The dramatic evolution of catalytic converters in the last thirty years was a result of a need worldwide to reduce pollution created by the exhaust gases of internal combustion engines. Environmental concerns have led American, Japanese and European Union (EU) legislation to pose continuously stricter emission limits for petrol engines in the last decades. The catalytic converter has become the most important means of exhaust treatment to achieve the desired emission limits. The international legislation has also created a need for a regular assessment of the efficiency of the catalytic converter in order to detect a deterioration of its conversion efficiency as soon as this deterioration takes place. The assessment of conversion efficiency of a catalytic converter can take place during normal driving of a vehicle (on-board diagnosis or OBD) or in a workshop by specialized technicians. The most important methods nowadays are the OBD methods. The evolution of methods concerned with OBD and non-OBD monitoring and diagnosing of efficiency of catalytic converters of internal combustion engines is described based on patents and published patent applications. Non-patent references are also used. The basic principles of modern catalytic converters are described in an extensive Introduction, where the importance of monitoring and diagnosing the efficiency of catalytic converters is demonstrated. The book is divided into four parts. The first part describes methods involving the use of oxygen or air/fuel exhaust gas sensors to determine the oxygen storage capacity of a catalytic converter. The second part describes methods involving the use of temperature sensors to determine the exothermic reaction capacity of a catalytic converter. The third part describes all other methods existing in patent literature that monitor and diagnose the efficiency of catalytic converters. The great majority of the methods of the third part involves exhaust gas concentration measurements. The fourth part comprises a general discussion of all methods described. In the beginning of each part, a short introduction is given to explain the problem that the methods attempt to solve. The methods in each part are presented in chronological order per patent applicant. This helps to evaluate how the patent applicant has improved his methods over time. A patent number index with information about the patent applicants, inventors, priorities and patent-families, an inventor index, a company index and a subject index can be found at the end of the book.
Combustion has played a central role in the development of our civilization which it maintains today as its predominant source of energy. The aim of this book is to provide an understanding of both fundamental and applied aspects of low-temperature combustion chemistry and autoignition. The topic is rooted in classical observational science and has grown, through an increasing understanding of the linkage of the phenomenology to coupled chemical reactions, to quite profound advances in the chemical kinetics of both complex and elementary reactions. The driving force has been both the intrinsic interest of an old and intriguing phenomenon and the centrality of its applications to our economic prosperity. The volume provides a coherent view of the subject while, at the same time, each chapter is self-contained.
Fossil hydrocarbons form a continuous series whose"heavy"members--heavy oils, bitumens, oil shale kerogens, and coal--are important sources of conventional lighter fuels. These hydrocarbons are much more abundant and easier to extract than natural gas and oil. This book discusses the origins and compositions of fossil hydrocarbons and shows how the"heavies"can be chemically transformed into environmentally clean gas, liquid transportation fuels, and an almost unlimited range of petrochemicals.Dr. Berkowitz explodes the entrenched dichotomy between"petroleum hydrocarbons"and coal that has shaped popular perceptions of energy, showing that it is feasible to develop new technologies that capitalize on the availability of"synthetic"natural gas and light oils.Fossil Hydrocarbons: Chemistry and Technology is a comprehensive treatment of fossil hydrocarbons, covering the source materials, biosources, metamorphic histories, geochemistry, classification, and molecular structure. It discusses the use of fossil hydrocarbons as a viable energy source in our future, detailing the preparation, processing and conversion technologies, as well as discussing the environmental issues that arise from production, processing, and use of various fossil hydrocarbons.
This volume contains papers presented at the 8th International Conference on Coal Science, held in Oviedo, Spain, September 10-15, 1995. Volume I contains papers dealing with Fundamentals and General Aspects, Combustion and Gasification and Pyrolysis and Carbonization. Volume II covers papers discussing Liquefaction and Hydropyrolysis and Coal and the Environment.The scope of topics covered will give the reader a state-of-the-art impression of coal characterization and depolymerization, coal-derived carbons, coal carbonization and liquefaction, and the progress towards making coal an environmentally acceptable fuel during its combustion in electricity production. The use of modern physicochemical characterization techniques has advanced knowledge of coal composition and structure enormously in the last twenty years, and it is hoped that coal will enter into the next millenium as a clean and efficient fuel.
Providing a comprehensive survey of the origin, the fundamental properties, and the technology of utilization of the lignites of North America, this book will be of particular interest to professional scientists and engineers working in coal research or coal technology. Coals display a continuum of properties, often with no sharp, steep change between ranks and thus the book restricts the discussion strictly to lignites (with the occasional comparisons with other coals).There is a very extensive index, making the contents of the book easily accessible to the reader.
Lamb's Questions and Answers on the Marine Diesel Engine is a comprehensive reference book for Marine Engineers and all seekeing a working knowledge of the marine diesel engine. This fully revised eighth edition has been completely rewritten. New coverage includes super-longstroke and slow-speed engines, and a new generation of medium-speed engines burning lower quality fuels. New purifier systems for fuel treatment, and the testing of fuel and lubrication oils on board ship are also discussed.
Those connected with the petroleum industry will need no introduction to The Petroleum Handbook. It is a technically-oriented manual whose aim is to provide explanations of the processes of today's petroleum industry, from crude oil exploration to product end use, with some historical background and explanation of the economic context in which the oil, gas and petrochemical businesses operation. Much of the material in this sixth edition is completely new and includes the latest information on world oil and gas reserves, future prospects, transportation, storage, refining, marketing, research, and environmental conservation.