Download or read book Oxygen Interchange on Vanadium Oxide Catalysts written by Richard F. Mann and published by . This book was released on 1970 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is often difficult to compare results for heterogeneous reactions as the data reported in the literature are presented in various ways. A common example of this difficulty is the reporting of oxygen adsorption rate constants in various units. In the paper a number of studies involving oxygen interchange with vanadium pentoxide or vanadium pentoxide - potassium sulfate promoted catalysts are re-examined. Where possible, a first-order oxygen adsorption rate constant is evaluated from published data on rates of oxidation and rates of isotopic exchange, and expressed in units of 1/h-sq m of catalyst surface. The rate constants so evaluated and compared as to catalyst composition, temperature, and activation energy show reasonable agreement, even though a variety of catalysts, processes, and techniques are involved. (Author).
Download or read book Oxygen exchange from O2 C18O2 with surfaces of vanadium pentoxide and alkali metal promoted vanadium pentoxide catalysts written by Robert Anderson Ross and published by . This book was released on 1978 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gaseous Vanadium Vanadium Oxide and Hydroxide Clusters written by Sandra Feyel and published by Logos Verlag Berlin GmbH. This book was released on 2008 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work explores the reactivities of gaseous vanadium, vanadium-oxide, and oxovanadium-hydroxide clusters toward methanol and small hydrocarbons. Various means of mass-spectrometric techniques, isotopic labeling studies, infrared photodissociation spectroscopy, and complementary DFT-calculations are employed for this purpose. Additionally, the hydrogen-atom abstraction process from methane by polynuclear metal oxides is discussed. This work contributes to a better understanding of the metal-oxide cluster's catalytic activity on a molecular scale.
Download or read book Investigation of Oxygen Defect Formation in Supported Vanadium Oxide Catalysts by Impedance Spectroscopy written by and published by . This book was released on 2013 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vanadium Oxide zirconia Catalyst for Propoane Oxidative Dehydrogenation written by Jun Yang and published by . This book was released on 1998 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kinetics and Thermodynamics of Oxygen Chemisorption on an Industrial Vanadium Oxide Catalyst written by National Research Council of Canada. Reprints and published by . This book was released on 1973 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Surface Chemistry of Vanadium Oxide Catalysts written by Kenneth Baker Lewis and published by . This book was released on 1988 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kinetics and Thermodynamics of Oxygen Chemisorption on an Industrial Vanadium Oxide Catalyst written by ROYAL MILITARY COLL OF CANADA KINGSTON (Ont.) DEPT OF ELECTRICAL ENGINEERING. and published by . This book was released on 1973 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemisorption of oxygen on an industrial vanadium pentoxide/potassium sulphate catalyst has been studied in the temperature range 300-353C by a gravimetric technique. The kinetic measurements suggest that at least two mechanisms are involved in oxygen chemisorption under certain conditions.
Download or read book Mixed Oxide Catalyst Containing Phosphorus Vanadium and Oxygen and Its Use written by R. A. Scheider and published by . This book was released on 1986 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Properties and Catalysis by Non Metals written by J.P. Bonnelle and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the field of heterogeneous catalysis. it is convenient to distinguish. in a perfectly unjustified and over··simplified way. bet:leen metal catalysts. 2nd the other catalysts. The fj.J"st are easy to define : they are those in which a reduced metal is the active phase. It is thus easy to circumscribe. by exclusion, the other class namely the "non-metals". We have adopted this definition for the sake of our colleagues working on catalysis by metals, and to avoid a lengthy title like "sm' face pl"operties and catalysts by transi tion metal oxides. sulftdes, carbides, nitriles, etc. Defined in this manner, non-metal catalysts represented, in 1980, 84 wt. % of the industrial heterogeneous catalysts. To be more specific, this proportion corresponds to catalysts which, under the working conditions in the industrial ?lant. contain their catalytically active metallic elements in a non-reduced state. It should however be recalled that most metal catalysts are supported on oxides, which, often, repl'esent over 90% (sometimes 99.4% in the case of the platinum reforming catalysts) of the total weight.
Download or read book An Investigation of Active and Selective Oxygen in Vanadium Phosphorus Oxide Catalysts for N butane Conversion to Maleic Anhydride written by Mark Edward Lashier and published by . This book was released on 1989 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies of Supported Vanadium Oxide Catalysts for the Selective Catalytic Reduction of Nitrogen Oxides written by Gregory Thomas Went and published by . This book was released on 1991 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Technology of Catalytic Oxidations written by Philippe Arpentinier and published by Editions Technip. This book was released on 2001 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 1 covers the most important technological aspects of the use of molecular oxygen for catalytic oxidation reactions.Volume 2 addresses the safety issues associated with the use of oxygen in catalytic oxidation reactions.Contents Vol. 1: 1. Introduction. 2. Chemical-physical properties of molecular oxygen. 3. Oxygen production technologies. 4. Chemical fundamentals of oxidation reactions. 5. Reactor technologies for multiphase systems. 6. Liquid phase oxidations. 7. Gas phase selective oxidations. 8. Selective oxidation of paraffins. References. Index. Vol. 2: 9. Introduction to safety problems in the chemical industry. 10. Chemical aspects of combustion in the gaseous phase. 11. Homogeneous chemical explosions: autoignition or spontaneous ignition. 12. Deflagration or propagation of flame. 13. Conditions governing flame propagation capability. 14. Detonation in the gaseous phase. 15. Prevention of and protection against explosions. References. Index.
Download or read book Canadian Journal of Chemistry written by and published by . This book was released on 1978 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Active Oxygen in Chemistry written by Christopher S. Foote and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taking an interdisciplinary approach, this book and its counterpart, Active Oxygen in Biochemistry, explore the active research area of the chemistry and biochemistry of oxygen. Complementary but independent, the two volumes integrate subject areas including medicine, biology, chemistry, engineering, and environmental studies.
Download or read book Preparation and Characterization of Vanadium Oxide aluminum Antimonate and Supported Antimony Oxide Catalysts written by Thomas John Curtis and published by . This book was released on 1993 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vanadium phosphorous oxygen Industrial Catalysts for C4 Hydrocarbon Selective Oxidation to Maleic Anhydride written by Robert Wayne Wenig and published by . This book was released on 1986 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
