Steam Activation Rotary Kiln For Coconut Shell Activated Carbon

Product Specification

Steam activation rotary kiln for coconut shell activated carbon

1.Product Introduction Calcination Rotary Kiln

The Steam Activation Rotary Kiln is a high-temperature thermal processing system specifically designed for the continuous, large-scale production of coconut shell activated carbon. Utilizing high-quality coconut shells as raw material, the equipment employs a two-step process of carbonization and steam activation. In a high-temperature (typically 900–1,000°C), anaerobic or low-oxygen environment, water steam is used to deeply activate the carbonized material. This process carves out a highly developed porous structure within the carbon skeleton. Featuring an inclined rotating cylinder, precise temperature control, and advanced sealing, the kiln ensures uniform heating and continuous discharge for industrial-grade production of premium activated carbon.

2.Application Calcination Rotary Kiln

•  Drinking Water Purification: The produced carbon is widely used in residential and industrial water filters to efficiently remove residual chlorine, odors, and organic pollutants (such as trihalomethanes).
•  Gold Extraction: Due to its superior adsorption capacity for gold-cyanide complexes, it is the core adsorbent used in Carbon-in-Pulp (CIP) and Carbon-in-Leach (CIL)processes in gold smelting.
•  Air Purification: Utilized in HVAC systems, refrigerators, automotive deodorizers, and industrial off-gas treatment to adsorb formaldehyde, benzene series, and hazardous gases.
•  Food & Pharmaceutical Refining: Used for decolorization, deodorization, and solvent recovery in the MSG, beverage, and pharmaceutical industries.
•  Environmental Remediation: Treating industrial wastewater and waste gases containing heavy metals and organic pollutants to support emission reduction.

3.Working Principle Calcination Rotary Kiln

1. Raw Material Pretreatment: Coconut shells are crushed and screened before being fed into a carbonization furnace, where initial pyrolysis generates the carbonized intermediate.
2.  Rotary Kiln Activation: The carbonized material enters the inclined rotary kiln. As the kiln shell rotates slowly, the material moves from the high end toward the discharge end. High-temperature water steam is introduced from the lower end, achieving counter-current contact with the carbon.
3.  Steam Activation Reaction: At 900–1,000°C, the steam reacts with carbon . This chemical etching of the carbon skeleton creates a vast network of micropores and mesopores, significantly increasing the specific surface area to over 1,100 m²/g.
4.  Cooling & Collection: The activated carbon is cooled via a dedicated system before being screened and packaged as the final product.

4.Advantages Calcination Rotary Kiln

•   Continuous Production: The rotary kiln supports 24/7 continuous operation with high automation (PLC control), drastically increasing capacity and batch stability.
•   Uniform Activation: The rotation of the kiln shell ensures even heat distribution. Combined with precise temperature and steam regulation, this achieves consistent and repeatable pore structures.
•   Energy Saving Eco-Friendly: Modern units are equipped with waste heat recovery systems that can preheat secondary air to over 700°C, lowering energy consumption. The sealed design minimizes off-gas leakage.
•   Sustainable Raw Material: By utilizing coconut shells—a renewable resource—the process turns agricultural waste into high-value products, aligning with green manufacturing trends.

5.Technical Specifications

6.Our Solutions