[Sulfur Recovery] Optimization of S-Zorb unit control to achieve energy savings and reduced consumption

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The last edit to this post was made by Xiaogong1985 on 2016-5-8 at 08:33. In 2013, Guangzhou Petrochemical reduced the annual consumption of adsorbents in its catalytic gasoline adsorption desulfurization (S-Zorb) units by 25% through the implementation of control optimization projects, saving 3.45 million yuan in costs； The comprehensive energy consumption of the coker gasoline hydrogenation unit decreased by 0.15 kg of standard oil per ton. 　　To improve the control performance of the processes and enhance the level of automatic control of the facilities, Guangzhou Petrochemical carried out PID parameter tuning and control optimization for the S-Zorb unit and the coker gasoline hydrogenation unit in 2013. The project team performs parameter tuning and control optimization for the controller, selects an appropriate type of controller, and uses advanced control algorithms such as prediction and internal model control to tune the PID parameters, thereby improving the control performance of the controlled system. After the implementation of the control optimization project, the operation of the S-Zorb unit became more stable, with an automatic control rate of over 98%; both the energy consumption and the amount of auxiliary materials used by the unit decreased compared to before.