Simulation of Ethyl Tert-Butyl Ether Production from Tert-Butyl Alcohol and Ethanol in Reactive Distillation

https://doi.org/10.22146/ajche.50159

Suttichai Assabumrungrat(1*), Varong Pavarajarn(2), Darin Wongwattanasate(3), Piyasan Praserthdam(4)

(1) Center of Excellence in Catalysis and Catalytic Reaction Engineering Department of Chemical Engineering, Faculty of Engineering Chulalongkorn University Bangkok 10330 THAILAND
(2) Center of Excellence in Catalysis and Catalytic Reaction Engineering Department of Chemical Engineering, Faculty of Engineering Chulalongkorn University Bangkok 10330 THAILAND
(3) Center of Excellence in Catalysis and Catalytic Reaction Engineering Department of Chemical Engineering, Faculty of Engineering Chulalongkorn University Bangkok 10330 THAILAND
(4) Center of Excellence in Catalysis and Catalytic Reaction Engineering Department of Chemical Engineering, Faculty of Engineering Chulalongkorn University Bangkok 10330 THAILAND
(*) Corresponding Author

Abstract


Reactive distillation was applied for the synthesis of ethyl tert-butyl ether (ETBE) from a liquid-phase reaction between tert-butyl alcohol (TBA) and ethanol (EtOH) catalyzed by commercial ~-zeolite catalyst with Si/AI ratio of 55. The major side reaction of this system was the dehydration of TBA to isobutene (lB). From the present researchers' previous work, it was found that B-zeolite was superior to commercial Amberlyst-15 catalyst in reaction selectivity. The kinetic parameters for the reactions, which were determined using a semibatch reactor operated at various temperatures, were used for simulation in Aspen Plus TN program. Various operating parameters, such as heat duty, molar ratio of Hz0: EtOH, and refluxratio, were investigatedfor their effectson reactive distillation performance. Keywords: ,B-zeolite,ethyl tert-butyl ether (ETBE) synthesis, and reactive distillation.

Keywords


B-zeolite, ethyl tert-butyl ether (ETBE) synthesis, and reactive distillation

Full Text:

PDF


References

  1. Assabumrungrat, S., Kiatkittipong, W., Srivitoon, N., Praserthdam, P., Phatanasri, S., and Goto, S. (2002). "Kinetics of liquid-phase synthesis of ethyl tert-butyl ether from tert-butyl alcohol and ethanol catalyzed by supported ß-zeolite,” Int. J. Chem. Kinetics, 34, 292-299.
  2. Bisowarno, B. H., and Tade, M. O. (2000). "Dynamic simulation of startup in ethyl tert-butyl ether reactive distillation with input multiplicity," Ind. Eng. Chem. Res., 39, 1950–1954.

  3. Cunill, F., Vila, M., Izquierdo, J. F., Iborra, M., and Tejero, J. (1993). “Effect of water-presence on methyl tert-butyl ether and ethyl tert-butyl ether liquid phase syntheses," Ind. Eng. Chem. Res., 32, 564-569. 

  4. Matoug, M., Quitain, A., Takahashi, K., and Goto, S. (1996). "Reactive distillation for synthesizing ethyl tert-butyl ether from low-grade alcohol catalyzed by potassium hydrogen sulfate," Ind. Eng. Chem. Res., 35, 982-984.

  5. Norris, J. F., and Rigby, G. W. (1953). "The reactivity of atoms and groups in organic compounds," J. Am. Chem. Soc., 54, 2088-2100. 

  6. Quitain, A., Itoh, H., and Goto, S. (1999a). “Reactive distillation for synthesizing ethyl tert-butyl ether from bioethanol," J. Chem. Eng. Japan, 32, 280-287.

  7. Quitain, A., Itoh, H., and Goto, S. (1999). "Industrial-scale simulation of proposed process for synthesizing ethyl tert-butyl ether from bioethanol," J. Chem. Eng. Japan, 32, 539-543.

  8. Sneesby, M. G., Tade, M. O., and Smith, T. N. (1997). "ETBE synthesis via reactive distillation--1. Steady-stage simulation and design aspects," Ind. Eng. Chem. Res., 36, 1855-1869. 

  9. Sneesby, M. G., Tade, M. O., and Smith, T. N. (1999). "Two-point control of a reactive distillation column for composition and conversion," J. of Process Contr., 9, 19-31.

  10. Tade, M. O., and Tian, Y. C. (2000). "Conversion inference for ETBE reactive distillation," Sep. Puri. Tech., 19, 85-91.

  11. Yang, B., and Goto, S. (1997). “Pervaporation with reactive distillation for the production of ethyl tert-butyl ether," Sep. Sci. Tech., 32, 971-981.

  12. Yang, B., Yang, S., and Yao, R. (2000). "Synthesis of ethyl tert-butyl ether from tert-butyl alcohol and ethanol on strong acid cation-exchange resins," React, Funct, Polym., 44, 167–175.

  13. Yin, X., Yang, B., and Goto, S. (1995). "Kinetics of liquid-phase synthesis of ethyl tert butyl ether from tert-butyl alcohol and ethanol catalyzed by ion-exchange resin and heteropoly acid," Int. J. Chem. Kinetics, 27, 1065-1074. 



DOI: https://doi.org/10.22146/ajche.50159

Article Metrics

Abstract views : 25 | views : 0

Refbacks

  • There are currently no refbacks.