Selecting coal as the raw material and adding our unique formula of adhesive through kneading, kneading, filtering, extrusion, forming, drying (sintering), it can be processed into any shape, with high compressive strength, large specific surface area, small through-hole resistance, developed micropores, high adsorption capacity, and long service life. It is widely used in waste gas purification, air purification, gas separation and purification, deodorization and oil removal, etc. The pollutants that can be removed to varying degrees include nitrogen oxide, carbon tetrachloride, chlorine, benzene, acetone, ethanol, ether, ethyl ester, phosgene, and foul smelling gases. Technical indicators