composed of silicon dioxide (SiO₂) and aluminum oxide (Al₂O₃). Its uniform internal microporous structure provides a large surface area and controlled pore volume, while the presence of alumina enhances its surface activity and thermal stability.
The material is available in two grades (I# and II#) with different Al₂O₃ contents, bulk densities, pore volumes, and specific surface areas, allowing users to select the most suitable grade for their specific catalytic or adsorption process.
Cross-section diagram of the microporous internal structure of spherical aluminosilica gel

Key Characteristics

  • Stable chemical properties:
resistant to degradation in demanding environments.
  • Uniform internal microporous structure:
consistent pore size for predictable performance.
  • Excellent thermal stability:
suitable for high-temperature catalytic processes.
  • High mechanical strength:
resists attrition and crushing in industrial reactors.
  • Good activity:
enhanced by the presence of alumina.
  • Spherical shape:
improves flow characteristics and reduces pressure drop.
  • Customizable particle size:
standard 35–200 μm, with custom sizes available.

Technical Specifications

Item
Specifications
I#
II#
Size, μm
35–200 / custom
35–200 / custom
Qualified size ratio, %, ≥
85
85
Bulk density, g/L, ≥
450
500
Pore volume, mL/g, ≥
0.6
0.5
Loss on heating, %, ≤
4.0
4.0
Rattler loss, %, ≤
7.0
7.0
Al₂O₃, %, ≥
3.0
8.0
Specific surface area, m²/g
350
400
Note: Specifications can be customized according to your process requirements.

Main Applications

1. Catalyst and Catalyst Carrier

Spherical aluminosilica gel is mainly used as a catalyst and catalyst carrier for industrial products such as:
  • Melamine
  • Phthalic anhydride
Its uniform pore structure and good activity make it an excellent support for active catalytic components.

2. Petroleum Industry Catalyst

It also serves as a catalyst in the petroleum industry, where its thermal stability and mechanical strength are essential for demanding refinery processes.

3. Natural Gas Dehydration

The material is applied to natural gas dehydration, effectively removing water vapor to prevent corrosion and hydrate formation in pipelines and processing equipment.

4. Temperature Swing Adsorption (TSA)

Spherical aluminosilica gel is highly suitable for use as a temperature swing adsorbent, particularly for aromatic hydrocarbon separation. Its selective adsorption properties allow efficient separation of aromatic compounds from mixed streams.

5. Liquid Adsorbents and Gas Separation

It is used as a liquid adsorbent and in gas separation processes, including the selective adsorption and separation of organic gases and liquids.
Petrochemical refinery using spherical aluminosilica gel for gas separation and adsorption

Packaging and Customization

Standard packaging:
  • 20 kg per compound bag
  • 500 kg per container bag
Customization available:
Packing and size may be customized per your specific requirements. We can adjust particle size distribution, Al₂O₃ content, pore volume, surface area, and packaging to match your application.

Why Choose Jusen Chem?

  • Direct manufacturer:
stable supply and factory-direct pricing.
  • Two grades available:
I# and II# with different Al₂O₃ contents.
  • Custom sizes:
35–200 μm standard, custom production available.
  • Technical support:
our team can help you select the right grade for your catalyst or adsorption process.
  • Fast delivery:
efficient logistics from China to global markets.
  • Quality assurance:
products meet international standards; third-party inspection available upon request.
We are committed to supplying high-performance aluminosilica gel products for the chemical, petrochemical, and environmental industries.

FAQ

Q1: What is spherical aluminosilica gel used for?
It is mainly used as a catalyst and catalyst carrier for melamine and phthalic anhydride. It is also used as a catalyst in the petroleum industry, for natural gas dehydration, temperature swing adsorption for aromatic hydrocarbon separation, liquid adsorbents, and gas separation.
Q2: What is the chemical formula?
The chemical formula is mSiO₂·nAl₂O₃·xH₂O.
Q3: What is the difference between I# and II#?
The main differences are Al₂O₃ content, bulk density, pore volume, and specific surface area. I# has Al₂O₃ ≥ 3.0% and specific surface area of 350 m²/g. II# has Al₂O₃ ≥ 8.0% and specific surface area of 400 m²/g.
Q4: What particle sizes are available?
Standard size is 35–200 μm. Custom sizes are available upon request.
Q5: What is the standard packaging?
Standard packaging is 20 kg per compound bag or 500 kg per container bag. Custom packaging is available.
Q6: Can you provide samples?
Yes, samples can be provided for evaluation. Please contact us with your specific requirements.

Contact Us

For quotations, technical data sheets, or samples of spherical aluminosilica gel, please contact us:
📧 Email: info@jusenchem.com
📞 WhatsApp: +86 18954690080
🌐 Website: www.jusenchem.com
Jusen Chem — your reliable partner for high-performance aluminosilica gel and catalyst carrier materials.
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