Abstract
An industrial Ethanol Amine (EA) production plant was simulated and optimized. Due to lack of accurate reaction rate information, the first step involved obtaining reliable kinetic data from the SRI (Stanford Research Institute) industrial database and calculation using error minimization method. In the next step, by implementing the obtained reaction kinetics the whole plant was simulated using Hysys software. Simulation results were compared with the SRI data and showed that there is acceptable agreement between simulation and the measured industrial data. In the next step of study by applying the gradient search (GS) optimization technique the plant was optimized using: feeding ammonia to ethylene oxide (EO) molar ratio, water flow rate in the feed stream, and reactor temperature as optimization variables. Employing process profit as objective function the optimal operating conditions were found to be: ammonia to EO ratio of 5 (mol/mol), water flow rate of 52.59 kg mol/hr and reactor temperature of 85 °C.
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References
T. McMillan, SRI International 193(6), 1 (1991).
H. Hammer, Ethanolamines and propanolamines, Ullmann’s Encyclopedia of Industrial Chemistry, 6th Ed., New York, Wiley-VCH, 10, 1 (2003).
P. Fassler and A. Celeghin, A new approach to an established product: Cost-efficient production of ethanolamines, Sulzer Technical Review, Issue No. 3 (2008).
M. Frauenkron, Ethanolamines and propanolamines, Ullmann’s Encyclopedia of Industrial Chemistry, 7th Ed., New York, Wiley-VCH, 12, 475 (2008).
A. L. Kohl and R. Nielsen, Gas purification, 5th Ed., Houston, Texas, Gulf Publishing Company, 41 (1997).
J.G. Spight, Chemical and process design handbook, New York, McGraw-Hill (2002).
K. Weissermel, H.-J. Arpe, C. R. Lindley and S. Hawkins, Oxidation products of ethylene, Industrial Organic Chemistry, Wiley-VCH, 159 (2003).
M. Hatta, T. Ito, M. Miki and T. Okabe, Reaction of ethylene oxide with ammonia, Yukagaku (Journal of Japan Oil Chemists’ Society), 15, 215 (1966).
C. Ruehl, C. Hou, P. Lee and L. Armstrong, Design of a system of ethanolamine reactors, Course project CENG 403, Rice University, Houston, Texas (1997).
K. Kolmetz, W. K. Ng, P.W. Faessler, K. Senthil, Y. T. Lim, A.W. Slolev and T. M. Zygula, Hydrocarbon Processing, 84(5), 77 (2005).
C. Ruehl, C. Hou, P. Lee and L. Armstrong, Design of a system of ethanolamine reactor, CENG 403 (1997).
O. Levenspiel, Chemical reaction engineering, 3th Ed., New York, Wiley (1998).
MATLAB R2008a, http://www.mathwork.com (2008).
Aspen Technolgoy, Inc., Hysys user guide, Ten Canal park, Cambridge, USA (2005).
T. F. Edgar, D. M. Himmelblau and L. S. Lasdon, Optimization of chemical processes, 2th Ed., New York, McGraw-Hill (2001).
M. E. Masoumi, S. M. Sadrameli, J. Towfighi and A. Niaei, Journal of Energy, 31, 516 (2006).
http://www.petrochem-ir.net/esales-internetsales-prodprice-fa.html/ (2008).
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Zahedi, G., Amraei, S. & Biglari, M. Simulation and optimization of ethanol amine production plant. Korean J. Chem. Eng. 26, 1504–1511 (2009). https://doi.org/10.1007/s11814-009-0254-z
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DOI: https://doi.org/10.1007/s11814-009-0254-z