Activated Carbon Gas Purification: Scientific Principles and Precise Application
The Core of Activated Carbon Gas Purification: Strong Physical and Chemical Adsorption The purifying power of activated carbon stems from its unique internal structure. Imagine that after the internal pore structure of a small piece of high-quality activated carbon is expanded, its surface area may be comparable to the size of a football field (the specific surface area is usually as high as 1000–1500 square meters per gram). This well-developed pore network, especially the rich micropores, constitutes a huge “molecular trap.” When gas containing impurities (whether it is VOCs, volatile organic compounds, foul-smelling gases, hydrogen sulfide, solvent vapor, or other harmful substances) passes through the activated carbon bed, the gas molecules collide with the enormous inner surface of the activated carbon during movement. At this time, the powerful van der Waals force (physical adsorption) will firmly “grasp” most molecules and bind them to the inner wall of the pore channel. For some specific harmful gases (such as acid gases, mercury vapor, etc.), activated carbon can also undergo chemical reactions (chemical adsorption) with specially loaded chemicals on the surface to transform or fix them. This process efficiently separates and removes target pollutants, delivering clean gas. Tailor-Made: Choose the Types of Activated...
Learn More + 
