CERAMIC PELLETS FOR THE HOT-GAS DESULFURI ZATION .3.

For the hot-gas desulphurization of coal gases, ceramic pellets with d ifferent proportions of active component and binding agent were produc ed and tested in a plant of a polytechnic. There were used zinc oxide with a specific surface area of 3 m(2) . g(-1) or 70 m(2) . g(-1), res pectively, as active component and two different clays (Westerwalder c lay or Bentonit, respectively) as binding agent, as well as varying th e temperature regime for the pellet baking. The pellet combination of ZnO 70 m(2) . g(-1) and Bentonit baked at a temperature of 700 degrees C developed the best voidage-structure parameters for an effective ho t-gas desulphurization.