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Effect Of Alumina Grinding On The Properties Of Alumina Supported Palladium Catalysts In Selective Hydrogenation Of Acetylene
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Book Synopsis Effect of Alumina Grinding on the Properties of Alumina Supported Palladium Catalysts in Selective Hydrogenation of Acetylene by :
Download or read book Effect of Alumina Grinding on the Properties of Alumina Supported Palladium Catalysts in Selective Hydrogenation of Acetylene written by and published by . This book was released on 2008 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, the effects of alumina grinding and mixed oxides (ZnO-Al2O3 and NiO-Al2O3) grinding with various Zn/Al and Ni/Al molar ratios (0.1 and 0.5) prepared by an attrition ball mill on catalytic performance of alumina supported Pd catalysts for selective hydrogenation of acetylene were investigated. It was found that catalytic performances of the Pd catalyst supported on Al2O3 milled for 12 h were superior compared to those of Pd-supported on the unmilled Al2O3. However, all the catalysts prepared from milled mixed oxides presented lower acetylene conversion and ethylene selectivity than that of the catalyst prepared from alumina milled for 12 h. From X-ray diffraction, it was suggested that varying milling time directly affected the crystallite size, surface area and acidity of alumina supports. As revealed by CO chemisorption, milling of Al2O3 supports could increase metal active sites of Pd/Al2O3 catalysts without change in the interaction between Pd and the alumina support so that the catalysts exhibited higher acetylene activity and ethylene selectivity. Moreover, increasing of acidity affected coke formation on the catalysts.
Book Synopsis The Selective Hydrogenation of Nitrobenzene at Elevated Temperatures Over Alumina-supported Palladium Catalysts by : James Warren Campbell
Download or read book The Selective Hydrogenation of Nitrobenzene at Elevated Temperatures Over Alumina-supported Palladium Catalysts written by James Warren Campbell and published by . This book was released on 2019 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Selective Hydrogenation of Acetylene Over Pd and Pd-Cu on Alumina Catalysts by : Stephen Claude LeViness
Download or read book The Selective Hydrogenation of Acetylene Over Pd and Pd-Cu on Alumina Catalysts written by Stephen Claude LeViness and published by . This book was released on 1984 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selective Hydrogenation of Trace Acetylene in Ethylene Over Pd-Cu Alumina Catalysts by : Vinayan Nair
Download or read book Selective Hydrogenation of Trace Acetylene in Ethylene Over Pd-Cu Alumina Catalysts written by Vinayan Nair and published by . This book was released on 1983 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Alumina Supports on the Properties of Supported Nickel Catalysts by : Shih-Li Chen
Download or read book The Effect of Alumina Supports on the Properties of Supported Nickel Catalysts written by Shih-Li Chen and published by . This book was released on 1990 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inelastic Electron Tunneling Spectroscopic Study of Acetylene Chemisorbed on Alumina Supported Palladium Particles by : A. Bayman
Download or read book Inelastic Electron Tunneling Spectroscopic Study of Acetylene Chemisorbed on Alumina Supported Palladium Particles written by A. Bayman and published by . This book was released on 1983 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inelastic electron tunneling spectroscopy was used to study the adsorption of acetylene on palladium particles supported by alumina. Low peak intensities in the spectra complicated the analysis of the multiple species present. Nevertheless, some species could be tentatively identified including weakly bonded acetylene, two types of strongly bonded acetylenic species and two other further rehybridized species. The prospect for the future application of tunneling spectroscopy to the study of other hydrocarbons adsorbed on model supported metal catalysts is discussed. (Author).
Book Synopsis Promotion Effects of Nonthermal Argon Plasma Treatment and Ionic Liquids on Silica-supported Palladium Catalysts for the Selective Hydrogenation of Acetylene to Ethylene by : Kristine Jang
Download or read book Promotion Effects of Nonthermal Argon Plasma Treatment and Ionic Liquids on Silica-supported Palladium Catalysts for the Selective Hydrogenation of Acetylene to Ethylene written by Kristine Jang and published by . This book was released on 2013 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Ceria Supported Palladium Catalysts for Selective Hydrogenation of Acetylene in Ethylene by : Junyi He
Download or read book Investigation of Ceria Supported Palladium Catalysts for Selective Hydrogenation of Acetylene in Ethylene written by Junyi He and published by . This book was released on 2017 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structure/activity Correlations in Alumina Supported Palladium Catalysts by : Tim Lear
Download or read book Structure/activity Correlations in Alumina Supported Palladium Catalysts written by Tim Lear and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selective Hydrogenation of Acetylene on Palladium Catalysts Supported on Solvothermal-derived Titanium Dioxide by :
Download or read book Selective Hydrogenation of Acetylene on Palladium Catalysts Supported on Solvothermal-derived Titanium Dioxide written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selective Hydrogenation of Acetylene Over Modified Palladium Catalysts by : Arash Mirjalili
Download or read book Selective Hydrogenation of Acetylene Over Modified Palladium Catalysts written by Arash Mirjalili and published by . This book was released on 2016 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selective Hydrogenation of Acetylene in the Presence of Ethylene Over Supported Pd and Pd-Mg Catalysts by : Ying Ji
Download or read book Selective Hydrogenation of Acetylene in the Presence of Ethylene Over Supported Pd and Pd-Mg Catalysts written by Ying Ji and published by . This book was released on 2009 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selective Hydrogenation of Acetylene Over Pd, Au, and PdAu Supported Nanoparticles by : Michael Walker
Download or read book Selective Hydrogenation of Acetylene Over Pd, Au, and PdAu Supported Nanoparticles written by Michael Walker and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The removal of trace amounts of acetylene in ethylene streams is a high-volume industrial process that must possess high selectivity of alkyne hydrogenation over hydrogenation of alkenes. Current technology uses metallic nanoparticles, typically palladium or platinum, for acetylene removal. However, problems arise due to the deactivation of the catalysts at high temperatures as well as low selectivities at high conversions. Pore expanded MCM-41 is synthesized via a two-step strategy in which MCM-41 was prepared via cetyltrimethylammonium bromide (CTMABr) followed by the hydrothermal treatment with N,N-dimethyldecylamine (DMDA). This material was washed with ethanol to remove DMDA, or calcined to remove both surfactants. PE-MCM-41 based materials were impregnated with palladium, gold, and palladium-gold nanoparticles. The removal of DMDA had an effect on both the conversion and selectivity, in which they were found to drop significantly. However, by using the bimetallic PdAu catalysts, higher selectivity could be achieved due to increased electron density.
Book Synopsis Metal-Support and Metal-Additive Effects in Catalysis by : B. Imelik
Download or read book Metal-Support and Metal-Additive Effects in Catalysis written by B. Imelik and published by Elsevier. This book was released on 2000-04-01 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-Support and Metal-Additive Effects in Catalysis, Volume 11, documents the proceedings of an international symposium organized by the Institut de Recherches sur la Catalyse - CNRS – Villeurbanne and sponsored by the Centre National de la Recherche Scientifique, Ecully (Lyon), September 14-16, 1982. This volume contains 40 manuscripts that cover a wide range of topics. Among these are studies of metal-support interactions involving Pt/Al2O3, Pt/TiO2,Fe/TiO2, Pt/MgO, Rh /Al2O3, and Pt/CeO2 catalysts. There are also separate chapters dealing with ethane, n-butane, and cyclohexane hydrogenolysis; skeletal isomerization of methylpentanes; the catalytic activity and selectivity of noble metals; CO hydrogenation over supported on SiO2, Al2O3, Ti O2,and Zr O2 nickel catalysts; and the role of promoters in Pd catalysts for methanol synthesis. Subsequent chapters cover the poisoning of platinum and nickel by sulfur; C6H6 and CO chemisorption on Pt78Ni22 (111) single crystal alloy; the surface composition of industrial ammonia synthesis catalysts; and the role of alkalis and electronegative promoters on Fe and Ni catalysts.
Book Synopsis A Study on the Effects of Additives on Selective Hydrogenation of Trace Acetylene Over Palladium Catalysts by : Yeung Ho Park
Download or read book A Study on the Effects of Additives on Selective Hydrogenation of Trace Acetylene Over Palladium Catalysts written by Yeung Ho Park and published by . This book was released on 1991 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Catalytic Combustion of Methane Over Alumina Supported Palladium by : Maxim R. Lyubovsky
Download or read book Catalytic Combustion of Methane Over Alumina Supported Palladium written by Maxim R. Lyubovsky and published by . This book was released on 1999 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
