Simulation, Control and Experimental Analysis of 1,3Butadiene Purification Unit

Document Type: Full article


1 University of Sistan and Baluchestan

2 MSc graduate, USB

3 PhD student,USB


Simulation of a process and analysis of its resulting data in both dynamic and steady-state conditions are fundamental steps in understanding the process in order to design and efficient control of system as well as implementing operational cost reduction scheme. In the present paper, steady and unsteady state simulation of Amir Kabir1, 3 butadiene purification units has been done by using Aspen and Aspen Dynamic software together with the Peng- Robinson equation of state to investigate the system responses to the disturbances.
In the unsteady state simulation mode; the flow rates, pressure, temperature and level (FPTL) were controlled by Proportional-Integral-Derivative (PID) controllers in the unit. Finally, transient responses to changes such as feed temperature, feed flow rates, steam flow rates and the duties of the re-boiler of columns in unit were gained. For reaching to purified 1,3 butadiene, sensitivity of the process to the fluctuations of feed temperature and on the duties of the re-boilers of the columns is noticeable .


Main Subjects

[1]   Amirkabir Petrochemical Company, Design Document.

[2]   Yildirim, O., Kiss, A.A. and Kenig, E.Y., “Dividing wall columns in chemical process industry: A review on current activities”, Separation and Purification Technology, 80(3), 403-417(2011).

[3]   Rahimi, R., Mousavian, M.A. and Sadrzadeh Moghdam, F., “Simulation of butadien plant”, 14th National Chemical Engineering Congress, Sharif University of Technology, Tehran, Iran, (persian language), (1391).

[4]   Sodmand, M.H., “Modeling divided wall column”, M.Sc. Thesis, University of Sistan and Baluchestan, Zahedan, Iran, (persian language), (1391).

[5]   Mohammadi Doust, A.,   Shahraki, F. and  Sadeghi, J., “Simulation, control and sensitivity analysis of crude oil distillation unit”, Journal of Petroleum and Gas
Engineering, 3(6),99-113 (2012).

[6]   Lee, B.I. and Kesler, M.G., “A generalized thermodynamic correlation based on three parameter corresponding states”, AIChE. J., 21(3), 510 (1975).

[7]   Luyben, W.L., Distillation design and control using aspen simulation, John Wiley & Sons, New York, p. 10-283 (2006).

[8]   Aspen Physical Property System; Physical property methods and models, Aspen Technol., p. 356 (2013).