ABSTRACT
This chapter describes the carbonization processes and activation of walnut shell (WS), cedar nut shells and grape stones. Thermal decomposition of wood results, in the release of gas which do not condense under normal conditions, as well as vapors of liquid products. In the process of chemical activation of non-carbonized initial raw material, a coal of high activity and relatively large micropores obtained, but it is contaminated with inorganic additives used in the production process. To characterize activated carbons, it is necessary to evaluate not only the surface area and sample porosity, but also the pore-size distribution. The initial sample of WS is very dense and strong and does not contain the pores on its surface. A systematic study on the process of carbonization of plant raw materials was carried out. The results of the carried out fundamental investigations allowed developing general scientific principles of studying carbonization of plant raw materials with the aim to use them as sorbents.
