Download or read book Automobile Catalytic Converters written by Kathleen C. Taylor and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of catalytic converters for the purification of automotive exhaust gases is a relatively new technology which was brought into existence by social pressures for the preservation of acceptable environmental conditions. The majority of catalytic practitioners have been able to watch the growth of this technology from its inception to its current state of sophistication. Automotive catalytic converter technology is now in a mature state, and this chapter from Vol. 5 Catalysis: Science and Technology by Dr. K. C. Taylor provides a review which covers both the process chemistry and the most important converter design factors. Contents 1. Introduction. . . . . . . . . . . . . . 2. Emission Regulations in the United States. 3. Exhaust Emission Characteristics. . 3 4. 1981 Emission Control Technology. 5 A. Converters. . . 5 B. Control System. 7 8 ~. Catalyst Screening . 6. Laboratory Testing. .10 7. The Chemical Reactions 13 8. Composition of Three-Way Catalysts. 16 A. Rhodium 17 21 B. Platinum. C. Palladium 22 D. Iridium . 22 23 E. Ruthenium and Nickel. F. Cerium Oxide ..... 23 G. Search for Alternatives to Nohle Metals 24 9. Catalyst Supports . 25 A. Pellets .... 26 B. Monoliths . . 26 10. The Transient Behavior of Three-Way Catalysts 27 II. Deterioration of Three-Way Catalysts. 35 A. Thermal Effects. . . . 35 B. Phosphorus Poisoning. . . 37 C. Lead Poisoning. . . . . . · 38 D. Catalyst Poisoning by Sulfur · 40 12. The 0.4 NO,; Research Objective. · 41 13. Control of Diesel Particulate Emissions.

Download or read book Non Noble Metal Fuel Cell Catalysts written by Zhongwei Chen and published by John Wiley & Sons. This book was released on 2014-04-03 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written and edited by top fuel cell catalyst scientists and engineers from both industry and academia, this is the first book to provide a complete overview of this hot topic. It covers the synthesis, characterization, activity validation and modeling of different non-noble metal electrocatalysts, as well as their integration into fuel cells and their performance validation, while also discussing those factors that will drive fuel cell commercialization. With its well-structured approach, this is a must-have for researchers working on the topic, and an equally valuable companion for newcomers to the field.

Download or read book The Role of the Chemical Sciences in Finding Alternatives to Critical Resources written by National Research Council and published by National Academies Press. This book was released on 2012-06-30 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chemical Sciences Roundtable (CSR) was established in 1997 by the National Research Council (NRC). It provides a science oriented apolitical forum for leaders in the chemical sciences to discuss chemistry-related issues affecting government, industry, and universities. Organized by the National Research Council's Board on Chemical Sciences and Technology, the CSR aims to strengthen the chemical sciences by fostering communication among the people and organizations - spanning industry, government, universities, and professional associations - involved with the chemical enterprise. One way it does this is by organizing workshops that address issues in chemical science and technology that require national attention. In September 2011, the CSR organized a workshop on the topic, "The Role of Chemical Sciences in Finding Alternatives to Critical Resources." The one-and-a-half-day workshop addressed key topics, including the economic and political matrix, the history of societal responses to key mineral and material shortages, the applications for and properties of existing minerals and materials, and the chemistry of possible replacements. The workshop featured several presentations highlighting the importance of critical nonfuel mineral and material resources in history, catalysis, agriculture, and electronic, magnetic, and optical applications. The Role of the Chemical Sciences in Finding Alternatives to Critical Resources: A Workshop Summary explains the presentations and discussions that took place at the workshop. In accordance with the policies of the NRC, the workshop did not attempt to establish any conclusions or recommendations about needs and future directions, focusing instead on issues identified by the speakers.

Download or read book Recent Trends in Product Design and Intelligent Manufacturing Systems written by B.B.V.L. Deepak and published by Springer Nature. This book was released on 2022-10-05 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select proceedings of the 3rd Innovative Product Design and Intelligent Manufacturing System (IPDIMS 2020), held at National Institute of Technology (NIT) Rourkela, 30–31 December 2021. This volume covers the latest research topics in design and manufacturing fields of engineering. Some of the themes covered include Industry 4.0, smart manufacturing, advanced robotics and CAD/CAM/CIM. This book will be useful for students, researchers and professionals in the disciplines of mechatronics, mechanical, manufacturing, production and industrial engineering, especially those working on improvements in manufacturing technologies and development of resilient infrastructure in industry.

Download or read book New and Future Developments in Catalysis written by Steven L Suib and published by Newnes. This book was released on 2013-07-17 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book Technological Alternatives for the Conservation of Strategic and Critical Minerals cobalt Chromium Manganese and Platinum group Metals written by Russell J. Foster and published by . This book was released on 1985 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalysis written by John R. Anderson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalytic steam reforming has grown during the last two or three decades into one of the world's great catalytic processes. It is of major economic significance since the products from it form the feed for a number of other major processes. Nevertheless, catalytic steam reforming is a relatively difficult technology. It operates at high temperatures where problems of the maintenance of materials integrity and of catalyst stability and activity are severe, the establishment of high thermal efficiency of the plant is economically vital, and reactor operation is strongly influenced by mass and heat transport effects. The process is the subject of a thorough review by Dr. J. R. Rostrup-Nielsen who discusses both the basic cataly tic chemistry and the way in which this is interrelated with reactor and plant design. The use of catalytic converters for the purification of automotive exhaust gases is a relatively new technology which was brought into existence by social pressures for the preservation of acceptable environmental conditions. The majority of catalytic practitioners have been able to watch the growth of this technology from its inception to its current state of sophistication. Automotive catalytic converter technology is now in a mature state, and the chapter in this volume by Dr. K. C. Taylor provides a review which covers both the process chemistry and the most important converter design factors.

Download or read book Noble Metal And Base Metal Ion Substituted Ceo2 And Tio2 written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent times, as regulations and legislations for exhaust treatment have become more stringent, a major concern in the arena of environmental catalysis is to find new efficient and economical exhaust treatment catalysts. Chapter 1 is a review of the current status of various NOx abatement techniques and understanding the role of "auto-exhaust catalysts" involved therein. Chapter 2 presents the studies on synthesis of ionically substituted precious metal ions like Pd2+, Pt2+ and Rh3+ in CeO2 matrix and their comparative three-way catalytic performances for NO reduction by CO, as well as CO and hydrocarbon oxidation. Ce0.98Pd0.02O2-d showed better catalytic activity than ionically dispersed Pt or Rh in CeO2. The study in Chapter 3 aims at synthesizing 1 atom% Pd2+ ion in TiO2 in the form of Ti0.99Pd0.01O2-d with oxide ion vacancy. A bi-functional reaction mechanism for CO oxidation by O2 and NO reduction by CO was proposed. For NO reduction in presence of CO, the model based on competitive adsorption of NO and CO on Pd2+, NO chemisorption and dissociation on oxide ion vacancy fits the experimental data. The rate parameters obtained from the model indicates that the reactions are much faster over this catalyst compared to other catalysts reported in the literature. In Chapter 4 we present catalytic reduction of NO by H2 over precious metal substituted TiO2 (Ti0.99M0.01O2-d, where M = Ru, Rh, Pd, Pt) catalysts. The rate of NO reduction by H2 depends on the reducibility of the catalysts. Chapter 5 presents the studies on reduction of NO by NH3 in presence of excess oxygen. 10 atom % of first row transition metal ions (Ti0.9M0.1O2-d, where M = Cr, Mn, Fe, Co and Cu) were substituted in anatase TiO2 and TPD study showed that the Lewis and Bronsted acid sites are adsorption sites for NH3, whereas NO is found to dissociatively chemisorbed in oxide ion vacancies. The mechanism of the low temperature catalytic activity of the SCR and the selectivity of the products were stu.

Download or read book Substitute Catalysts for Platinum in Automobile Emission Control Devices and Petroleum Refining written by National Research Council (U.S.). Panel on Catalysts for Automotive Emission Devices and Petroleum Refining and published by National Academies. This book was released on 1973 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Precious Metals for Biomedical Applications written by Niklaus Baltzer and published by Elsevier. This book was released on 2014-05-07 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: Precious metals and semi-precious metals are used for an increasing number of medical applications due to the properties of these metals and their alloys. Precious Metals for Biomedical Applications reviews the properties of precious metals and their resulting applications in medicine. Part one outlines the fundamentals of precious metals for biomedical applications, discussing their useful properties, such as biocompatibility and corrosion resistance. Part two goes on to provide an overview of the applications of precious metals in biomedicine, including dental, therapeutic, tissue engineering, and bioimaging applications. It discusses the advantages of the structure and properties of precious metals for these applications. Precious Metals for Biomedical Applications is a key reference for material scientists and academics concerned with the properties and uses of these metals. - Provides a useful review of this group of materials' unique properties and applications - Examines the fundamentals of precious metals for biomedical applications, before looking at a wide range of applications of precious metals in medicine

Download or read book Noble and Precious Metals written by Mohindar Seehra and published by BoD – Books on Demand. This book was released on 2018-07-04 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of copper, silver, gold and platinum in jewelry as a measure of wealth is well known. This book contains 19 chapters written by international authors on other uses and applications of noble and precious metals (copper, silver, gold, platinum, palladium, iridium, osmium, rhodium, ruthenium, and rhenium). The topics covered include surface-enhanced Raman scattering, quantum dots, synthesis and properties of nanostructures, and its applications in the diverse fields such as high-tech engineering, nanotechnology, catalysis, and biomedical applications. The basis for these applications is their high-free electron concentrations combined with high-temperature stability and corrosion resistance and methods developed for synthesizing nanostructures. Recent developments in all these areas with up-to-date references are emphasized.

Download or read book Mineral Resource Economy 2 written by Floriant Fizaine and published by John Wiley & Sons. This book was released on 2022-01-26 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The challenges associated with the environmental impact of renewable energies are formidable and multiple. The exploitation of diffuse forms of energy will require us to reshape our lifestyles and infrastructures. Reducing their environmental impact is imperative and requires the mobilization of all available levers of action. Beyond the analysis of these challenges, this book presents an overview of the levers of action that should allow us to meet them, by crossing the fields of the human sciences, geosciences and engineering. The levers of action examined are both technical (through the substitution or use of low technology) and economic and social (through the development of recycling or decoupling). The book also addresses the question of their effectiveness and their overall impact.

Download or read book Information Technology for Education Science and Technics written by Emil Faure and published by Springer Nature. This book was released on with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Popular Science written by and published by . This book was released on 1974-10 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.

Download or read book Popular Mechanics written by and published by . This book was released on 1985-12 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Popular Mechanics inspires, instructs and influences readers to help them master the modern world. Whether it’s practical DIY home-improvement tips, gadgets and digital technology, information on the newest cars or the latest breakthroughs in science -- PM is the ultimate guide to our high-tech lifestyle.

Download or read book The Chevrolet Corvette written by Daniel Holt and published by SAE International. This book was released on 2005-04-11 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection chronicles the development of America's favorite sports car by the designers and engineers who made it happen. These 30 papers cover more than 50 years and six generations of the engineering, styling, and research and development of the Chevrolet Corvette. Twenty-two papers focus on the first five generations, with the last eight papers detailing the new sixth-generation Corvette. Material collected in this volume truly has unprecedented historical value. A 1954 paper by Maurice Olley presents a technical description of the first production Corvette. The book's preface includes insight from Zora Arkus-Duntov into the reasons behind the Corvette's development. Other highlights include comments from Corvette's chief engineer, a press release created by General Motors on its fiftieth anniversary, and a timeline with photos documenting the Corvette's evolution. Contents Includes: Preface Production Improves the Breed by Dennis Simanaitis Zora's Contribution to the Corvette by Dave McLellan Sports Car Development by Zora Arkus-Duntov McLellan's Corvette Era by Dave McLellan Comments from Corvette's Chief Engineer by David C. Hill Corvette People : GM Press Release Corvette Timeline by GM for the 50th Anniversary of the Corvette

Download or read book Precious Metals 1982 written by M.I. El Guindy and published by Elsevier. This book was released on 2013-10-22 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Precious Metals 1982 presents the variety of technical innovations in the application of precious metals. This book discusses the advances in recovery and refining and analysis of precious metals. Organized into 10 parts encompassing 47 chapters, this book begins with an overview of the fundamental experiments to elicit the mode of solidification for a small casting using the investment casting method. This text then describes the various medical uses of silver and its salts with the antibacterial properties of silver ions used in burn therapy, water purification, and to prevent infections. Other chapters consider the practical feasibility of a process involving the reaction of oxygen with gold particles in a potassium cyanide solution to produce potassium gold cyanide. This book discusses as well the major catalytic applications of the precious metals. The final chapter deals with fraud involving gold. This book is a valuable resource for engineers, metallurgists, geologists, jewelers, and goldsmiths.