Use and Selection of Activated Carbon in Biogas Treatment
In addition to being an essential source of clean energy production, biogas also plays a critical role in reducing environmental pollution by effectively processing organic waste. However, the hydrogen sulfide, VOCs and other harmful components it contains may reduce the use value of biogas and pose a potential threat to the environment and human health. Therefore, activated carbon is an effective purification material that plays a vital role in biogas purification.
Biogas Sources and Components: Biogas results from organic substances decomposed by microorganisms. It can be obtained from sewage treatment plants, agricultural waste treatment and municipal waste compost. The main components of biogas are:
- Methane (CH4): The main energy component accounting for 50% to 70% of biogas.
- Carbon Dioxide (CO2): Another critical component, accounting for 30% to 50% of biogas.
- Hydrogen Sulfide (H2S): Hydrogen sulfide, a harmful gas, can be hazardous to the environment and human health.
- Ammonia (NH3): An impurity usually found in small amounts in biogas.
Selection of Activated Carbon: Activated carbon is known for its ability to adsorb harmful gases in biogas. Through physical and chemical adsorption, activated carbon can effectively remove hydrogen sulfide, VOC and other harmful components.
- Unprocessed Activated Carbon: Removes harmful gases such as hydrogen sulfide through physical adsorption. Thanks to its micro pores, it adsorbs hydrogen sulfide molecules and separates them by physical interaction.
- KOH Impregnated Activated Carbon: It is a type that can effectively adsorb hydrogen sulfide and react with it to convert it into sulfur without harming the environment. Its high alkaline surface provides effective purification.
- KI Impregnated Activated Carbon: It has a strong adsorption capacity by reacting with siloxane. It adsorbs siloxane and forms a removable compound, helping to protect equipment from corrosion.
Conclusion: Activated carbon is critical in biogas purification and can effectively remove harmful gases with its excellent adsorption properties. By collaborating with Carbontech, you can obtain activated carbon solutions suitable for your specific needs and increase the efficiency of your biogas treatment projects.

