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Mathematical Modeling Of Selective Catalytic Reduction Of Nox With Ammonia In Unsteady State Reactors
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Book Synopsis Mathematical Modeling of Selective Catalytic Reduction of NOx with Ammonia in Unsteady-state Reactors by : Claudiu Cristian Botar-Jid
Download or read book Mathematical Modeling of Selective Catalytic Reduction of NOx with Ammonia in Unsteady-state Reactors written by Claudiu Cristian Botar-Jid and published by . This book was released on 2007 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selective catalytic reduction of nitrogen oxides with ammonia in forced unsteady state reactors : case based and mathematical model simulation reasoning by : Botar-Jid Claudiu Cristian
Download or read book Selective catalytic reduction of nitrogen oxides with ammonia in forced unsteady state reactors : case based and mathematical model simulation reasoning written by Botar-Jid Claudiu Cristian and published by . This book was released on 2007 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 715 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 Case Based Design by : Yuri Avramenko
Download or read book Case Based Design written by Yuri Avramenko and published by Springer Science & Business Media. This book was released on 2008-01-21 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a highly authoritative and systematic manner, this book offers an in-depth treatment of the essence of the case–based reasoning strategy and case-based design dwelling upon the algorithmic facet of the paradigm. It provides an excellent applied research framework by showing how this development can be effectively utilized in the real word complicated environment of process engineering, a pursuit that is rarely reported in the literature in such a comprehensive manner.
Book Synopsis Modelling, Simulation and Optimization of Industrial Fixed Bed Catalytic Reactors by : S. S. E. H. Elnashaie
Download or read book Modelling, Simulation and Optimization of Industrial Fixed Bed Catalytic Reactors written by S. S. E. H. Elnashaie and published by CRC Press. This book was released on 1994-03-07 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of mathematical modelling of gas-solid catalytic reactors in industry is still limited. By consolidating progress in the understanding of catalytic processes, this book applies these fundamental advances to the development of models for design, simulation and optimization of industrial reactors.
Book Synopsis Structured Catalysts and Reactors by : Andrzej Cybulski
Download or read book Structured Catalysts and Reactors written by Andrzej Cybulski and published by CRC Press. This book was released on 2005-11-02 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in structured catalysts is steadily increasing due to the already proven, as well as potential, advantages of these catalysts. Updating the comprehensive coverage of the first edition published in 1998 with the latest science and applications, Structured Catalysts and Reactors, Second Edition gives detailed information on all aspect
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 Kinetic Modeling of Honeycomb-type Reactor for the Selective Catalytic Reduction of NOx by NH3 by : Bertrand Roduit
Download or read book Kinetic Modeling of Honeycomb-type Reactor for the Selective Catalytic Reduction of NOx by NH3 written by Bertrand Roduit and published by . This book was released on 1998 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acid Precipitation written by and published by . This book was released on 1989 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 317 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 Selective Catalytic Reduction Technology for the Control of Nitrogen Oxide Emissions from Coal-Fired Boilers by : Gene Knight
Download or read book Selective Catalytic Reduction Technology for the Control of Nitrogen Oxide Emissions from Coal-Fired Boilers written by Gene Knight and published by DIANE Publishing. This book was released on 2008-08 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Clean Coal Technology Demo. Program (CCTDP) is an effort to demonstrate a new generation of innovative coal utilization processes in a series of facilities built across the country. These projects are carried out on a commercial scale to prove technical feasibility and provide the info. required for future applications. Projects have demonstrated technical options with the potential to meet the needs of energy markets while satisfying environ. requirements. Part of this program is the demo. of technologies designed to reduce emissions of oxides of nitrogen (NOx) from existing coal-fired utility boilers. This report summarizes the status of selective catalytic reduction (SCR) technology for the control of NOx emissions from high-sulfur, coal-fired boilers. Illus.
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 Mathematical Modelling of the Selective Catalytic Reduction of Nitrogen Oxides in Combustion Products by : Andrew Manning
Download or read book Mathematical Modelling of the Selective Catalytic Reduction of Nitrogen Oxides in Combustion Products written by Andrew Manning and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Book Synopsis Kinetics and Mechanistic Studies of Hydrocarbon Oxidation and Selective Catalytic Reduction of NOx in Monolith Reactors by : Richa Raj
Download or read book Kinetics and Mechanistic Studies of Hydrocarbon Oxidation and Selective Catalytic Reduction of NOx in Monolith Reactors written by Richa Raj and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The integrated LNT/SCR system is a promising technology for the reduction of NOx emission from the exhaust of lean-burn or diesel engine vehicles. The LNT/SCR operating concept involves the storage of NOx during the lean phase while unreacted hydrocarbons (C3H6, C2H4 etc.) and generated NH3 exit the LNT during the rich phase. In addition to NH3, olefinic hydrocarbons and/or partially oxidized species that break through the LNT may also adsorb on the SCR catalyst leading to additional NOx reduction by those species. In first part of the work, we performed bench-flow reactor and in-situ DRIFTS experiments to elucidate the propylene + NO + O2 reaction system on Cu-SSZ13 (chabazite) monolithic catalyst. Experiments were conducted under both steady state and transient conditions for application relevant feed conditions. Based on the bench-flow reactor studies and in-situ DRIFTS experiments a phenomenological reaction mechanism is proposed that involves reaction between oxygenates (partially oxidized hydrocarbon species) and NO to form isocyanates species ( -NCO), detected by DRIFTS which are further reduced to N2. The experimental work is followed by developing a mechanistic-based kinetic model is developed for selective catalytic reduction of NO with C3H6 on Cu chabazite (Cu-SSZ13) monolithic catalyst based on bench scale flow reactor studies and in-situ DRIFTS measurements. The kinetic model was developed in steps, starting with steady-state CO oxidation, followed by C3H6 oxidation, and then the C3H6 + NO + O2 reaction system. The models for CO+O2, C3H6+O2 and C3H6+NO+O2 were also validated using a new set of steady state experiments. The model provides insight about non-NH3 pathways (hydrocarbons, oxygenates, isocyanates etc.) for NOx reduction across the SCR. Finally, we developed a global kinetic model for co oxidation of CO and C3H6 over Pt/Al2O3 monolithic catalyst. The kinetic model developed is used to elucidate the dynamic and steady state hysteresis behavior observed during oxidation of CO+C3H6 mixture on Pt/Al2O3.
Book Synopsis Modeling of Selective Catalytic Reduction (SCR) of Nitric Oxide with Ammonia Using Four Modern Catalysts by : Giriraj Sharma
Download or read book Modeling of Selective Catalytic Reduction (SCR) of Nitric Oxide with Ammonia Using Four Modern Catalysts written by Giriraj Sharma and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, the steady-state performance of zeolite-based Cu-ZSM-5, vanadium based honeycomb monolith catalysts (V), vanadium-titanium based pillared inter layered clay catalyst (V-Ti PLIC) and vanadium-titanium-tungsten-based honeycomb monolith catalysts (V-Ti-W) was investigated in the selective catalytic reduction process (SCR) for NO removal using NH3 in presence of oxygen. The objective is to obtain the expression that would predict the conversion performance of the catalysts for different values of the SCR process parameters, namely temperature, inlet oxygen concentration and inlet ammonia concentration. The NO[subscript]x emission, its formation and control methods are discussed briefly and then the fundamentals of the SCR process are described. Heat transfer based and chemical kinetics based SCR process models are discussed and widely used rate order based model are reviewed. Based on the experimental data, regression analysis was performed that gives an expression for predicting the SCR rate for the complete temperature range and the rate order with respect to inlet oxygen and ammonia concentration. The average activation energy for the SCR process was calculated and optimum operating conditions were determined for each of the catalyst. The applicable operating range for the catalyst depends on the NO conversion as well as on the ammonia slip and the N2O and NO2 emission. The regression analysis was repeated for the applicable range and an expression was obtained that can be used to estimate the catalyst performance. For the Cu-ZSM-5, the best performance was observed for 400°C, 660 ppm inlet ammonia concentration and 0.1% inlet oxygen concentration. For the V based honeycomb monolith catalyst, the best performance was observed for 300°C, 264 ppm inlet ammonia concentration and 3% inlet oxygen concentration. For the V-Ti based PLIC catalyst, the best performance was observed for 350°C, 330 ppm inlet ammonia concentration and 3% inlet oxygen concentration. For the V-Ti-W based honeycomb monolith catalyst, the best performance was observed for 300°C, 330 ppm inlet ammonia concentration and 3% inlet oxygen concentration. The conversion performance of all of these catalysts is satisfactory for the industrial application. At the operating conditions listed above, the N2O emission is less than 20 ppm and the NO2 emission is less than 10 ppm. The results were validated by comparing the findings with the similar work by other research groups. The mechanism of SCR process is discussed for each of the catalyst. The probable reactions are listed and adsorption and desorption process are studied. The various mechanisms proposed by the researchers are discussed briefly. It is concluded that V-Ti-W and Cu-ZSM-5 catalyst are very promising for SCR of NO[subscript]x. The expressions can be used to estimate the conversion performance and can be utilized for optimal design and operation. The expressions relate the SCR rate to the input parameters such as temperature and inlet oxygen and ammonia concentration hence by controlling these parameters desired NO[subscript]x reduction can be achieved with minimal cost and emission.
Book Synopsis Selective catalytic reduction of NOx with NH3 by : Hanna Sjövall
Download or read book Selective catalytic reduction of NOx with NH3 written by Hanna Sjövall and published by . This book was released on 2009 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
