| abstract |
The invention provides a method for carbonizing cotton stalks with anaerobic steam. The method comprises: cutting cotton stalks into sections, soaking the cotton stalks in NH 4 Cl solution, taking out the soaked cotton stalks, draining After drying, the drained cotton stalks are placed in a container, heated and carbonized by water vapor, cooled to room temperature, washed and dried to obtain biochar. The biochar obtained by the method has good specific surface area, pore structure and organic carbon content, and has good improvement effect when used for soil improvement. |