The QR series is wood base granular activated carbon of low density, high activity, high surface area and unique pore size distribution. which is mainly designed for the application of gasoline recovery device system, the product has advantages of high adsorption effect, high butane working capacity, good desorption performance, low gas flow resistance and low density. The products can also meet the requirements of food grade quality, which can also be used in the area of gas or Vocs purification, liquid phase adsorption, industrial decolorization and purification, etc