| The current investigation was carried out to find a method to remove dimethyl sulfide in the black liquor gasification gas for preparing the standard gas combusting in gas turbine. A simulating experiment to remove dimethyl sulfide was taken in the condition of hydrogen atmosphere, high temperature and with ZnO catalyst. Conclusions from the experiments were: Dimethyl sulfide can be converted into hydrogen sulfide in the condition of hydrogen atmosphere (such as black liquor gasification gas), high temperature and with ZnO catalyst, the reaction activation temperature was in range of 450-500℃; Reaction temperature, concentration of dimethyl sulfide, hydrogen concentration and catalyst contact time are the main factors affecting the converting reaction. In condition of temperature 520~600℃, 10%~50% (v%)of H2, 47.06~200 mg/L of CH3SCH3 and contact time 0.1~0.25 s, the conversion of CH3SCH3 is 96.0%~97.8%, and the sulfur in exhaust gas is less than 5.0mg/L. |
