Nox Trap Catalysts And Technologies

Author : Luca Lietti,Lidia Castoldi
Publisher : Royal Society of Chemistry
Page : 490 pages
File Size : 54,7 Mb
Release : 2018-06-13
Category : Science
ISBN : 9781788013239

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NOx Trap Catalysts and Technologies by Luca Lietti,Lidia Castoldi Pdf

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.

Author : Anonim
Publisher : Unknown
Page : 324 pages
File Size : 40,9 Mb
Release : 2004
Category : Automobiles
ISBN : UVA:X004806076

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Emissions Technologies by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 40,5 Mb
Release : 2004
Category : Electronic
ISBN : OCLC:57697906

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Lean NOx Trap Catalysis for Lean Burn Natural Gas Engines by Anonim Pdf

As the nation's demand for energy grows along with concern for the environment, there is a pressing need for cleaner, more efficient forms of energy. The internal combustion engine is well established as one of the most reliable forms of power production. They are commercially available in power ranges from 0.5 kW to 6.5 MW, which make them suitable for a wide range of distributed power applications from small scale residential to large scale industrial. In addition, alternative fuels with domestic abundance, such as natural gas, can play a key role in weaning our nations dependence on foreign oil. Lean burn natural gas engines can achieve high efficiencies and can be conveniently placed anywhere natural gas supplies are available. However, the aftertreatment of Nox emissions presents a challenge in lean exhaust conditions. Unlike carbon monoxide and hydrocarbons, which can be catalytically reduced in lean exhaust, NOx emissions require a net reducing atmosphere for catalytic reduction. Unless this challenge of NOx reduction can be met, emissions regulations may restrict the implementation of highly efficient lean burn natural gas engines for stationary power applications. While the typical three-way catalyst is ineffective for NOx reduction under lean exhaust conditions, several emerging catalyst technologies have demonstrated potential. The three leading contenders for lean burn engine de-NOx are the Lean NOx Catalyst (LNC), Selective Catalytic Reduction (SCR) and the Lean Nox Trap (LNT). Similar to the principles of SCR, an LNT catalyst has the ability to store NOx under lean engine operation. Then, an intermittent rich condition is created causing the stored NOx to be released and subsequently reduced. However, unlike SCR, which uses urea injection to create the reducing atmosphere, the LNT can use the same fuel supplied to the engine as the reductant. LNT technology has demonstrated high reduction efficiencies in diesel applications where diesel fuel is the reducing agent. The premise of this research is to explore the application of Lean NOx Trap technology to a lean burn natural gas engine where natural gas is the reducing agent. Natural gas is primarily composed of methane, a highly stable hydrocarbon. The two primary challenges addressed by this research are the performance of the LNT in the temperature ranges experienced from lean natural gas combustion and the utilization of the highly stable methane as the reducing agent. The project used an 8.3 liter lean burn natural gas engine on a dynamometer to generate the lean exhaust conditions. The catalysts were packaged in a dual path aftertreatment system, and a set of valves were used to control the flow of exhaust to either leg during adsorption and regeneration.

Author : Society of Automotive Engineers
Publisher : SAE International
Page : 108 pages
File Size : 52,8 Mb
Release : 1996
Category : Technology & Engineering
ISBN : UOM:39076001995088

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Diesel/lean NOx Catalyst Technologies by Society of Automotive Engineers Pdf

Author : B. Ashok
Publisher : Elsevier
Page : 488 pages
File Size : 46,7 Mb
Release : 2021-11-09
Category : Technology & Engineering
ISBN : 9780128242285

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NOx Emission Control Technologies in Stationary and Automotive Internal Combustion Engines by B. Ashok Pdf

NOx Emission Control Technologies in Stationary and Automotive Internal Combustion Engines: Approaches Toward NOx Free Automobiles presents the fundamental theory of emission formation, particularly the oxides of nitrogen (NOx) and its chemical reactions and control techniques. The book provides a simplified framework for technical literature on NOx reduction strategies in IC engines, highlighting thermodynamics, combustion science, automotive emissions and environmental pollution control. Sections cover the toxicity and roots of emissions for both SI and CI engines and the formation of various emissions such as CO, SO2, HC, NOx, soot, and PM from internal combustion engines, along with various methods of NOx formation. Topics cover the combustion process, engine design parameters, and the application of exhaust gas recirculation for NOx reduction, making this book ideal for researchers and students in automotive, mechanical, mechatronics and chemical engineering students working in the field of emission control techniques. Covers advanced and recent technologies and emerging new trends in NOx reduction for emission control Highlights the effects of exhaust gas recirculation (EGR) on engine performance parameters Discusses emission norms such as EURO VI and Bharat stage VI in reducing global air pollution due to engine emissions

Author : C. Arcoumanis,Take Kamimoto
Publisher : Springer Science & Business Media
Page : 427 pages
File Size : 49,6 Mb
Release : 2009-06-29
Category : Science
ISBN : 9783540689010

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Flow and Combustion in Reciprocating Engines by C. Arcoumanis,Take Kamimoto Pdf

Optimization of combustion processes in automotive engines is a key factor in reducing fuel consumption. This book, written by eminent university and industry researchers, investigates and describes flow and combustion processes in diesel and gasoline engines.

Author : Anonim
Publisher : Unknown
Page : 902 pages
File Size : 41,6 Mb
Release : 1990-04-24
Category : Administrative law
ISBN : UIUC:30112059132396

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Federal Register by Anonim Pdf

Author : Xin Tu,J. Christopher Whitehead,Tomohiro Nozaki
Publisher : Springer Nature
Page : 354 pages
File Size : 43,9 Mb
Release : 2019-11-21
Category : Science
ISBN : 9783030051891

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Plasma Catalysis by Xin Tu,J. Christopher Whitehead,Tomohiro Nozaki Pdf

This book provides a comprehensive overview of the field of plasma catalysis, regarded as a promising alternative to thermal processes for energy and environmental applications. It bridges the gap between the plasma and catalysis research communities, covering both the fundamentals of plasma catalysis and its application in environmental and energy research. The first section of the book offers a broad introduction to plasma catalysis, covering plasma-catalyst systems, interactions, and modeling. The core of the book then focuses on different applications, describing a wide range of plasma-catalytic processes in catalyst synthesis, environmental clean-up, greenhouse gas conversion and synthesis of materials for energy applications. Chapters cover topics ranging from removal of NOx and VOCs to conversion of methane, carbon dioxide and the reforming of ethanol and methanol. Written by a group of world-leading researchers active in the field, the book forms a valuable resource for scientists, engineers and students with different research backgrounds including plasma physics, plasma chemistry, catalysis, energy, environmental engineering, electrical engineering and material engineering.

Author : Isabella Nova,Enrico Tronconi
Publisher : Springer Science & Business Media
Page : 716 pages
File Size : 53,9 Mb
Release : 2014-03-14
Category : Science
ISBN : 9781489980717

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Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts by Isabella Nova,Enrico Tronconi Pdf

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.

Author : Joseph R. Theis
Publisher : Unknown
Page : 442 pages
File Size : 55,8 Mb
Release : 2006
Category : Electronic
ISBN : UOM:39015064783825

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A Lean NOx Trap+Selective Catalytic Reduction System for Controlling the NOx Emissions from a Diesel Engine by Joseph R. Theis Pdf

Author : G. Amba Prasad Rao,T. Karthikeya Sharma
Publisher : CRC Press
Page : 448 pages
File Size : 54,7 Mb
Release : 2020-06-09
Category : Science
ISBN : 9781000448993

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Engine Emission Control Technologies by G. Amba Prasad Rao,T. Karthikeya Sharma Pdf

This new volume covers the important issues related to environmental emissions from SI and CI engines as well as their formation and various pollution mitigation techniques. The book addresses aspects of improvements in engine modification, such as design modifications for enhanced performance, both with conventional fuels as well as with new and alternative fuels. It also explores some new combustion concepts that will help to pave the way for complying with new emission concepts. Alternative fuels are addressed in this volume to help mitigate harmful emissions, and alternative power sources for automobiles are also discussed briefly to cover the switch over from fueled engines to electrics, including battery-powered electric vehicles and fuel cells. The authors explain the different technologies available to date to overcome the limitations of conventional prime movers (fueled by both fossil fuels and alternative fuels). Topics examined include: • Engine modifications needed to limit harmful emissions • The use of engine after-treatment devices to contain emissions • The development of new combustion concepts • Adoption of alternative fuels in existing engines • Switching over to electrics—advantages and limitations • Specifications of highly marketed automobiles • Emission measurement methods

Author : Akhilendra Pratap Singh,Avinash Kumar Agarwal
Publisher : Springer Nature
Page : 269 pages
File Size : 42,7 Mb
Release : 2021-06-14
Category : Technology & Engineering
ISBN : 9789811615825

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Novel Internal Combustion Engine Technologies for Performance Improvement and Emission Reduction by Akhilendra Pratap Singh,Avinash Kumar Agarwal Pdf

This monograph covers different aspects of internal combustion engines including engine performance and emissions and presents various solutions to resolve these issues. The contents provide examples of utilization of methanol as a fuel for CI engines in different modes of transportation, such as railroad, personal vehicles or heavy duty road transportation. The volume provides information about the current methanol utilization and its potential, its effect on the engine in terms of efficiency, combustion, performance, pollutants formation and prediction. The contents are also based on review of technologies present, the status of different combustion and emission control technologies and their suitability for different types of IC engines. Few novel technologies for spark ignition (SI) engines have been also included in this book, which makes this book a complete solution for both kind of engines. This book will be useful for engine researchers, energy experts and students involved in fuels, IC engines, engine instrumentation and environmental research.

Author : Steven L Suib
Publisher : Newnes
Page : 630 pages
File Size : 40,7 Mb
Release : 2013-07-17
Category : Technology & Engineering
ISBN : 9780444538710

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New and Future Developments in Catalysis by Steven L Suib Pdf

New and Future Developments in Catalysis is a package of seven books that compile the latest ideas concerning alternate and renewable energy sources and the role that catalysis plays in converting new renewable feedstock into biofuels and biochemicals. Both homogeneous and heterogeneous catalysts and catalytic processes will be discussed in a unified and comprehensive approach. There will be extensive cross-referencing within all volumes. The various sources of environmental pollution are the theme of this volume. The volume lists all current environmentally friendly catalytic chemical processes used for environmental remediation and critically compares their economic viability. Offers in-depth coverage of all catalytic topics of current interest and outlines future challenges and research areas A clear and visual description of all parameters and conditions, enabling the reader to draw conclusions for a particular case Outlines the catalytic processes applicable to energy generation and design of green processes

Author : United States. Congress. House. Committee on Science. Subcommittee on Energy and Environment
Publisher : Unknown
Page : 1496 pages
File Size : 49,5 Mb
Release : 1999
Category : Science
ISBN : LOC:00064855815

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Reducing Sulfur in Gasoline and Diesel Fuel by United States. Congress. House. Committee on Science. Subcommittee on Energy and Environment Pdf

Author : W. Addy Majewski,Hannu Jääskeläinen
Publisher : SAE International
Page : 1135 pages
File Size : 46,9 Mb
Release : 2023-12-20
Category : Technology & Engineering
ISBN : 9781468605709

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Diesel Emissions and Their Control, 2nd Edition by W. Addy Majewski,Hannu Jääskeläinen Pdf

Engineers, 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)