01689nas a2200145   4500008004100000245009400041210006900135260000800204300001200212490000800224520115500232100002201387700002101409856011301430       2018                        eng d00aEffect of support on the catalytic activity of WOx promoted Pt in green diesel production0 aEffect of support on the catalytic activity of WOx promoted Pt i  cMAY  a125-1340 v4513 aPlatinum and WOx-promoted platinum supported on SiO2-Al2O3, Al2O3, AlPO4-5 and ZrO2 catalysts were prepared by wet impregnation method and investigated for deoxygenation of oleic acid (OA, a representative fatty acid) producing diesel-range hydrocarbons. Support and WOx influenced the textural, electronic and catalytic properties of Pt. WOx promoted the deoxygenation activity through hydrodeoxygenation pathway. Structure-activity correlations revealed that metallicity of Pt and acidity of the catalyst are crucial in determining the catalytic performance and product selectivity. Among the catalysts tested, 4Pt-8WO(x)/ZrO2, having adequate metal dispersion and electron rich Pt (desired for hydrogen splitting), reduced WOx species (W5+;-desired for OA activation) and less amount of strong acid sites (desired to avoid hydrocracking) showed highest catalytic deoxygenation performance (OA conversion = 100 mol% and C18 hydrocarbon selectivity = 89.4% at 260 degrees C and 20 bar H-2 pressure). The study reveals that support plays a crucial role in determining the catalytic performance of platinum. (C) 2017 Elsevier B.V. All rights reserved.1 aJanampelli, Sagar1 aDarbha, Srinivas  uhttps://library.ncl.res.in/content/effect-support-catalytic-activity-wox-promoted-pt-green-diesel-production