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Selective Hydrogenation Of Acetylene Over Pd Au And Pdau Supported Nanoparticles
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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 Catalytic and Process Study of the Selective Hydrogenation of Acetylene and 1,3-Butadiene by : Ruijun Hou
Download or read book Catalytic and Process Study of the Selective Hydrogenation of Acetylene and 1,3-Butadiene written by Ruijun Hou and published by Springer. This book was released on 2017-01-05 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis offers novel methods for catalyst and process design for the selective hydrogenation of acetylene and 1,3-butadiene. The author predicts the properties of supported Pd–Ni bimetallic catalysts using density functional theory (DFT) calculations and temperature-programmed desorption (TPD). The excellent correlation between model surfaces and supported catalysts demonstrates the feasibility of designing effective bimetallic catalysts for selective hydrogenation reactions. The author also proposes a method for designing non-precious metal catalysts to replace precious metals. She modifies the process of selective hydrogenation of acetylene by coupling the selective adsorption to the selective hydrogenation in the liquid phase, as a result of which the ethylene selectivity is greatly improved and heat transfer is greatly enhanced. Lastly, by analyzing the mechanism of liquid-phase hydrogenation, the author proposes a multi-stage slurry bed reactor for industrial applications.“/p>
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 Surface Chemistry and Catalysis by : Albert F. Carley
Download or read book Surface Chemistry and Catalysis written by Albert F. Carley and published by Springer Science & Business Media. This book was released on 2002-09-30 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exciting results are still emerging from the many research groups working in this fertile area and the book is an excellent stimulus to researchers at the start of the 21st century."--BOOK JACKET.
Book Synopsis Catalyst Deactivation in the Selective Hydrogenation of Acetylene Over Supported Pd Catalyst by : Walter Plante
Download or read book Catalyst Deactivation in the Selective Hydrogenation of Acetylene Over Supported Pd Catalyst written by Walter Plante and published by . This book was released on 1987 with total page 268 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 Regio and Chemo Selective Hydrogenation by Palladium Nanoparticles Embedded in Polyelectrolyte Films by : Somnath Bhattacharjee
Download or read book Regio and Chemo Selective Hydrogenation by Palladium Nanoparticles Embedded in Polyelectrolyte Films written by Somnath Bhattacharjee and published by . This book was released on 2008 with total page 342 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 Acetylene Over Palladium on Ionic Liquid Loaded Silica Support by : Ting Zhou
Download or read book Selective Hydrogenation of Acetylene Over Palladium on Ionic Liquid Loaded Silica Support written by Ting Zhou and published by . This book was released on 2012 with total page 164 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 Noble Metal-Metal Oxide Hybrid Nanoparticles by : Satyabrata Mohapatra
Download or read book Noble Metal-Metal Oxide Hybrid Nanoparticles written by Satyabrata Mohapatra and published by Elsevier. This book was released on 2018-10-11 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: Noble Metal-Metal Oxide Hybrid Nanoparticles: Fundamentals and Applications sets out concepts and emerging applications of hybrid nanoparticles in biomedicine, antibacterial, energy storage and electronics. The hybridization of noble metals (Gold, Silver, Palladium and Platinum) with metal-oxide nanoparticles exhibits superior features when compared to individual nanoparticles. In some cases, metal oxides act as semiconductors, such as nano zinc oxide or titanium oxide nanoparticles, where their hybridization with silver nanoparticles, enhanced significantly their photocatalytic efficiency. The book highlights how such nanomaterials are used for practical applications. Examines the properties of metal-metal oxide hybrid nanoparticles that make them so adaptable Explores the mechanisms by which nanoparticles interact with each other, showing how these can be exploited for practical applications Shows how metal oxide hybrid nanomaterials are used in a range of industry sectors, including energy, the environment and healthcare
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 Strong Metal-support Interactions by : R. T. K. Baker
Download or read book Strong Metal-support Interactions written by R. T. K. Baker and published by . This book was released on 1986 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Theoretical Insight Into the Selective Hydrogenation of Acetylene on Pd-based Catalysts by : Wenbo Xie
Download or read book Theoretical Insight Into the Selective Hydrogenation of Acetylene on Pd-based Catalysts written by Wenbo Xie and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis XAFS Techniques for Catalysts, Nanomaterials, and Surfaces by : Yasuhiro Iwasawa
Download or read book XAFS Techniques for Catalysts, Nanomaterials, and Surfaces written by Yasuhiro Iwasawa and published by Springer. This book was released on 2016-10-19 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive, theoretical, practical, and thorough guide to XAFS spectroscopy. The book addresses XAFS fundamentals such as experiments, theory and data analysis, advanced XAFS methods such as operando XAFS, time-resolved XAFS, spatially resolved XAFS, total-reflection XAFS, high energy resolution XAFS, and practical applications to a variety of catalysts, nanomaterials and surfaces. This book is accessible to a broad audience in academia and industry, and will be a useful guide for researchers entering the subject and graduate students in a wide variety of disciplines.
Book Synopsis Investigation of Pd-ceria Catalysts for Selective Hydrogenation of Acetylene in Ethylene by : Wentao Xie
Download or read book Investigation of Pd-ceria Catalysts for Selective Hydrogenation of Acetylene in Ethylene written by Wentao Xie and published by . This book was released on 2017 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
