Air compressor dedicated activated alumina with high strength, low wear and tear, immersion soft, no expansion, no powder, no rupture. Can be widely used in petroleum pyrolysis gas, ethylene propylene gas depth drying and hydrogen production, air separation plant, the instrument dry air dryer drying, hydrogen peroxide treatment can also remove the waste gas sulfur gas, sulfur dioxide, hydrogen fluoride, hydrocarbons and so on Contaminants.