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Author : B. M. Willatt
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (599 download)
Download or read book Inhibition of Hydrocarbon Oxidation Over Supported Precious Metal Catalysts written by B. M. Willatt and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Daniel Duprez
Publisher : World Scientific
ISBN 13 : 1783263342
Total Pages : 1035 pages
Book Rating : 4.7/5 (832 download)
Download or read book Handbook Of Advanced Methods And Processes In Oxidation Catalysis: From Laboratory To Industry written by Daniel Duprez and published by World Scientific. This book was released on 2014-07-24 with total page 1035 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive overview of the most recent developments in both total oxidation and combustion and also in selective oxidation. For each topic, fundamental aspects are paralleled with industrial applications. The book covers oxidation catalysis, one of the major areas of industrial chemistry, outlining recent achievements, current challenges and future opportunities. One distinguishing feature of the book is the selection of arguments which are emblematic of current trends in the chemical industry, such as miniaturization, use of alternative, greener oxidants, and innovative systems for pollutant abatement. Topics outlined are described in terms of both catalyst and reaction chemistry, and also reactor and process technology.
Author :
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (96 download)
Download or read book Low-temperature CO Oxidation Over a Ternary Oxide Catalyst with High Resistance to Hydrocarbon Inhibition written by and published by . This book was released on 2015 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Platinum group metal (PGM) catalysts are the current standard for control of pollutants in automotive exhaust streams. Aside from their high cost, PGM catalysts struggle with CO oxidation at low temperatures (
Author : James J Spivey
Publisher : Royal Society of Chemistry
ISBN 13 : 1847553214
Total Pages : 294 pages
Book Rating : 4.8/5 (475 download)
Download or read book Catalysis written by James J Spivey and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an increasing challenge for chemical industry and research institutions to find cost-efficient and environmentally sound methods of converting natural resources into fuels chemicals and energy. Catalysts are essential to these processes and the Catalysis Specialist Periodical Report series serves to highlight major developments in this area. This series provides systematic and detailed reviews of topics of interest to scientists and engineers in the catalysis field. The coverage includes all major areas of heterogeneous and homogeneous catalysis and also specific applications of catalysis such as NOx control kinetics and experimental techniques such as microcalorimetry. Each chapter is compiled by recognised experts within their specialist fields and provides a summary of the current literature. This series will be of interest to all those in academia and industry who need an up-to-date critical analysis and summary of catalysis research and applications. Catalysis will be of interest to anyone working in academia and industry that needs an up-to-date critical analysis and summary of catalysis research and applications. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading experts in their specialist fields, this series is designed to help the chemistry community keep current with the latest developments in their field. Each volume in the series is published either annually or biennially and is a superb reference point for researchers. www.rsc.org/spr
Author : Paul Matthew Witt
Publisher :
ISBN 13 :
Total Pages : 234 pages
Book Rating : 4.:/5 (319 download)
Download or read book The Partial Oxidation of Light Hydrocarbons Over Noble Metal Catalysts at Less Than Millisecond Contact Times written by Paul Matthew Witt and published by . This book was released on 1997 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vasile I. Parvulescu
Publisher : John Wiley & Sons
ISBN 13 : 3527649549
Total Pages : 423 pages
Book Rating : 4.5/5 (276 download)
Download or read book Plasma Chemistry and Catalysis in Gases and Liquids written by Vasile I. Parvulescu and published by John Wiley & Sons. This book was released on 2013-03-19 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling the gap for a book that covers not only plasma in gases but also in liquids, this is all set to become the standard reference for this topic. It provides a broad-based overview of plasma-chemical and plasmacatalytic processes generated by electrical discharges in gases, liquids and gas/liquid environments in both fundamental and applied aspects by focusing on their environmental and green applications and also taking into account their practical and economic viability. With the topics addressed by an international group of major experts, this is a must-have for scientists, engineers, students and postdoctoral researchers specializing in this field.
Author : Richard L. Klimisch
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (838 download)
Download or read book Oxidation of CO and Hydrocarbons Over Supported Transition Metal Oxide Catalysts written by Richard L. Klimisch and published by . This book was released on 1968 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael James Patterson
Publisher :
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.:/5 (223 download)
Download or read book Oxidation of Hydrocarbon Mixtures Over Platinum Group Metal Catalysts written by Michael James Patterson and published by . This book was released on 2000 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Per-Anders Carlsson
Publisher :
ISBN 13 : 9789172914872
Total Pages : 53 pages
Book Rating : 4.9/5 (148 download)
Download or read book Transient Phenomena in Co and Hydrocarbon Oxidation Over Supported Platinum Catalysts written by Per-Anders Carlsson and published by . This book was released on 2004 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ronald Brown
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (599 download)
Download or read book A Study of Hydrocarbon Reactions Over Supported Metal Catalysts written by Ronald Brown and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jinto Manjaly Anthonykutty
Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (896 download)
Download or read book Selective oxidation of glycerol and 1, 2-propanediol over supported precious metal catalysts written by Jinto Manjaly Anthonykutty and published by . This book was released on 2009 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Aideen O'Malley
Publisher :
ISBN 13 :
Total Pages : 392 pages
Book Rating : 4.:/5 (264 download)
Download or read book Catalytic Oxidation of Volatile Organic Compounds on Precious Metal Catalysts written by Aideen O'Malley and published by . This book was released on 1998 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Karl C. Stein
Publisher :
ISBN 13 :
Total Pages : 1200 pages
Book Rating : 4.3/5 (243 download)
Download or read book Catalytic Oxidation of Hydrocarbons written by Karl C. Stein and published by . This book was released on 1963 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ludmila I. Matienko
Publisher : Nova Science Publishers
ISBN 13 : 9781608763856
Total Pages : 0 pages
Book Rating : 4.7/5 (638 download)
Download or read book Selective Catalytic Hydrocarbons Oxidation written by Ludmila I. Matienko and published by Nova Science Publishers. This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The different methods for enhancing the catalytic activity of transition metal complexes in hydrocarbon (particularly, alkylarene) oxidations with dioxygen are briefly discussed. The role played by H-bonds in mechanisms of homogeneous catalysis is also analysed. Furthermore, the authors propose a strategy of controlling the catalytic activity of Fe(II,III)(acac)nL2 complexes (L2 = R4NBr or 18C6) by adding H2O to small concentrations. In addition, the activity of Ni, Fe, and Co catalysts in microsteps of chain initiation (O2 activation), and propagation (Cat + RO2?) in the radical chain process of ethylbenzene oxidation is assessed by original method offered by authors. New concepts of mechanism of chain process of hydrocarbon oxidations with dioxygen, catalysed with transition metal complexes, participation of catalysts in microsteps of complicated hydrocarbon oxidation, activity M-O2 (M = Co, Ni, Fe) complexes in different oxidation reactions are briefly stated, and the self-assembled (self-organised) systems mediated by transition metals are briefly considered in connection with increasing research interest in chemical transformations with use of these systems.
Author : Harry Hyunsuk Oh
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (827 download)
Download or read book C3H6/NOx Interactions Over a Diesel Oxidation Catalyst written by Harry Hyunsuk Oh and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: C3H6 oxidation over a Pt/Al2O3 catalyst with or without NOx present was investigated. In particular, its reaction mechanism was studied using diffuse reflectance infrared spectroscopy (DRIFTS), a reactor system designed for monolith-supported catalysts and a micro-reactor system designed for powder catalysts referred to as CATLAB. These experiments reveal that C3H6 oxidation is inhibited by the presence of NO, NO oxidation is inhibited by the presence of CeH6, and that adsorbed NOx can react with gas phase C3H6. DRIFTS and CATLAB results confirm the reaction between C3H6 and nitrates, which are formed during NOx adsorption, with linear nitrites observed as reaction products. Therefore, a reaction route is proposed for C3H6 oxidation in the presence of NOx, namely, nitrates acting as oxidants. Using NO2 instead of NO, or using a high NOx/C3H6 ratio, which is beneficial for nitrate formation, favors this reaction pathway. Data also showed that Pt is required for this reaction, which suggests the nitrates in proximity to the Pt particles are affected/relevant. Reaction kinetics studies of C3H6 oxidation over Pt/Al2O3 and Pt/SiO2 catalysts were performed in CATLAB using a temperature-programmed oxidation method with different oxidants: O2, NO2 and nitrates. The reaction kinetics of these possible reactions were compared in order to determine which reaction is more important. NOx adsorption does not occur on the SiO2 surface so the reaction between C3H6 and NO2 could be isolated and the effect of nitrates could be observed as well when compared to the results from Pt/Al2O3. The Pt dispersions were determined using H2 chemisorption and were 1.3 and 1.6% for Pt/Al2O3 and Pt/SiO2, respectively. C3H6 oxidation starts at a lower temperature with O2 than with NO2 but the activation energy was lower with NO2. This gives indication that hydrocarbons must be activated first for NO2 to be favored in hydrocarbon oxidation. When the experiment was done with C3H6 and nitrates, the reaction did not occur until NOx started to desorb from the catalyst at higher temperatures, when nitrates become unstable and decompose. Therefore, O2 was added to the system and the reaction began at even lower temperature than with just C3H6 and O2. This proved that hydrocarbons need to be activated in order for surface nitrates to affect C3H6 oxidation and this reaction also resulted in a lower activation energy than with just C3H6 and O2. Nitrate consumption was also observed as less NOx desorbed from the catalyst at the later stage of the temperature ramp compared to the amount desorbed when the catalyst was not exposed to C3H6.
Author : Karishma Vistasp Irani
Publisher :
ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (613 download)
Download or read book Characterization of Competitive Oxidation Reactions Over a Model Pt-Pd/Al2O3 Diesel Oxidation Catalyst written by Karishma Vistasp Irani and published by . This book was released on 2009 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been a growing interest in using lean-burn engines due to their higher fuel economy and associated lower CO2 emissions. However, there are challenges in reducing NOX in an O2-rich (lean-burn) exhaust, and in low temperature soot oxidation. NOX storage/reduction (NSR) and selective catalytic reduction (SCR) are commercial NOX reduction technologies, and both are more efficient with levels of NO2 that are higher than those that are in engine exhaust (engine-out NO2 levels are ~10% of the total NOX). Therefore diesel oxidation catalysts are installed upstream of these technologies to provide NO2 through NO oxidation. The motivation behind this research project was two-fold. The first was to gain a better understanding of the effect of hydrocarbons on NO oxidation over a monolithic diesel oxidation catalyst. The second was to spatially resolve competitive oxidation reactions as a function of temperature and position within the same diesel oxidation catalyst (as that used in the first part). A technique known as spatially resolved capillary-inlet mass spectrometry (SpaciMS) was used to measure the gas concentrations at various positions within the catalyst. Diesel engine exhaust contains a mixture of compounds including NO, CO and various hydrocarbons, which react simultaneously over a catalyst, and each can influence the oxidation rates of the others. While studying the effect of hydrocarbons on NO oxidation in this project, propylene was found to have an apparent inhibition effect on NO oxidation, which increased with increasing propylene concentration. This apparent inhibition is a result of the NO2, as a product of NO oxidation, reacting with the propylene as an oxidant. Experiments with NO2 demonstrate a significant temperature decrease in the onset of NO2 reduction when propylene was present, which decreased further with increasing amounts of propylene, verifying NO2 as an oxidant. Similar results were observed with m-xylene and dodecane addition as well. The results also demonstrate that NO2 was consumed preferentially relative to O2 during hydrocarbon oxidation. With low inlet levels of O2, it was evident that the addition of NO2 had an apparent inhibition effect on propylene oxidation after the onset of NO2 reduction. This subsequent inhibition was due to the NO formed, demonstrating that C3H6 results in reduced NO2 outlet levels while NO inhibits C3H6 oxidation. The development of new models as well as validation of existing models requires the ability to spatially resolve oxidation reactions within a monolith. Spatially-resolved data will also give catalyst manufacturers insight into the location of active fronts, thereby directing the design of more efficient catalysts. In this research project, spatially resolving the oxidation reactions demonstrated that H2 and CO are oxidized prior to C3H6 and C12H26 and clearly show back-to-front ignition of the reductant species. An enhancement in NO oxidation was observed at the same time as dodecane oxidation light off, likely related to dodecane partial oxidation products.
Author : Markus Matthias Schubert
Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.:/5 (722 download)
Download or read book Mechanistic Insights Into the Preferential CO Oxidation in H_1tn2-rich Gas (PROX) Over Supported Noble Metal Catalysts written by Markus Matthias Schubert and published by . This book was released on 2000 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
