Ceramic Structured Packing Factory

Ceramic Structured Packing: Characteristics and Industrial Applications

Introduction
Ceramic structured packing is a type of column internals used in chemical processing, distillation, and environmental applications. Known for its corrosion resistance and thermal stability, it is often selected for services involving aggressive chemicals or high temperatures. Wangdu (Hebei) Chemical Engineering Co., LTD supplies ceramic structured packing designed for use in various separation and mass transfer processes.

Material Properties and Design
Ceramic structured packing is typically manufactured from high-alumina content ceramics (e.g., 99% alumina) or chemical porcelain. This composition provides high resistance to a wide range of acids and alkalis across a broad pH spectrum. The material can continuously operate at temperatures up to 1000°C, depending on the specific ceramic grade.

The packing is characterized by its geometrically ordered structure, featuring a regular array of channels that promote uniform vapor and liquid distribution. Common geometries include honeycomb-style grids and corrugated sheet designs, with specific surface areas generally ranging from 100 to 500 m²/m³. This high surface area facilitates efficient mass and heat transfer.

Key Applications
The primary industrial uses for ceramic structured packing include:

• Gas Absorption and Scrubbing: Removing acidic contaminants (SOₓ, NOₓ, HCl) from flue gases in environmental scrubbers.

• Distillation and Stripping: Separating heat-sensitive or corrosive chemical mixtures in processes where metal packings would degrade.

• High-Temperature Processes: Serving as support media in reactors or direct heat recuperators where thermal stability is required.

Performance Parameters
The performance of structured packing is evaluated using several key metrics:

• Theoretical Plates per Meter (N/m): A measure of separation efficiency. Ceramic packings can provide 2 to 5 theoretical plates per meter, depending on the geometry and operating conditions.

• Pressure Drop: Typically ranges from 20 to 100 Pa per meter of packing height, which is generally lower than that of random packings for equivalent duties.

• HETP (Height Equivalent to a Theoretical Plate): Values commonly range from 0.3 to 0.6 meters for standard configurations under design conditions.

Manufacturing and Supply
Wangdu (Hebei) Chemical Engineering Co., LTD produces ceramic structured packing using extrusion and high-temperature sintering processes. Quality control measures include dimensional checks, acid resistance testing per ASTM C279, and cold crushing strength tests (which often exceed 50 MPa for industrial-grade ceramics).

Conclusion
Ceramic structured packing provides a technically sound solution for mass transfer operations in demanding environments. Its operational suitability is defined by its material properties and geometric characteristics, which are engineered to meet specific process requirements in chemical and environmental industries.

Reference

1. ASTM C279 - Standard Specification for Chemical-Resistant Masonry Units.

2. Kister, H.Z., et al. (2008). Distillation Design. McGraw-Hill.

3. Wangdu (Hebei) Chemical Engineering Co., LTD. Product Specification Sheets.