Abstract
Catalytic section of Claus process is significant for increasing the efficiency of sulfur recovery, and decreasing the amount of H2S emission to the environment. In this research, experiments at different gas hourly space velocities (GHSVs) and temperatures were carried out in a bench scale plant in the presence of both alumina (Al2O3) and titania (TiO2) commercial Claus catalysts. The feed composition and operating conditions were selected within the range of a target industrial scale plant. Thereafter, an isotherm model was constructed for the bench scale reactor, and its kinetic parameters were estimated using the obtained data. Results showed that H2S and CS2 conversions over Al2O3 and TiO2 Claus catalysts could be predicted with the average absolute deviation (AAD) of 9.86 and 30.03%, and 15.31 and 4.22%, respectively.
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