Catalysts for Low Temperature Conversion of Nitrogen Oxides
Author: Martin Busch
Publisher:
Published: 2015
Total Pages: 174
ISBN-13: 9783954049905
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Catalysts for low temperature conversion of nitrogen oxides
Author: Martin Busch
Publisher: Cuvillier Verlag
Published: 2015-06-02
Total Pages: 174
ISBN-13: 3736949901
DOWNLOAD EBOOKNitrogen oxides are a major threat to human health and largely released by Diesel engines. The present book describes the preparation and characterization of appropriate catalyst systems for low temperature removal (150 - 400°C) and conversion of nitrogen oxides. The presented catalysts include commercially available activated carbon and zeolite supports, infiltrated with iron, copper, manganese and their oxides. The investigated catalysts adsorb and convert nitrogen dioxide almost completely and convert it quickly subsequently into the less toxic nitric oxide and nitrous oxide. Some eventually release nitrogen and oxygen, thus outperforming even the well-known Cu-ZSM-5 catalyst at low temperature. Stickoxide zählen zu den wichtigsten Umweltgiften und werden zu einem großen Anteil durch Dieselmotoren freigesetzt. Dieses Buch beschreibt die Herstellung und Charakterisierung von Katalysatorsysteme für die Niedertemperatur-Umsetzung (150 - 400°C) von Stickoxiden. Zu den vorgestellten Katalysatoren gehören kommerziell verfügbare Aktivkohle und Zeolith-Materialien, welche mit Eisen, Kupfer, Mangan und deren Oxiden infiltriert wurden. Alle untersuchten Katalysatorsysteme absorbieren Stickoxide rasch und setzen diese anschließend fast vollständig in die weit weniger toxischen Gase Stickstoffmonoxid und Distickstoffmonoxid um. Einige der untersuchten Katalysatorsystemen setzen schließlich Sauerstoff und Stickstoff frei und zeigen bei niedrigen Temperaturen sogar eine bessere Performance als der bereits gut bekannte Cu-ZSM-5 Katalysator.
Plasma Catalysis
Author: Annemie Bogaerts
Publisher: MDPI
Published: 2019-04-02
Total Pages: 248
ISBN-13: 3038977500
DOWNLOAD EBOOKPlasma 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.
Selective Catalytic Reduction of NOx
Author: Oliver Kröcher
Publisher: MDPI
Published: 2018-12-14
Total Pages: 281
ISBN-13: 3038973645
DOWNLOAD EBOOKThis book is a printed edition of the Special Issue "Selective Catalytic Reduction of NOx" that was published in Catalysts
Atlas of Zeolite Framework Types
Author: Ch. Baerlocher
Publisher: Elsevier
Published: 2007-09-12
Total Pages: 405
ISBN-13: 0080554342
DOWNLOAD EBOOKZeolite scientists, whether they are working in synthesis, catalysis, characterization or application development, use the Atlas of Zeolite Framework Types as a reference. It describes the main features of all of the confirmed zeolite framework structures, and gives references to the relevant primary structural literature. Since the last edition 34 more framwork types have been approved and are described in this new edition. A further new feature will be that characteristic building units will be listed for each of the framework types.Zeolites and their analogs are used as desiccants, as water softeners, as shape-selective acid catalysts, as molecular sieves, as concentrators of radioactive isotopes, as blood clotting agents, and even as additives to animal feeds. Recently, their suitability as hosts for nanometer spacing of atomic clusters has also been demonstrated. These diverse applications are a reflection of the fascinating structures of these microporous materials. Each time a new zeolite framework structure is reported, it is examined by the Structure Commission of the International Zeolite Association (IZA-SC), and if it is found to be unique and to conform to the IZA-SC's definition of a zeolite, it is assigned a 3-letter framework type code. This code is part of the official IUPAC nomenclature for microporous materials. The Atlas of Zeolite Framework Types is essentially a compilation of data for each of these confirmed framework types. These data include a stereo drawing showing the framework connectivity, features that characterize the idealized framework structure, a list of materials with this framework type, information on the type material that was used to establish the framework type, and stereo drawings of the pore openings of the type material. - Clear stereo drawings of each of the framework types - Description of the features of the framework type, allowing readers to quickly see if the framework type is suitable to their needs - References to isotypic materials, readers can quickly identify related materials and consult the appropriate reference
Nitrogen oxides (NOx) why and how they are controlled
Author:
Publisher: DIANE Publishing
Published: 1999
Total Pages: 57
ISBN-13: 1428902805
DOWNLOAD EBOOKAdvances and Technology Development in Greenhouse Gases: Emission, Capture and Conversion
Author: Mohammad Reza Rahimpour
Publisher: Elsevier
Published: 2024-07-20
Total Pages: 446
ISBN-13: 0443190704
DOWNLOAD EBOOKAdvances and Technology Development in Greenhouse Gases: Emission, Capture and Conversion is a comprehensive seven-volume set of books that discusses the composition and properties of greenhouse gases, and introduces different sources of greenhouse gases emission and the relation between greenhouse gases and global warming. The comprehensive and detailed presentation of common technologies as well as novel research related to all aspects of greenhouse gases makes this work an indispensable encyclopedic resource for researchers in academia and industry.Volume 6 titled Methane, Nitrox Oxide, and Ozone Conversion and Applications studies the applications of any greenhouse gases (GHGs) other than carbon dioxide. This book reviews the applications of methane, nitrox oxide, and ozone. It investigates any valuable product fabricated with the inclusion of methane, nitrox oxide, and ozone. The book also reviews recent advances, the largest operating plants and pilots for methane conversion, the economic assessments and cost analysis, and environmental impacts and challenges that are faced when developing these processes - Introduces applications and chemicals produced from methane - Describes nitrous oxide conversion and applications - Discusses about various applications of ozone
Nitrogen, the Confer-N-s
Author: K. van der Hoek
Publisher: Elsevier
Published: 2012-12-02
Total Pages: 813
ISBN-13: 0080984681
DOWNLOAD EBOOKThe First International Nitrogen Conference provided an opportunity for researchers and decision-makers to exchange information on environmental pollution by nitrogen compounds on three scales: global, continental/regional and local. The main topics were air, ground water and surface water pollution; emission sources, atmospheric chemistry, deposition processes and effects; disturbance of nitrogen cycles, critical loads and levels; assessments, policy development and evaluation; target groups and abatement techniques; and new approaches leading to an integrated abatement strategy.The peer-reviewed papers from the Conference presented in this volume will provide readers with a comprehensive review of the transport, deposition and impact on ecosystems of nitrogen.
Diesel Emissions and Their Control, 2nd Edition
Author: W. Addy Majewski
Publisher: SAE International
Published: 2023-12-20
Total Pages: 1135
ISBN-13: 1468605690
DOWNLOAD EBOOKEngineers, applied scientists, students, and individuals working to reduceemissions and advance diesel engine technology will find the secondedition of Diesel Emissions and Their Control to be an indispensablereference. Whether readers are at the outset of their learning journey orseeking to deepen their expertise, this comprehensive reference bookcaters to a wide audience.In this substantial update to the 2006 classic, the authors have expandedthe coverage of the latest emission technologies. With the industryevolving rapidly, the book ensures that readers are well-informed aboutthe most recent advances in commercial diesel engines, providing acompetitive edge in their respective fields. The second edition has alsostreamlined the content to focus on the most promising technologies.This book is rooted in the wealth of information available on DieselNet.com, where the “Technology Guide” papers offer in-depth insights. Eachchapter includes links to relevant online materials, granting readers accessto even more expertise and knowledge.The second edition is organized into six parts, providing a structuredjourney through every aspect of diesel engines and emissions control: Part I: A foundational exploration of the diesel engine, combustion, andessential subsystems. Part II: An in-depth look at emission characterization, health andenvironmental impacts, testing methods, and global regulations. Part III: A comprehensive overview of diesel fuels, covering petroleumdiesel, alternative fuels, and engine lubricants. Part IV: An exploration of engine efficiency and emission controltechnologies, from exhaust gas recirculation to engine control. Part V: The latest developments in diesel exhaust aftertreatment,encompassing catalyst technologies and particulate filters. Part VI: A historical journey through the evolution of dieselengine technology, with a focus on heavy-duty engines in the NorthAmerican market. (ISBN 9781468605693, ISBN 9781468605709, ISBN 9781468605716, DOI: 10.4271/9781468605709)
The Catalytic Chemistry of Nitrogen Oxides
Author: Richard Klimisch
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 337
ISBN-13: 1461587417
DOWNLOAD EBOOKThis book contains the papers and discussions from the sympo!,ium on "The Catalytic Chemistry of Nitrogen Oxides" held at the General Motors Research Laboratories on October 7-8, 1974. This symposium is the eighteenth in the annual series presented by the Research Laboratories. The topics for these symposiums have covered a broad range. Each topic was selected to be of intense current interest and of significant technical importance. There is no question that the subject of the 1974 Symposium satisfies these two criteria. The control of automotive nitrogen oxides has been perhaps the most difficult and controversial area of automotive emissions both in terms of what is necessary and in terms of what is technically feasible. This area has been a source of considerable discussion not only in the technical community but also in governments both in the U. S. and abroad. This meeting brought together scientists working in surface chemistry with engineers working on system design. It also brought together representatives of government, academia and industry. We feel that an important side benefit of the meeting was the improved understanding that was developed between these groups. Participants came from Europe and Japan as well as Canada and the United States. The technical papers spanned the range from fundamental interactions of NO on surfaces through bench scale kinetic and mechanistic studies and ended with catalytic applications. Although the emphasis was on automotive NO removal, stack gas NO x x control was also covered.
