Most granular and pelletized activated carbon products are manufactured from high quality coal or coconut shell raw material. Non-toxic, tasteless, well-developed pores, reasonable distribution of three types of pores, and carbon tetrachloride> 80%. It has a strong adsorption capacity for most organic solvent vapors in a wide concentration range, and is widely applicable to the recovery of organic solvents such as benzene, xylene, ether, ethanol, acetone, gasoline, chloroform, and tetrachloromethane.