Extruded Carbon Pellets (EAC) for Industrial Gas Scrubbing & VOC Emission Control

The Industrial Challenge of Gas-Phase Air Purification

Industrial exhaust streams from chemical manufacturing, paint spray booths, pharmaceutical synthesis, and wastewater treatment plants contain hazardous volatile organic compounds (VOCs), toxic solvent vapors, and offensive odor compounds like hydrogen sulfide ($H_2S$) and mercaptans.

To meet stringent regional environmental emissions standards without overloading exhaust fan blowers, plant engineers rely on Extruded Activated Carbon Pellets (EAC).

1. Low Pressure Drop Across High-Flow Air Handling Systems

Granular carbon has irregular particle shapes that pack tightly together, creating substantial aerodynamic resistance (high pressure drop $Delta P$). For large industrial facilities venting thousands of cubic meters of air per hour, high backpressure requires oversized, power-hungry exhaust blowers.

Mawai Extruded Carbon Pellets are manufactured in uniform 3mm and 4mm cylindrical diameters. Their regular geometry ensures consistent void fractions throughout the filter bed, allowing air to flow freely while maintaining complete surface contact with internal adsorption pores.

2. High VOC and Solvent Adsorption Capacity

Manufactured from high-density coconut shell carbon with iodine numbers from 900 to 1100 mg/g, our extruded pellets feature dense microporous networks tailored for gas-phase molecules:

• Solvent Recovery: Captures aromatic solvents like toluene, xylene, benzene, acetone, and ethanol with high desorption recovery rates.
• Odor & Gas Scrubbing: Neutralizes municipal sewage odors, biogas trace impurities, and industrial ammonia emissions.
• Catalytic & Impregnated Options: Can be chemically impregnated with potassium hydroxide ($KOH$) or potassium iodide ($KI$) for targeted acid gas and hydrogen sulfide neutralization.

3. Rugged Hardness & Low Dust Generation

Air filtration beds subject carbon pellets to continuous aerodynamic turbulence and vibrational movement. Soft extruded carbons break into powder, clogging downstream HEPA filters and creating hazardous dust hazards.

Mawai EAC pellets maintain a hardness rating $ge 98%$, ensuring that exhaust filtration systems run cleanly and reliably for thousands of operating hours.