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Book Oxidation of Carbon Monoxide on Palladium Model Catalysts

Download or read book Oxidation of Carbon Monoxide on Palladium Model Catalysts written by Frederick H. Rumpf and published by . This book was released on 1987 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Catalytic Oxidation of Carbon Monoxide on Palladium

Download or read book Catalytic Oxidation of Carbon Monoxide on Palladium written by Steven Michael Landry and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Low temperature Catalytic Oxidation of Carbon Monoxide Over Palladium Metal Hydrous Palladium Oxides and Anhydrous Palladium Oxides

Download or read book Low temperature Catalytic Oxidation of Carbon Monoxide Over Palladium Metal Hydrous Palladium Oxides and Anhydrous Palladium Oxides written by Seung-Hoon Oh and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Stoichiometic oxygen concentration plays an important role during CO oxidation over palladium metal. For 1.0 % CO at 200 °C, Pd metal exhibits 100 % CO conversion with 0.51 % O2 in the feedstream. However, the same Pd powder exhibits only 45 % CO conversion with 0.47 % O2. CO oxidation catalytic enhancements from 5 to 100 % are found for a short time period over the temperature range of 185 to 200 °C. During feedstream bypass, the bicarbonate species dissociate into a hydroxyl group and a carbon dioxide molecule. XPS data indicate that a carbon C 1s peak due to bicarbonate is present during the bypass step. Hydrous palladium oxide (PdO. H2O) exhibits 100 % CO conversion even at room temperature. Existence of lattice water and its reaction with CO/O2 are believed to be the reason for the excellent CO oxidation activity.

Book Catalytic Oxidation of Carbon Monoxide at Low Concentrations

Download or read book Catalytic Oxidation of Carbon Monoxide at Low Concentrations written by Avinash G. Mulay and published by . This book was released on 1961 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Catalytic Oxidation of Carbon Monoxide at High Humidity and Low Temperature

Download or read book Catalytic Oxidation of Carbon Monoxide at High Humidity and Low Temperature written by and published by . This book was released on 1980 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two catalysts (hopcalite and palladium) were tested for efficiency in promoting oxidation of carbon monoxide (CO). The catalysts were tested using air at 21000 per h to the minus 1 space velocity, 50% relative humidity, and various temperatures. The air was contaminated with approximately 100 ppm each of methane, dichlorofluoromethane (R-12), and dichlorotetrafluoroethane (R-114) in addition to approximately 5000 ppm of CO. Hopcalite was further tested under similar conditions except that the air was at 100% relative humidity. There is little difference in the efficiencies of hopcalite and palladium catalyst for oxidizing CO at 57 to 62 deg C; both are low. At 119 to 122 deg C, the palladium is more efficient than hopcalite. The simultaneous presence of three other contaminants decreased the efficiency of both hopcalite and palladium for oxidizing CO. With the hopcalite preheated to about 119 deg C, the heat of reaction is not sufficient to maintain the oxidation of CO under the conditions tested. The minimum temperature at which hopcalite and palladium catalysts will completely oxidize CO under the conditions tested is in the 70 to 100 deg C range.

Book Kinetics of Catalytic Reactions

Download or read book Kinetics of Catalytic Reactions written by M. Albert Vannice and published by Springer Science & Business Media. This book was released on 2006-04-09 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes how to conduct kinetic experiments with heterogeneous catalysts, analyze and model the results, and characterize the catalysts Detailed analysis of mass transfer in liquid phase reactions involving porous catalysts. Important to the fine chemicals and pharmaceutical industries so it has appeal to many researchers in both industry and academia (chemical engineering and chemistry departments

Book The Oxidation of Carbon Monoxide on Nanoassembled Model Catalysts

Download or read book The Oxidation of Carbon Monoxide on Nanoassembled Model Catalysts written by Antonio Sanchez and published by . This book was released on 2000 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Oxidation of Carbon Monoxide on Supported Palladium

Download or read book Oxidation of Carbon Monoxide on Supported Palladium written by Laurent Dany Kieken and published by . This book was released on 1992 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Oxidation of Carbon Monoxide on Nanoassembled Model Catalysts

Download or read book The Oxidation of Carbon Monoxide on Nanoassembled Model Catalysts written by Antonio Sanchez (biochimiste.) and published by . This book was released on 2000 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Catalysts for the Oxidation of Carbon Monoxide at Low Temperatures

Download or read book Catalysts for the Oxidation of Carbon Monoxide at Low Temperatures written by and published by . This book was released on 1979 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four catalysts (hopcalite, Whetlerite, a supported palladium, and a supported platinum) were tested for efficiency in promoting the oxidation of carbon monoxide (CO). At room temperature and 50% RH, hopcalite has no catalytic capability and platinum has practically none. At room temperature and 15% RH, hopcalite is superior to platinum in catalyzing the oxidation of CO. Hopcalite is more efficient than either of the other three catalysts in the 52 to 66 C (125 to 150 F) temperature range at both humidities. Platinum and palladium are superior to both hopcalite and Whetlerite at both humidities in the 113 to 135 C (235 to 275 F) temperature range. Higher humidity decreases the CO-oxidizing capabilities of hopcalite and Whetlerite but does not do so for platinum and palladium. Whetlerite is in the lower-performing group of catalysts under all except one of the different conditions used in the tests. For the hopcalite, palladium, and platinum catalysts there is a temperature below 135 C (275 F) and above 68 C (155 F) at which CO can be oxidized efficiently.

Book Characterization of Porous Solids and Powders Surface Area Pore Size and Density

Download or read book Characterization of Porous Solids and Powders Surface Area Pore Size and Density written by S. Lowell and published by Springer Science & Business Media. This book was released on 2012-09-14 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth of interest in newly developed porous materials has prompted the writing of this book for those who have the need to make meaningful measurements without the benefit of years of experience. One might consider this new book as the 4th edition of "Powder Surface Area and Porosity" (Lowell & Shields), but for this new edition we set out to incorporate recent developments in the understanding of fluids in many types of porous materials, not just powders. Based on this, we felt that it would be prudent to change the title to "Characterization of Porous Solids and Powders: Surface Area, Porosity and Density". This book gives a unique overview of principles associated with the characterization of solids with regard to their surface area, pore size, pore volume and density. It covers methods based on gas adsorption (both physi and chemisorption), mercury porosimetry and pycnometry. Not only are the theoretical and experimental basics of these techniques presented in detail but also, in light of the tremendous progress made in recent years in materials science and nanotechnology, the most recent developments are described. In particular, the application of classical theories and methods for pore size analysis are contrasted with the most advanced microscopic theories based on statistical mechanics (e.g. Density Functional Theory and Molecular Simulation). The characterization of heterogeneous catalysts is more prominent than in earlier editions; the sections on mercury porosimetry and particularly chemisorption have been updated and greatly expanded.