Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Insights Into The Selective Catalytic Reduction Of Nox From Quantum Chemical Calculations And Theoretical X Ray Spectroscopy
Download Insights Into The Selective Catalytic Reduction Of Nox From Quantum Chemical Calculations And Theoretical X Ray Spectroscopy full books in PDF, epub, and Kindle. Read online Insights Into The Selective Catalytic Reduction Of Nox From Quantum Chemical Calculations And Theoretical X Ray Spectroscopy ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Selective Catalytic Reduction of NOx by : Oliver Kröcher
Download or read book Selective Catalytic Reduction of NOx written by Oliver Kröcher and published by MDPI. This book was released on 2018-12-14 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Selective Catalytic Reduction of NOx" that was published in Catalysts
Book Synopsis Simultaneous Catalytic Removal of Diesel Soot and NOx by : Wenfeng Shangguan
Download or read book Simultaneous Catalytic Removal of Diesel Soot and NOx written by Wenfeng Shangguan and published by Springer. This book was released on 2018-06-28 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book not only explores catalysis processes in redox reactions but also proposes a potential after-treatment strategy. Summarizing the authors’ major works, it offers a guidebook for those working on environmental and industrial catalysis. It presents insights into reaction kinetics in a variety of materials and analyzes the external conditions influencing the reaction. As such it is of particular interest to engineers and scientists in the field of material chemistry, chemical engineering and automobile industry. With novel images and illustrations, it provides a new perspective for interpreting soot abatement material and understanding the reaction process and inspires scientists to design new catalysts with moderate redox capacity.
Book Synopsis Reactivity of Nitric Oxide on Copper Surfaces by : Akitoshi Shiotari
Download or read book Reactivity of Nitric Oxide on Copper Surfaces written by Akitoshi Shiotari and published by Springer. This book was released on 2017-06-07 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides microscopic insights into chemical properties of NO on metal surfaces. NO/metal systems have been studied intensively to understand heterogeneous catalysis to detox exhaust NOx gas. The identification and componential analysis of various and mixed chemical species of NO adsorbed onto the surfaces have been significant challenges faced by conventional experimental techniques, such as vibrational spectroscopies. The author investigated "individual" NO molecules on Cu surfaces using low-temperature scanning tunneling microscopy (STM). STM not only provides information on the geometric, electronic, and vibrational properties at the single-molecule level; it is also able to manipulate molecules on surfaces to induce chemical reaction. Exploiting those techniques, the author chemically identified individual NO-related species on the surfaces and discovered new reaction processes for NO reduction, which provides microscopic insights into the catalytic mechanisms. The author also visualized wave functions of electrons in a valence orbital of NO and demonstrated that the wave functions are modified by the formation of covalent bonding or hydrogen bonding. This is, namely, "the visualization of quantum mechanics in real space," which is certainly worth reading. Furthermore, the book demonstrates that direct observation of valence orbitals helps to elucidate the reactivity of molecules adsorbed onto surfaces. This innovative approach to studying molecular properties will contribute to further development of STM and its related methods.
Book Synopsis Reduction of Nitrogen Oxide Emissions by : Umit S. Ozkan
Download or read book Reduction of Nitrogen Oxide Emissions written by Umit S. Ozkan and published by . This book was released on 1995 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes two overview chapters covering both technical and regulatory aspects of nitrogen oxide emissions from stationary sources. Discusses new directions in the field, such as direct composition of NO 2, different reducing agents, new catalytic materials, and two new noncatalytic techniques. Provides a thorough insight into the phenomena involved in existing technologies. Offers a broad spectrum of studies tackling the problem of NO 2 reduction.
Book Synopsis Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts by : Isabella Nova
Download or read book Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts written by Isabella Nova and published by Springer Science & Business Media. This book was released on 2014-03-14 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts presents a complete overview of the selective catalytic reduction of NOx by ammonia/urea. The book starts with an illustration of the technology in the framework of the current context (legislation, market, system configurations), covers the fundamental aspects of the SCR process (catalysts, chemistry, mechanism, kinetics) and analyzes its application to useful topics such as modeling of full scale monolith catalysts, control aspects, ammonia injections systems and integration with other devices for combined removal of pollutants.
Book Synopsis Selective Catalytic Reduction of NOx by : Oliver Kröcher
Download or read book Selective Catalytic Reduction of NOx written by Oliver Kröcher and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The most efficient process to reduce NOx emissions from lean exhaust gases, selective catalytic reduction (SCR) with ammonia, has undergone tremendous development over the past decades. Originally only applied in stationary power plants and industrial installations, SCR systems are now installed in millions of mobile diesel engines, ranging from off-road machineries, to heavy-duty and light-duty trucks and passenger cars, to locomotives and ships. All of these applications involve specific challenges due to tighter emission limits, new internal combustion engine technologies, or alternative fuels. Three review articles and 14 research articles in this book describe recent results and research trends of various aspects of the SCR process. Reaction engineering aspects, such as the proper dosage of ammonia or urea, respectively, are as important as further developments of the different SCR catalysts, by deepening the understanding of their functionality or by systematic improvements of their properties, such as low-temperature activity, selectivity, or poisoning-resistance. Another covered aspect is cost reduction through the use of cheaper base materials for the production is active and stable SCR catalysts. Finally, research efforts are reported to develop SCR processes with different reducing agents, which would open doors to new applications in the future. The range of topics addressed in this book will stimulate the reader's interest as well as provide a valuable source of information for researchers in academia and industry.
Book Synopsis Quantum Chemistry Studies of Catalytic and Photocatalytic Materials by : Anne Marie Shough
Download or read book Quantum Chemistry Studies of Catalytic and Photocatalytic Materials written by Anne Marie Shough and published by ProQuest. This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Various established and novel quantum chemistry methods are employed to investigate the properties of photocatalytic materials. Hybrid quantum mechanics/molecular mechanics (QM/MM) cluster models are developed, allowing accurate geometric and electronic structure predictions for one-dimensional O-Ti-O chains in the microporous titanosilicate ETS-10. This model is exploited to identify transition metal substituents capable of improving the photocatalytic properties of ETS-10. A detailed investigation of vanadium substitution is presented, supporting the presence of both V IV and V V states in experimental samples. Consistent with experimental results, visible-light band gap energies and improved charge separation are predicted for V-substituted ETS-10, establishing this material as a promising visible light photocatalyst. Transition metal substitution trends, based on seven transition metals, are used to develop linear models capable of rapidly estimating key features of the electronic structure for various transition metal combinations. These linear models predict that systems with small ionic radii (V V, Fe III) and high oxidation states (V V, Mo V) are favored for obtaining visible-light band gap energies within the visible range of the spectrum. Similar computational methods are used to investigate reaction mechanisms for the high temperature decomposition of Brønsted acid and hydroxyl nest sites in zeolite materials. The decomposition of these sites is generally attributed to a dehydration mechanism. However, comparable reaction energies are predicted for proposed dehydrogenation pathways, suggesting that both reactions are likely to occur. This is consistent with recent experimental reports that have identified H 2 as the primary product from thermally treated zeolites. Predicted geometries and optical absorption spectra of the proposed dehydrogenation products are consistent with experimental results, providing insight into the structure of active sites in zeolite materials used in high temperature industrial applications. In the final section, a new methodology, the poly-functional (PF) method, is developed for predicting thermochemical properties. This method employs linear combinations of enthalpy estimates from different density functionals, exploiting error correlations among the functionals and allowing for further improvements in accuracy. Unlike more costly methods, the PF method boasts a good compromise between accuracy and computational efforts making it useful for larger systems or where computational resources are limited. Opportunities to improve PF accuracy and implications for the development of future density functional theory are discussed.
Book Synopsis Plasma Catalysis by : Annemie Bogaerts
Download or read book Plasma Catalysis written by Annemie Bogaerts and published by MDPI. This book was released on 2019-04-02 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma catalysis is gaining increasing interest for various gas conversion applications, such as CO2 conversion into value-added chemicals and fuels, N2 fixation for the synthesis of NH3 or NOx, methane conversion into higher hydrocarbons or oxygenates. It is also widely used for air pollution control (e.g., VOC remediation). Plasma catalysis allows thermodynamically difficult reactions to proceed at ambient pressure and temperature, due to activation of the gas molecules by energetic electrons created in the plasma. However, plasma is very reactive but not selective, and thus a catalyst is needed to improve the selectivity. In spite of the growing interest in plasma catalysis, the underlying mechanisms of the (possible) synergy between plasma and catalyst are not yet fully understood. Indeed, plasma catalysis is quite complicated, as the plasma will affect the catalyst and vice versa. Moreover, due to the reactive plasma environment, the most suitable catalysts will probably be different from thermal catalysts. More research is needed to better understand the plasma–catalyst interactions, in order to further improve the applications.
Book Synopsis NOx Trap Catalysts and Technologies by : Luca Lietti
Download or read book NOx Trap Catalysts and Technologies written by Luca Lietti and published by Royal Society of Chemistry. This book was released on 2018-06-13 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vehicle exhaust emissions, particularly from diesel cars, are considered to be a significant problem for the environment and human health. Lean NOx Trap (LNT) or NOx Storage/Reduction (NSR) technology is one of the current techniques used in the abatement of NOx from lean exhausts. Researchers are constantly searching for new inexpensive catalysts with high efficiency at low temperatures and negligible fuel penalties, to meet the challenges of this field. This book will be the first to comprehensively present the current research on this important area. Covering the technology used, from its development in the early 1990s up to the current state-of-the-art technologies and new legislation. Beginning with the fundamental aspects of the process, the discussion will cover the real application standard through to the detailed modelling of full scale catalysts. Scientists, academic and industrial researchers, engineers working in the automotive sector and technicians working on emission control will find this book an invaluable resource.
Book Synopsis Selective Catalytic Reduction and NOx Control in Japan by : Gary Dair Jones
Download or read book Selective Catalytic Reduction and NOx Control in Japan written by Gary Dair Jones and published by . This book was released on 1981 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantum Inorganic Chemistry written by and published by Royal Society of Chemistry. This book was released on 2003 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: A discussion of recent developments in all aspects of computational chemistry.
Book Synopsis The Quantumchemical Calculation of Fluorine-containing Oxidizers of the Differential Fuels by : V. A. Babkin
Download or read book The Quantumchemical Calculation of Fluorine-containing Oxidizers of the Differential Fuels written by V. A. Babkin and published by Nova Publishers. This book was released on 2007 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The calculation of traditional fluorine-containing (F2, OF2, N2F4, ClO3F, ClF5, ClF3) and oxygen-containing (OF2, O2, H2O2, N2O4, HNO3, ClO3F) oxidisers of differential fuels has been performed by the different classical semi-empirical quantum-chemical methods (CNDO, CNDO/2, MNDO, AM1, PM3) and ?B-INITIO in the many principal basis-sets optimising the all geometric parameters. It is shown, the high correlative dependencies between the burn parameters of the differential fuels (H2, N2H4, H2N2(CH3)2, CH2, AlH3, B5H9, BeH2) and calculated values of quantum-chemical parameters of the fluorine-containing (oxygencontaining) oxidisers exist in the form of Ip is specific impulse of pressure, P1 is specific traction in atmosphere, Pi is specific traction in vacuum, depending on Qfmin is minimum electronic charge on fluorine atom (Qfmin is the minimum electronic charge on oxygen atom). The authors performed comparative analysis of results of the quantum-chemical semi-empirical and ab-initio calculations for different fuels. The simple interpretation and illustration of the physical nature of these correlative dependencies are offered. The authors established the technique of theoretical estimation of the burn parameters of oxidisers of the differential fuels, that may be used to look for new more efficient non-pollution oxidisers.
Book Synopsis Advances in Chemical Engineering by : Guy B. Marin
Download or read book Advances in Chemical Engineering written by Guy B. Marin and published by Academic Press. This book was released on 2011-08-09 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume on automotive emission control emphasizes the role of chemical engineering in automotive emission control. Clearly the development of mathematical models describing the different functions of the converter(s), as well as their interaction, has been and still is crucial. Each of the contributions advocates the implementation of the latter, combined with experimental validation, rather than engaging into elaborate experimental programs. Provides original reviews Contains features by leading chemical engineers Reviews state-of-the-art developments
Book Synopsis New and Future Developments in Catalysis by : C.P. Vinod
Download or read book New and Future Developments in Catalysis written by C.P. Vinod and published by Elsevier Inc. Chapters. This book was released on 2013-07-13 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Catalysis by : John N. Armor
Download or read book Environmental Catalysis written by John N. Armor and published by American Chemical Society. This book was released on 1994 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive volume on the major aspects of environmental catalysis. Focuses on NO x removal, mobile engine emission controls, power plant emissions, control of volatile organic compounds, SO x emissions, and waste minimization. Overview chapters introduce each section and provide added perspective and coverage. Includes comprehensive technical reports on automotive and diesel emission control catalysis, NO x removal, and removal of chlorinated hydrocarbons from various process streams.
Book Synopsis Insights into the Chemistry of Organic Structure-Directing Agents in the Synthesis of Zeolitic Materials by : Luis Gómez-Hortigüela
Download or read book Insights into the Chemistry of Organic Structure-Directing Agents in the Synthesis of Zeolitic Materials written by Luis Gómez-Hortigüela and published by Springer. This book was released on 2018-12-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume focuses on the host-guest chemistry of organic molecules and inorganic systems during synthesis (structure-direction). Organic molecules have been used for many years in the synthesis of zeolitic nanoporous frameworks. The addition of these organic molecules to the zeolite synthesis mixtures provokes a particular ordering of the inorganic units around them that directs the crystallization pathway towards a particular framework type; hence they are called structure-directing agents. Their use has allowed the discovery of an extremely large number of new zeolite frameworks and compositions. This volume covers the main aspects of the use of organic molecules as structure-directing agents for the synthesis of zeolites, including first an introduction of the main concepts, then two chapters covering state-of-the-art techniques currently used to understand the structure-directing phenomenon (location of molecules by XRD and molecular modeling techniques). The most recent trends in the types of organic molecules used as structure-directing agents are also presented, including the use of metal-complexes, the use of non-ammonium-based molecules (mainly phosphorus-based compounds) and the role of supramolecular chemistry in designing new large organic structure-directing agents produced by self-aggregation. In addition the volume explores the latest research attempting to transfer the asymmetric nature of organic chiral molecules used as structure-directing agents to the zeolite lattice to produce chiral enantioselective frameworks, one of the biggest challenges today in materials chemistry. This volume has interdisciplinary appeal and will engage scholars from the zeolite community with a general interest in microporous materials, which involves not only zeolite scientists, but also researchers working on metal-organic framework materials. The concepts covered will also be of interest for researchers working on the application of materials after encapsulation of molecules of interest in post-synthetic treatments. Further the work explores the main aspects of host-guest chemistry in hybrid organo-inorganic templated materials, which covers all types of materials where organic molecules are used as templates and are confined within framework-structured inorganic materials (intercalation compounds). Therefore the volume is also relevant to the wider materials chemistry community.
Book Synopsis Quantum Chemistry Approaches to Chemisorption and Heterogeneous Catalysis by : F. Ruette
Download or read book Quantum Chemistry Approaches to Chemisorption and Heterogeneous Catalysis written by F. Ruette and published by . This book was released on 2014-01-15 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
