Title of article :
Catalytic effect of zinc oxide on the reduction of barium sulfate by methane
Author/Authors :
R. Alizadeh، نويسنده , , E. Jamshidi، نويسنده , , H. Ale Ebrahim، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2007
Abstract :
Reduction of barium sulfate by methane was investigated in this work. The thermogravimetric method was used to obtain kinetic parameters of the reaction in the temperature range of 900–975 °C at atmospheric pressure. The kinetics of the reaction has been studied both in the absence and presence of zinc oxide as a catalyst. The conversion–time data have been interpreted by using the grain model, and the effect of catalyst on the kinetic parameters has been elucidated. It was found that zinc oxide acted as fairly strong catalyst for the reaction, especially at higher temperatures. At about 975 °C the reaction rate constant was increased more than 7 times by using 2% of zinc oxide. This enhancement in the rate constant is valuable for industries.
Keywords :
Catalyst , Barium sulfate , Methane , Reduction , Kinetic study
Journal title :
Thermochimica Acta
Journal title :
Thermochimica Acta