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Production of Di-isopropyl ether (DIPE) over 12-Molybdophosphoric Acid Supported on ZrO2. An Alternative Octane Enhancer for Lead-free Petrol

Published online by Cambridge University Press:  01 February 2011

J. G. Hernández-Cortez ,
E. López-Salinas ,
Ma. Manríquez  and
M. Picquart
J. G. Hernández-Cortez
Affiliation:
Instituto Mexicano del Petróleo. Programa Ingeniería Molecular. Eje Central L. Cárdenas 152, 07730, México D.F., México. Email: [email protected], [email protected]
E. López-Salinas
Affiliation:
Instituto Mexicano del Petróleo. Programa Ingeniería Molecular. Eje Central L. Cárdenas 152, 07730, México D.F., México. Email: [email protected], [email protected]
Ma. Manríquez
Affiliation:
Instituto Politécnico Nacional. Departamento de Ingeniería Química Industrial, ESIQIE, Av.IPN s/n, 07730 México D.F., México.
M. Picquart
Affiliation:
Universidad Autónoma Metropolitana Iztapalapa, Depto. Física, 09340 México D. F., México.
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Abstract

Solid acid catalysts of 12-Molybdophosphoric acid (MoP) supported on hydrous zirconia have been synthesized using impregnation method. Structural transformations due to thermal effects have been studied by different techniques including X-Ray diffraction, thermogravimetric analysis (TGA), infrared absorption (DRIFT), Raman spectroscopy and 31P MAS NMR. These techniques showed that the heteropolyacid present undegraded Keggin structure. The transformation of heteropoly anion of pure HPMo to MoO3 begins at a temperature lower than that for its ZrO2-supported counterpart. The activity of ZrO2-supported (MoP-Z) catalysts in the 2-propanol decomposition presents a high selectivity to the formation of DIPE and propene, this selectivity is related with acid sites determined by thermodesorption (TPD) of NH3.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1279: New Catalytic Materials , 2010 , 46
Copyright
Copyright © Materials Research Society 2010

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