Dynamic Simulation of the Super Claus Sulfur Recovery System
Abstract: Coal chemical, oil refining industry and natural gas industry provided the main sulfur production in China. China is a country with coal as the main energy source, high sulfur coal is used for many factory productions and needs to recover sulfur from sulfur containing medium such as high sulfur gas which is produced from desulfurization unit, generally in the form of simple substance sulfur as the final product. This paper from the sulfur recovery unit process principle and equipment principle starting, the general chemical process dynamic modeling software, OmniSim, is adopted to establish a set of dynamic mathematics of the super Claus sulfur recovery unit, which is treated with sulfuric acid gas in coal chemical industry. According to the actual operating condition data, the reaction kinetic parameters of the sulfur recovery reaction device were corrected. The results show that the model of the main burner is successfully modeled by the Gibbs free energy minimization, and the average relative error of the simulation results and the actual operating conditions is about 5%, which can meet the industrial application. According to this, this paper provides a scheme of dynamic model of sulfur recovery system using chemical process dynamic modeling software. Based on the dynamic model, the dynamic response of the production operation and the test of the automatic control scheme can be simulated.
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