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Synthesis of Some Baria-Modified γ-Al2O3 for Methanol Dehydration to Dimethyl Ether

Author Affiliations

  • 1Chemical Engineering Department, Amirkabir University of Technology, Hafez Avenue, Tehran 15914, IRAN

Res.J.chem.sci., Volume 3, Issue (1), Pages 57-62, January,18 (2013)

Abstract

In the present study a kinetic model for the catalytic dehydration of methanol to dimethyl ether, using some baria-modified gamma alumina as the reaction catalyst have been presented. Three catalyst samples were prepared consisting of Ba2+ impregnated on γ-Al2O3, using barium nitrate solution. It was noted that the Ba2+ content of the catalysts had a high impact on the activity of the latter. The operating temperature range was 260-290oC and the pressure was 1 bar. Catalysts' activity and kinetic measurements were carried out using a catalytic fixed bed micro- reactor.

References

  1. Hansen J., Voss B., Joensen F. and Siguroavdottir I., Largescale manufacture of dimethyl ether a new alternative dieselfuel from natural gas, in: SAE Technical Paper Series,International Congress and Exposition, Detroit, Michigan,February 27-March 2, (1995)
  2. Kasai M. and Sohrabi M., Kinetic study on methanoldehydration to dimethyl ether applying Clinoptilolitezeolite as the reaction catalyst, J. Mex. Chem. Soc., 53,233-238 (2009)
  3. Fleisch T., McCarthy C., Basu A., Udovich C., CharbonneauP., Slodowske W., Mikkelsen S. and McCan-dlessJ.M., A New Clean Diesel Technology: Demonstration ofULEV Emissions on a Navistar Diesel Engine Fueled withDimethyl Ether (1995)
  4. Sonawane Vilas Y., Mechanistic study of chromium (VI)catalyzed oxidation of benzyl alcohol by polymer supportedchromic acid, Res. J. Chem. Sci., 1(1), 25-30 (2011)
  5. Kumar V., Mamgain R. and Singh N., Synthesis ofsubstituted imidazoles via a multi-component condensationcatalyzed by p-toluene sulfonic acid, PTSA,Res.J.Chem.Sci., 2(4), 18-23 (2012)
  6. Kannan C., Devi M.R., Muthuraja K., Esaivani K. andSudalai Vadivoo V., Green catalytic polymerization ofstyrene in the vapor phase over alumina, Res.J.Chem. Sci.,2(7), 27-35 (2012)
  7. Deepshikha and Basu T., The Role of Structure DirectingAgents on Chemical Switching Properties ofNanostructured Conducting Polyaniline (NSPANI),Res.J.Chem.Sci., 1(6), 20-29 (2011)
  8. Deshpande D.P., Urunkar Y.D and Thakare P.D.,Production of biodiesel from castor oil using acid and basecatalysts, Res.J.Chem.Sci., 2(8), 51-56 (2012)
  9. Deshpande D.P., Warfade V.V., Amaley S.H. andLokhande D.D., Petro-Chemical Feed stock from PlasticWaste, Res.J.Recent Sci., 1(3), 63-67 (2012)
  10. Tandel R.C., Jayvirsinh G. and Patel Nilesh K., Synthesisand study of main chain chalcone polymers exhibitingnematic phases, Res.J.Recent.Sci., 1, 122-127 (2012)
  11. Anju S.G., Jyothi K.P., Sndhu J., Suguna Y. andYesodharan E.P., Ultrasound assisted semiconductor mediated catalytic degradation of organic pollutants inwater: comparative efficacy of ZnO, TiO2 and ZnO-TiO2,Res.J.Recent Sci., 1, 191-201 (2012)
  12. Femina P. and Sanjay P., Carbon monoxide on LaCoO3perovskite type catalysts prepared by reactive grinding,Res.J.Recent.Sci., 1, 152-159 (2012)
  13. Femina P. and Sanjay P., LaCoO3 perovskite catalysts forthe environmental application of auto motive CO oxidation,Res.J.Recent.Sci., 1, 178-184 (2012) with dimethyl ether, inSAE Technical Paper Series, Interational Congress &Exposition, Detroit, Michigan, February 27-March 2,(1995)
  14. Nle Z., Liu H., Ying W. and Fang D., Intrinsic kinetics ofdimethyl ether synthesis from syngas, J. Nat. Gas Chem.,14, 22-28 (2005)
  15. Woodhouse J.C, US Patent 2, 014, 408 (1935)
  16. Topp-Jorgensen J., US Patent 4, 536, 485 (1985)
  17. Vishwanathan V., Jun K., Kim J. and Roh H.J., Vapourphase dehydration of crude methanol to dimethyl ether overNa-modified H-ZSM-5 catalysts, App. Catal. A, 276, 251-255 (2004)
  18. Knözinger, Kochloefl K. and Meye W., Kinetics of thebiomolecular ether formation from alcohols over alumina,J. Catal., 28, 69-75 (1973)
  19. Okada K. and Hattori A., Effect of divalent cation additiveson the ?-Al2O3-to-a-Al2O3 phase transition, J. Am. Ceram.Soc., 83, 928-932 (2000)
  20. Okada K., Hattori A., Kameshima Y. and Yasumori A.,Effect of monovalent cation additives on the ?-Al2O3-to-a -Al2O3 phase transition, J. Am. Ceram. Soc., 83, 1233-1236(2000)
  21. Saito Y., Takei T., Hayashi S., Yasumori A. and Okada K.,Effects of amorphous and crystalline SiO2 additives on ?-Al2O3-to-a-Al2O3phase transitions, J.Am. Ceram. Soc., 81,2197-2200 (1998)
  22. Bercic G. and Levec J., Intrinsic and global reaction rate ofmethanol dehydration over ?-Al2O3 pellets, Ind. Eng. Chem.Res. 3, 1035-1040 (1992)
  23. Royaee S.J., Falamaki C. and Sohrabi M., A new LangmuirHinshelwood mechanism for the methanol todimethyletherreaction over clinoptilolite zeolite catalyst, J.Applied Catalysis A: General, 338, 114-120 (2008)
  24. Okada A., Yamaguchi T. and Fujita T., Cation dopanteffect on phase transformation and microstructuralevolution in M+2- substituted ?-alumina powders, J. MaterSci., 43, 2713-2720 (2008)
  25. Bandiera J. and Naccache C., Kinetics ofmethanoldehydration on dealuminated H-mordenite: Modelwithacid and basic active centers, J. Appl. Catal., 69, 139-148 (1991)
  26. Bercic G. and Levec J., Catalytic dehydration of methanolto dimethyl ether. Kinetic investigation and reactorsimulation, Ind. Eng. Chem. Res., 32, 2478-2484 (1993)
  27. Schmitz G., Deshydration du methanol sur silice- alumina,Chem. Phys., 75, 650-655 (1978)
  28. Gates B.C. and Johanson L.N., Metal clusters in catalysis,AIChE J., 34, 173-174 (1998)
  29. Hadipour A. and Sohrabi M., Synthesis of somebifunctional catalysts and determination of kineticparameters for direct conversion of syngas to dimethylether, J. Chem. Eng., 137, 294-301 (2008)