Which alumina grade of inert ceramic ball should I choose for catalyst bed support?

Standard 17–23% Al2O3 inert balls suit most hydrotreating and reforming catalyst supports. Choose 23–30% for higher crush strength, and 99% alumina where high-temperature steam could cause silica leaching that would poison downstream catalysts.

What information do you need to recommend tower packing?

Please share the tower diameter and bed height, the service (distillation, absorption, stripping or scrubbing), the medium and its corrosivity, operating temperature and pressure, and any pressure-drop or capacity targets. Our engineers then propose packing type, material and size.

Can I receive samples and technical data sheets before ordering?

Yes. Samples of standard sizes and technical data sheets covering chemical composition, bulk density, crush strength and other key properties can be provided for evaluation before a production order.

How are ceramic and metal packing products packed for export?

Depending on product and volume, we use cartons, jumbo bags, plastic drums or wooden cases on fumigation-free or fumigated pallets, with clear marking for each size and batch to simplify site receiving.

Where is Zhongtai located and can buyers visit the factory?

We are based in Pingxiang, Jiangxi Province, a recognized Chinese hub for industrial ceramics and chemical packing. Buyers and third-party inspectors are welcome to visit; Korean customers audited our ceramic production in July 2018.

China 90% Al2O3 Honeycomb Ceramic Proppant Filter for Hydrogenation Units, High-Purity Alumina Catalyst Bed Support & Industrial Filtration Manufacturer, Quotes

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China 90% Al2O3 Honeycomb Ceramic Proppant Filter for Hydrogenation Units, High-Purity Alumina Catalyst Bed Support & Industrial Filtration Manufacturer, Quotes

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Product Description

Product Description

The Honeycomb Ceramic Proppant Filter is an advanced catalyst bed support and protection medium, engineered with a dense honeycomb structure made from ≥90% high-purity alumina. It combines the functions of mechanical support, uniform fluid distribution, and impurity filtration in one patented design, making it the superior replacement for traditional inert ceramic balls and perforated plates in hydrogenation units, hydrotreating reactors, and other high-temperature catalytic processes.

Product Highlights

Ultra-High 90% Alumina Purity

Manufactured from high-purity alumina ceramic, delivering exceptional corrosion resistance, thermal stability up to 1400°C, and inertness that prevents any chemical interaction with the catalyst.

Dense Honeycomb & Bird-Nest Structure

Features internal reinforcing ribs forming a nest-like honeycomb, providing high axial and radial crush strength while maintaining an exceptionally high void fraction above 64%.

Low Pressure Drop & High Flow Capacity

The cross-sectional open area is 1.5–2.5 times larger than conventional ceramic balls, significantly reducing fluid resistance and energy consumption in the reactor bed.

Integrated Filtration & Protection

Acts as a physical barrier that traps fine particles, welding slag, and other impurities, effectively protecting the precious catalyst bed downstream from fouling and plugging.

Superior Gas-Liquid Distribution

The intricate mesh structure cuts and redistributes gas and liquid phases uniformly, ensuring optimal contact with the catalyst and preventing channeling or hot spots.

Proven in Hydrogenation Units

Widely specified as a top-bed grading support and bottom support layer in hydrotreating, hydrocracking, and reforming units, replacing multiple layers of inert balls with a single highly efficient layer.

Technical Specifications

Size (mm)	Internal Structure	Bulk Density (g/cm³)	Void Ratio (%)	Axial Crush Strength (KN/pc)	Specific Surface Area (m²/m³)
φ3	4-Strand Cross	1.3–1.5	64	>0.8	2200
φ6	Asterisk Rib	1.3–1.5	66	>1.6	1750
φ13	300 Mesh Hole	1.1–1.3	72	>3.0	1700
φ25	300 Mesh Hole	0.8–1.0	73	>5.0	1550
φ45	300 Mesh Hole	0.7–0.9	75	>10.0	1480

Frequently Asked Questions

Q What is a Honeycomb Ceramic Proppant Filter?

It is an advanced catalyst bed support and protection medium manufactured with ≥90% high-purity alumina. Designed with a dense honeycomb geometry, it integrates structural mechanical support, fluid redistribution, and particulate filtration in high-temperature catalytic environments.

Q How does this filter outperform traditional inert ceramic balls?

Compared to traditional ceramic balls, it offers a cross-sectional open area 1.5 to 2.5 times larger and a void ratio exceeding 64%. This drastically reduces bed pressure drop, improves fluid distribution, prevents channeling, and allows a single layer to replace multi-layer ball assemblies.

Q What is the maximum operating temperature of the proppant filter?

Owing to its ≥90% high-purity alumina composition, it maintains exceptional chemical inertness and thermal stability at temperatures up to 1400°C without reacting with active process catalysts.

Q What role does it play in particulate filtration?

The filter forms an efficient physical barrier that traps fine particulate matter, welding scale, and process impurities upstream, safeguarding the main catalyst bed from fouling, crust formation, and premature pressure-drop buildup.

Q Which reactor applications typically utilize this product?

It is extensively utilized in hydrogenation units, hydrotreating reactors, hydrocracking units, and catalytic reforming systems as both top-bed grading/filtering layers and bottom bed support layers.

Q What sizes and internal structures are available?

Standard diameters include φ3 (4-strand cross), φ6 (asterisk rib), and φ13, φ25, and φ45 (300 mesh hole structures), with axial crush strengths scaling from >0.8 KN/pc up to >10.0 KN/pc according to reactor requirements.