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Введение
Rubber manufacturing processes—especially extrusion, heating, and pelletizing—generate complex organic exhaust gases. During heating and melting, rubber materials release white smoke, strong odors, and low‑concentration VOCs that can easily disperse into the surrounding environment if not properly controlled. To meet emission standards and improve workplace air quality, many rubber factories now use a treatment system combining gas collection, water‑spray scrubbing, and activated carbon adsorption.
This article explains how activated carbon works in rubber factory exhaust treatment and why it is widely used in low‑concentration organic gas purification.
How Rubber Factory Exhaust Is Generated
During the production of rubber granules or rubber products, several steps release organic fumes:
• Heating and melting of rubber materials
• Extrusion and pelletizing processes
• Cooling and shaping stages
• Additives and modifiers volatilizing at high temperatures
These processes will produce:
• White smoke or “rubber fumes”
• Strong rubber odors
• VOCs such as benzene derivatives and organic acids
• Fine particulate matter
Because these pollutants are light, odorous, and mobile, they must be captured and treated efficiently before being released into the atmosphere.
Standard Treatment Flow in Rubber Factories
A typical exhaust gas purification system includes the following stages:
Collection Hood (Gas Capture): Captures white smoke and rubber odor directly at the emission source.
Piping System (Branch + Main Duct): Transfers exhaust to the treatment equipment.
Water Spray Scrubber: Removes dust, fine particles, and water‑soluble components.
Cyclone Mixing Spray Tower: Enhances gas–liquid contact, improving odor and particulate removal.
Induced Draft Fan: Provides stable airflow and negative pressure.
Activated Carbon Adsorption Unit: Adsorbs VOCs and odor molecules in the final polishing step.
Activated carbon is the core component responsible for removing the remaining organic gases that cannot be captured by washing alone.
Activated Carbon Type for Rubber Exhaust
To effectively purify such gas streams, most rubber manufacturers use high‑CTC pellet activated carbon as the main adsorption media because of its strong capacity for organic vapors and long service life under continuous airflow.
| Параметр | Типичное значение |
| CTC (Carbon Tetrachloride Activity) | 60% – 80% |
| Benzene Adsorption | ≥ 25% |
| Площадь поверхности по БЭТ | 900 – 1100 m²/g |
| Pellet Diameter | 3 mm / 4 mm |
| Твердость | ≥ 95% |
| Влажность | ≤ 5% |
| Содержание золы | < 10% |
| Насыпная плотность | 480 – 520 kg/m³ |
| Pressure Drop | Низкий |
Заключение
Rubber factory fume treatment requires a combination of mechanical collection, water‑spray scrubbing, and activated carbon adsorption. Among these components, activated carbon plays a critical role in removing low‑concentration VOCs and rubber odors, providing a clean, stable, and cost‑effective solution.
If you need help choosing the right activated carbon for your rubber exhaust system, we can provide technical support and product recommendations anytime.