MODELING OF CONTINUOUS STIRRED TANK REACTOR FOR ESTERIFICATION PROCESS

Maksudov  Olimjon  Rikhsiboyevich; Norkobilov  Adham  Tilovovich; Bakhtiyorov  Abdulaziz  Nodirbek ogli; Zaripov  Orifjon

This paper presents a comprehensive study on the synthesis of ethyl acetate through
the esterification of acetic acid with ethanol using a continuous stirred tank reactor (CSTR). Ethyl
acetate is a significant solvent in various industries due to its eco-friendly characteristics and economic
efficiency. The study develops a detailed mathematical model focusing on the operating of the CSTR to
enhance the understanding of the reaction kinetics and thermodynamics in a continuous processing
environment. The reactor model was validated with experimental data to optimize process parameters,
aiming to improve yield and selectivity. Key variables such as reactant ratios, and operational
temperatures were methodically varied to study their effects on the esterification process. Results
indicated that optimal conditions achieved a significant yield improvement while maintaining process
sustainability. This research not only advances the operational efficiency of ethyl acetate synthesis but
also supports the broader application of CSTR in similar chemical processes.

Name of journalTechnical science and innovation
Number of edition2024 №2
View count 38

Web Address

DOI

Date of creation in the UzSCI system 16-08-2024

Read count 38

Date of publication 14-08-2024

Main LanguageIngliz

Pages43-47

Tags

simulation

reaction kinetics

ethyl acetate

esterification

continuous stirred tank reactor

English

This paper presents a comprehensive study on the synthesis of ethyl acetate through
the esterification of acetic acid with ethanol using a continuous stirred tank reactor (CSTR). Ethyl
acetate is a significant solvent in various industries due to its eco-friendly characteristics and economic
efficiency. The study develops a detailed mathematical model focusing on the operating of the CSTR to
enhance the understanding of the reaction kinetics and thermodynamics in a continuous processing
environment. The reactor model was validated with experimental data to optimize process parameters,
aiming to improve yield and selectivity. Key variables such as reactant ratios, and operational
temperatures were methodically varied to study their effects on the esterification process. Results
indicated that optimal conditions achieved a significant yield improvement while maintaining process
sustainability. This research not only advances the operational efficiency of ethyl acetate synthesis but
also supports the broader application of CSTR in similar chemical processes.

Tags

simulation

reaction kinetics

ethyl acetate

esterification

continuous stirred tank reactor

№ Author name position Name of organisation

1 Maksudov .R. Researcher, Tashkent State Technical University

2 Norkobilov A.T. Associate professor Shahrisabz branch of the Tashkent Institute of Chemical Technology, Shahrisabz city

3 Bakhtiyorov A. . Bachelor student Shahrisabz branch of the Tashkent Institute of Chemical Technology

4 Zaripov O.. DSc, Professor Tashkent State Technical University

№ Name of reference

1 1. C.Estevan, J.Estévez, M.A.Sogorb, and E.Vilanova, ‘Ethyl acetate’, in Encyclopedia of Toxicology, Elsevier, 2024, pp. 435–441. doi: 10.1016/B978-0-12-824315-2.01014-9. 2. J.Otera and J.Nishikido, Esterification: Methods, Reactions, and Applications. John Wiley & Sons, 2009.

2 3. N.Cherkasov, S.J.Adams, E.G.Bainbridge, and J. A. M. Thornton, ‘Continuous stirred tank reactors in fine chemical synthesis for efficient mixing, solids-handling, and rapid scale-up’, React. Chem. Eng., vol. 8, no. 2, pp. 266–277, 2023, doi: 10.1039/D2RE00232A. 4. I.-L. Chien, Y.-P. Teng, H.-P. Huang, and Y. T. Tang, ‘Design and control of an ethyl acetate process: coupled reactor/column configuration’, J. Process Control, vol. 15, no. 4, pp. 435–449, Jun. 2005, doi: 10.1016/j.jprocont.2004.07.003.

3 5. N. Ahmed, Z. Maha, H. Al-Hassani, and H. AlJendeel, ‘Kinetic Study of Esterification Reaction’, AlKhawarizmi Eng. J., vol. 6, pp. 33–42, Jan. 2010. 6. S. Hauan, S. M. Schrans, and K. M. Lien, ‘Dynamic Evidence of the Multiplicity Mechanism in Methyl tert -Butyl Ether Reactive Distillation’, Ind. Eng. Chem. Res., vol. 36, no. 9, pp. 3995–3998, Sep. 1997, doi: 10.1021/ie970237c. 7. M. Yin et al., ‘Tailoring Ni based catalysts by indium for the dehydrogenative coupling of ethanol into ethyl acetate’, Green Energy Environ., p. S2468025723001280, Oct. 2023, doi: 10.1016/j.gee.2023.10.001.

4 8. Z. Felfelian and M. Mahdavi, ‘A new ZrC nano powder solid acid catalyst for the esterification synthesis of ethyl acetate’, Catal. Commun., vol. 182, p. 106752, Sep. 2023, doi: 10.1016/j.catcom.2023.106752. 9. Y. Ye, L. Gao, J. Xu, L. Wang, L. Mo, and X. Zhang, ‘Effect of CuO species and oxygen vacancies over CuO/CeO2 catalysts on low-temperature oxidation of ethyl acetate’, J. Rare Earths, vol. 41, no. 6, pp. 862–869, Jun. 2023, doi: 10.1016/j.jre.2023.02.010. 10. N. I. G. Barrera et al., ‘A Novel Process Using Ion Exchange Resins for the Coproduction of Ethyl and Butyl Acetates’, Green Sustain. Chem., vol. 08, no. 03, pp. 221–246, 2018, doi: 10.4236/gsc.2018.83016.

5 11. T. H. L. Jr, B. A. Tennant, D. M. Pond, and T. J. Glenn, ‘Preparation of ethyl acetate’, EP0061395B1, Oct. 24, 1984 Accessed: Apr. 19, 2024. [Online]. Available: https://patents.google.com/patent/EP0061395B1/en 12. A. Y. Adesina, I. B. Obot, Ahmad. A. Sorour, S. Mtongana, S. B. Mamilla, and A. A. Almathami, ‘Corrosion challenges and prevention in Ethyl Acetate (EA) production and related processes – An overview’, Eng. Fail. Anal., vol. 127, p. 105511, Sep. 2021, doi: 10.1016/j.engfailanal.2021.105511. 13. J. Ma, S. Wang, Y. Duan, C. Ding, and X. Wang, ‘Synthesis of Ethyl Acetate by the Esterification Process: Process Optimization’, Eng. Adv., vol. 3, no. 6, pp. 449– 453, Jan. 2024, doi: 10.26855/ea.2023.12.002.

6 14. Y. Liu, E. Lotero, and J. G. Goodwin, ‘Effect of water on sulfuric acid catalyzed esterification’, J. Mol. Catal. Chem., vol. 245, no. 1–2, pp. 132–140, Feb. 2006, doi: 10.1016/j.molcata.2005.09.049. 15. F. S. Atalay, ‘Kinetics of the Esterification Reaction Between Ethanol and Acetic Acid’, Dev. Chem. Eng. Miner. Process., vol. 2, no. 2–3, pp. 181–184, Jan. 1994, doi: 10.1002/apj.5500020210. 16. A. Fredenslund, R. L. Jones, and J. M. Prausnitz, ‘Group‐contribution estimation of activity coefficients in nonideal liquid mixtures’, AIChE J., vol. 21, no. 6, pp. 1086–1099, Nov. 1975, doi: 10.1002/aic.690210607.

Waiting

№	Author name	position	Name of organisation
1	Maksudov .R.	Researcher,	Tashkent State Technical University
2	Norkobilov A.T.	Associate professor	Shahrisabz branch of the Tashkent Institute of Chemical Technology, Shahrisabz city
3	Bakhtiyorov A. .	Bachelor student	Shahrisabz branch of the Tashkent Institute of Chemical Technology
4	Zaripov O..	DSc, Professor	Tashkent State Technical University

№	Name of reference
1	1. C.Estevan, J.Estévez, M.A.Sogorb, and E.Vilanova, ‘Ethyl acetate’, in Encyclopedia of Toxicology, Elsevier, 2024, pp. 435–441. doi: 10.1016/B978-0-12-824315-2.01014-9. 2. J.Otera and J.Nishikido, Esterification: Methods, Reactions, and Applications. John Wiley & Sons, 2009.
2	3. N.Cherkasov, S.J.Adams, E.G.Bainbridge, and J. A. M. Thornton, ‘Continuous stirred tank reactors in fine chemical synthesis for efficient mixing, solids-handling, and rapid scale-up’, React. Chem. Eng., vol. 8, no. 2, pp. 266–277, 2023, doi: 10.1039/D2RE00232A. 4. I.-L. Chien, Y.-P. Teng, H.-P. Huang, and Y. T. Tang, ‘Design and control of an ethyl acetate process: coupled reactor/column configuration’, J. Process Control, vol. 15, no. 4, pp. 435–449, Jun. 2005, doi: 10.1016/j.jprocont.2004.07.003.
3	5. N. Ahmed, Z. Maha, H. Al-Hassani, and H. AlJendeel, ‘Kinetic Study of Esterification Reaction’, AlKhawarizmi Eng. J., vol. 6, pp. 33–42, Jan. 2010. 6. S. Hauan, S. M. Schrans, and K. M. Lien, ‘Dynamic Evidence of the Multiplicity Mechanism in Methyl tert -Butyl Ether Reactive Distillation’, Ind. Eng. Chem. Res., vol. 36, no. 9, pp. 3995–3998, Sep. 1997, doi: 10.1021/ie970237c. 7. M. Yin et al., ‘Tailoring Ni based catalysts by indium for the dehydrogenative coupling of ethanol into ethyl acetate’, Green Energy Environ., p. S2468025723001280, Oct. 2023, doi: 10.1016/j.gee.2023.10.001.
4	8. Z. Felfelian and M. Mahdavi, ‘A new ZrC nano powder solid acid catalyst for the esterification synthesis of ethyl acetate’, Catal. Commun., vol. 182, p. 106752, Sep. 2023, doi: 10.1016/j.catcom.2023.106752. 9. Y. Ye, L. Gao, J. Xu, L. Wang, L. Mo, and X. Zhang, ‘Effect of CuO species and oxygen vacancies over CuO/CeO2 catalysts on low-temperature oxidation of ethyl acetate’, J. Rare Earths, vol. 41, no. 6, pp. 862–869, Jun. 2023, doi: 10.1016/j.jre.2023.02.010. 10. N. I. G. Barrera et al., ‘A Novel Process Using Ion Exchange Resins for the Coproduction of Ethyl and Butyl Acetates’, Green Sustain. Chem., vol. 08, no. 03, pp. 221–246, 2018, doi: 10.4236/gsc.2018.83016.
5	11. T. H. L. Jr, B. A. Tennant, D. M. Pond, and T. J. Glenn, ‘Preparation of ethyl acetate’, EP0061395B1, Oct. 24, 1984 Accessed: Apr. 19, 2024. [Online]. Available: https://patents.google.com/patent/EP0061395B1/en 12. A. Y. Adesina, I. B. Obot, Ahmad. A. Sorour, S. Mtongana, S. B. Mamilla, and A. A. Almathami, ‘Corrosion challenges and prevention in Ethyl Acetate (EA) production and related processes – An overview’, Eng. Fail. Anal., vol. 127, p. 105511, Sep. 2021, doi: 10.1016/j.engfailanal.2021.105511. 13. J. Ma, S. Wang, Y. Duan, C. Ding, and X. Wang, ‘Synthesis of Ethyl Acetate by the Esterification Process: Process Optimization’, Eng. Adv., vol. 3, no. 6, pp. 449– 453, Jan. 2024, doi: 10.26855/ea.2023.12.002.
6	14. Y. Liu, E. Lotero, and J. G. Goodwin, ‘Effect of water on sulfuric acid catalyzed esterification’, J. Mol. Catal. Chem., vol. 245, no. 1–2, pp. 132–140, Feb. 2006, doi: 10.1016/j.molcata.2005.09.049. 15. F. S. Atalay, ‘Kinetics of the Esterification Reaction Between Ethanol and Acetic Acid’, Dev. Chem. Eng. Miner. Process., vol. 2, no. 2–3, pp. 181–184, Jan. 1994, doi: 10.1002/apj.5500020210. 16. A. Fredenslund, R. L. Jones, and J. M. Prausnitz, ‘Group‐contribution estimation of activity coefficients in nonideal liquid mixtures’, AIChE J., vol. 21, no. 6, pp. 1086–1099, Nov. 1975, doi: 10.1002/aic.690210607.