Comparative study of IPTBE synthesis on HZSM-5 and ion-exchange resin catalysts |
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| Authors: | J. Tejero, E. Creus, M. Iborra, F. Cunill, J. F. Izquierdo,C. Fit |
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| Affiliation: | Chemical Engineering Department, University of Barcelona, Martí i Franquès 1, E-08028 Barcelona, Spain |
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| Abstract: | The title ether was synthesized using a batch reactor at 70–90°C and 1.6 MPa. The ion-exchange resins Amberlyst 15, Amberlyst 35 and Purolite CT275, and HZSM-5 zeolites with a SiO2/Al2O3 ratio between 28 and 120 were used as catalysts. IPTBE synthesis rapidly reaches chemical equilibrium in the presence of resins with selectivities of 95–97%, diisobutene being the main byproduct. HZSM-5 zeolites are less active and selective than resin catalysts. Resins, especially Amberlyst 35, are suitable catalysts for obtaining IPTBE industrially. |
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| Keywords: | IPTBE Isopropanol Isobutene Etherification Amberlyst 15 Amberlyst 35 Purolite CT275 HZSM-5 |
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