Oxidation of propane over ammonium-transition metal mixed keggin phosphomolybdate salts |
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Authors: | T. Mazari C. Roch. Marchal S. Hocine N. Salhi C. Rabia |
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Affiliation: | [1]Laboratoire de Chimie du Gaz Naturel, Faculte de Chimie, Universite des Sciences et de la Technologie Houari Boumediene, USTHB BP32, El-Alia, Bab-Ezzouar, Alger, AIgerie [2]ILV-UMR 8180 CNRS, Universite de Versailles -St Quentin-en-Yvelines,Batiment Lavoisier, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France |
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Abstract: | Mixed ammonium-transition metal salts with formula of (NH4)xMyHzPMo12O40 (M= Ni2+, Co2+ or Fe 3+) denoted as MPMo12 have beeninvestigated for the oxidation of propane, with molecular oxygen, at temperature range between 380 ◦C and 420 ◦C after in-situ pre-treatmentperformed at two heating rate of 5 or 9 ◦C/min. They were characterized by BET method, XRD, UV-Vis and IR techniques. The catalysts werefound to be active in the propane oxidation and selective to propene or acrolein, in particular for samples pre-treated with the heating rate of9 ◦C/min. FePMo12 was found the more active catalyst for propene (17.2% yield) with minimal over deep oxidation (0.3% yield in COx). |
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Keywords: | phosphomolybdate ammonium keggin propane oxidation propene acrolein |
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