For the hot-gas desulphurization of coal gases, ceramic pellets with different proportions of active component and binding agent were produced 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), respectively, as active component and two different clays (Westerwalder clay or Bentonit, respectively) as binding agent, as well as varying the 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 hot-gas desulphurization.