Generic placeholder image

Combinatorial Chemistry & High Throughput Screening


ISSN (Print): 1386-2073
ISSN (Online): 1875-5402

Research Article

Efficient Production of Light Olefin Based on Methanol Dehydration: Simulation and Design Improvement

Author(s): Mahsa Kianinia and Seyed Majid Abdoli*

Volume 24, Issue 4, 2021

Published on: 20 July, 2020

Page: [581 - 586] Pages: 6

DOI: 10.2174/1386207323666200720104614

Price: $65


Background: Ethylene, propylene, and butylene as light olefins are the most important intermediates in the petrochemical industry worldwide. Methanol to olefins (MTO) process is a new technology based on catalytic cracking to produce ethylene and propylene from methanol.

Aims and Objective: This study aims to simulate the process of producing ethylene from methanol by using Aspen HYSYS software from the initial design to the improved design.

Methods: Ethylene is produced in a two-step reaction. In an equilibrium reactor, the methanol is converted to dimethyl ether by an equilibrium reaction. The conversion of the produced dimethyl ether to ethylene is done in a conversion reactor. Changes have been made to improve the conditions and get closer to the actual process design carried out in the industry. The plug flow reactor has been replaced by the equilibrium reactor, and the distillation column was employed to separate the dimethyl ether produced from the reactor.

Result: The effect of the various parameters on the ethylene production was investigated. Eventually, ethylene is produced with a purity of 95.5 % in the improved design, and thermal integration was performed to minimize energy consumption.

Conclusion: It was finally found according to the exothermic reaction of the dimethyl ether production, thermal integration in the process reduces the energy consumption in the heater and cooler.

Keywords: Methanol, light olefin, ethylene, simulation, process design, aspen HYSYS.

Amghizar, I.; Vandewalle, L.A.; Van Geem, K.M.; Marin, G.B. New trends in olefin production. Engineering, 2017, 3(2), 171-178.
Sattler, J.J.H.B.; Ruiz-Martinez, J.; Santillan-Jimenez, E.; Weckhuysen, B.M. Catalytic dehydrogenation of light alkanes on metals and metal oxides. Chem. Rev., 2014, 114(20), 10613-10653.
[] [PMID: 25163050]
Shi, L.; Wang, Y.; Yan, B.; Song, W.; Shao, D.; Lu, A-H. Progress in selective oxidative dehydrogenation of light alkanes to olefins promoted by boron nitride catalysts. Chem. Commun. (Camb.), 2018, 54(78), 10936-10946.
[] [PMID: 30124691]
Gorzin, F.; Yaripour, F. Production of light olefins from methanol over modified H-ZSM-5: effect of metal impregnation in high-silica zeolite on product distribution. Res. Chem. Intermed., 2019, 45(2), 261-285.
T, REN; M, PATEL; K, BLOK. Olefins from conventional and heavy feedstocks: Energy use in steam cracking and alternative processes. Energy, 2006, 31(4), 425-451.
Torres Galvis, H.M.; de Jong, K.P. Catalysts for production of lower olefins from synthesis gas: A review. ACS Catal., 2013, 3(9), 2130-2149.
Wang, S. Direct conversion of syngas into light olefins with low CO 2 emission. ACS Catal., 2020, 10(3), 2046-2059.
Kolesnichenko, N.V.; Ezhova, N.N.; Snatenkova, Y.M. Lower olefins from methane: recent advances. Russ. Chem. Rev., 2020, 89(2), 191-224.
Taheri Najafabadi, A.; Fatemi, S.; Sohrabi, M.; Salmasi, M. Kinetic modeling and optimization of the operating condition of mto process on sapo-34 catalyst. J. Ind. Eng. Chem., 2012, 18(1), 29-37.
Parvaneh Nakhostin Panahi, S.M.M.A.N.A.F.D.S. Simulation of methanol synthesis from synthesis\ngas in fixed bed catalytic reactor using\nmathematical modeling and neural networks. Int. J. Sci. Eng. Res., 2012, 3(2), 1.
Gogate, M.R. Methanol-to-olefins process technology: current status and future prospects. Petrol. Sci. Technol., 2019, 37(5), 559-565.
Tian, P.; Wei, Y.; Ye, M.; Liu, Z. Methanol to olefins (MTO): From fundamentals to commercialization. ACS Catal., 2015, 5(3), 1922-1938.
Boltz, M.; Losch, P.; Louis, B. A general overview on the methanol to olefins reaction: recent catalyst developments. Adv. Chem. Lett., 2013, 1(3), 247-256.
Walzl, R.; Ag, L. Ethylene 1 2007.
Salmasi, M.; Fatemi, S.; Hashemi, S.J. Sharif University of Technology MTO reaction over SAPO-34 catalysts synthesized by combination of TEAOH and morpholine templates and different silica sources. Sci. Iran., 2012, 19(6), 1632-1637.
Alwahabi, S.M.; Froment, G.F. Conceptual Reactor Design for the Methanol-to-Olefins Process on; , 2004, pp. 5112-5122.
Aghamohammadi, S.; Haghighi, M.; Charghand, M. Methanol conversion to light olefins over nanostructured CeAPSO-34 catalyst : Thermodynamic analysis of overall reactions and effect of template type on catalytic properties and performance. Mater. Res. Bull., 2014, 50, 462-475.
Pyl, S.P.; Schietekat, C.M.; Reyniers, M.F.; Abhari, R.; Marin, G.B.; Van Geem, K.M. Biomass to olefins: Cracking of renewable naphtha. Chem. Eng. J., 2011, 176–177(December), 178-187.
Xiang, D.; Qian, Y.; Man, Y.; Yang, S. Techno-economic analysis of the coal-to-olefins process in comparison with the oil-to-olefins process. Appl. Energy, 2014, 113, 639-647.
Onel, O.; Niziolek, A.M.; Elia, J.A.; Baliban, R.C.; Floudas, C.A. Biomass and natural gas to liquid transportation fuels and olefins (BGTL+C2-C4): Process synthesis and global optimization. Ind. Eng. Chem. Res., 2015, 54(1), 359-385.
Arvidsson, M.; Haro, P.; Morandin, M.; Harvey, S. Comparative thermodynamic analysis of biomass gasification-based light olefin production using methanol or DME as the platform chemical. Chem. Eng. Res. Des., 2016, 115, 182-194.
Yu, B.Y.; Chien, I.L. Design and optimization of the methanol-to-olefin process. part I: steady-state design and optimization. Chem. Eng. Technol., 2016, 39(12), 2293-2303.
Ortiz-Espinoza, A.P.; Noureldin, M.M.B.; El-Halwagi, M.M.; Jiménez-Gutiérrez, A. Design, simulation and techno-economic analysis of two processes for the conversion of shale gas to ethylene. Comput. Chem. Eng., 2017, 107, 237-246.
Aspen. Aspen HYSYS V10.1 2017.
Rostami, R.B.; Lemraski, A.S.; Ghavipour, M.; Behbahani, R.M.; Shahraki, B.H.; Hamule, T. Kinetic modelling of methanol conversion to light olefins process over silicoaluminophosphate (SAPO-34) catalyst. Chem. Eng. Res. Des., 2016, 106, 347-355.

Rights & Permissions Print Export Cite as
© 2023 Bentham Science Publishers | Privacy Policy