Title :
Robust model based control of dividing wall column
Author :
Dohare, Rajeev Kumar ; Singh, Karam ; Kumar, Ravindra
Author_Institution :
Dept. of Chem. Eng., Malaviya Nat. Inst. of Technol., Jaipur, India
Abstract :
In this paper, a robust model based control has been studied for BTX (Benzene-Toluene-Xylene) separation system in a dividing wall column. Compositions of the three products are indirectly controlled by regulating the corresponding temperatures by manipulating reflux rate, side-stream flow rate, and reboiler heat duty. It has been observed that the model based control shows good performance even in the presence of ± 10% change in the feed flow rate, feed composition, and liquid split factor in comparison to conventional controllers. This controller has less settling time (almost 1.5 hrs) as compared to PI controller (approximately 3-4 hrs).
Keywords :
PI control; distillation equipment; process control; robust control; separation; temperature control; BTX; PI controller; benzene-toluene-xylene separation system; distillation; dividing wall column; feed composition; feed flow rate; liquid split factor; reboiler heat duty; reflux rate; robust model based control; side-stream flow rate; temperature control; Feeds; Heating; Liquids; Load modeling; Mathematical model; Robustness; BTX separation; dividing wall column; multivariable control; robust model based control;
Conference_Titel :
Control Communication and Computing (ICCC), 2013 International Conference on
Conference_Location :
Thiruvananthapuram
Print_ISBN :
978-1-4799-0573-7
DOI :
10.1109/ICCC.2013.6731633
