Abstract
In this study, one of the recently published the kinetic models for the Claus reaction furnace was modified through utilizing a wide experimental data from the Claus reaction furnace of oil refineries and applying a novel two-step optimization approach. The Claus reaction furnace of oil refineries was modeled using the detailed kinetic model. The Mean Absolute Percentage Errors (MAPE) of the modified kinetic model for H2S, SO2, H2O and H2 are 3.04%, 2.28%, 4.66% and 5.90%, respectively. The mean absolute percentage errors of the validated tests for H2S, SO2, H2O and H2 are 6.72%, 5.74%, 4.74% and 7.98%, respectively. A multi-objective optimization study was carried out to examine the operating condition of the Claus reaction furnace in order to maximize reaction furnace temperature while maintaining H2S to SO2 flow ratio to a constant value of two. Three correlations were obtained with MAPEs 1.83%, 4.66% and 16.52% for reaction furnace temperature, sulfur conversion efficiency percentage and COS conversion percentage, respectively.
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