In this blog, we will provide comprehensive insights into the sources of VOCs, as well as delve into the principles and mechanisms through which activated carbon efficiently adsorbs VOCs.
What is VOC source?
VOCs are emitted from a variety of different industries such as:• chemical, oil, petrochemical, pharmaceutical,
• pesticide, auto parts, coating, electrical,
• electronic components, printing, electroplating,
• tank trucks, rubber, photosensitive materials, fiber,
• plastic, artificial leather, dry cleaning and so on.
| Hydrocarbons | benzene, toluene, n-hexane, naphtha, cyclohexane, methylcyclohexane, dioxane, diluent, gasoline, etc. |
| Olefins | trichloroethylene, perchloroethylene, trichloroethane, dichloromethane, trichlorobenzene, dichloroethane, trichloromethane, carbon tetrachloride, freon, etc. |
| Aldehydes and ketones | formaldehyde, furfural, acetone, MEK (methyl ethyl ketone), MIBK (methyl isobutyl ketone), cyclohexanone, etc. |
| Esters | ethyl acetate, butyl acetate, ethyl oleate, etc. |
| Ethers | methyl ether, methyl ether, THF (tetrahydrofuran), etc. |
| Alcohols | methanol, ethanol, isopropanol, n-butanol, isobutanol, etc. |
| Monomers for polymerization | vinyl chloride, acrylic acid, styrene, vinyl acetate, etc. |
| Amides | dimethylformamide (DMF), dimethylacetamide, etc. |
What is adsorbent?
Adsorbent, also known as adsorption material, is a solid substance that can effectively adsorb certain components from gas or liquid. With the large specific surface area and suitable pore structure, adsorbent has a strong adsorption capacity for VOCs and do not chemically react with media.
Common adsorption materials include: activated carbon, silica gel, alumina, molecular sieves, natural clay, etc. The most representative of these adsorption materials is activated carbon, which has a very good adsorption performance and is used for VOCs adsorption, gas masks, water purification, etc.
Activated carbon
Activated carbon is produced by heating carbon-rich materials, such as wood, coconut shells, or coal, at high temperatures in the absence of oxygen. This process, known as activation, creates countless tiny pores and crevices on the surface of the carbon, vastly increasing its surface area and enhancing its adsorption capabilities.How does activated carbon remove VOCs?
Activated carbon is an adsorbent with a highly porous structure and adsorption capacity, which can effectively adsorb and remove volatile organic compounds. After the VOC waste gas passes through an appropriate treatment device and contacts with activated carbon, the organic matter in the waste gas is adsorbed into the pores on the surface of the activated carbon and reduces its concentration in the atmosphere.
The working principle of activated carbon adsorption to remove VOC waste gas is based on the physical adsorption between the adsorbent and the organic matter. Activated carbon has a large specific surface area and pore volume, which enables it to provide more adsorption sites to adsorb VOC molecules. In addition, activated carbon has a good selective adsorption capacity for different types of VOCs and can adsorb specific organic matter, thereby enhancing the waste gas treatment effect.
Conclusion
Activated carbon has been a better and effective solution for VOC removal. Its porous structure and high adsorption capacity has make it top-choice for industry and households.Zhulin Carbon stands out as a leader in providing high-quality activated carbon solutions tailored for VOC removal. With their commitment to innovation and excellence, Zhulin Carbon offers a range of products designed to meet diverse needs and applications. If any question about VOC, contact us for a better solution.
