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Improvements in diesel engine design to reduce particulate emissions levels, and a recent Environmental Protection Agency (EPA) ruling limiting the maximum sulfur content in diesel fuel, enhanced the viability of catalytic aftertreatment for this market. The Department of Emissions Research, Southwest Research Institute (SwRI), under contract from the Engine Manufacturers Association, (EMA), conducted a search to identify flow-through catalyst technologies available to reduce particulate emissions without trapping. The search revealed a variety of catalyst formulations, washcoats, and substrate designs which were screened on a light-duty diesel. Based on the performance of eighteen converters evaluated, several designs were selected to continue experimentation on a modern technology heavy-duty diesel engine.

This book will assist readers in meeting today's tough challenges of improving diesel engine emissions, diesel efficiency, and public perception of the diesel engine. It can be used as an introductory text, while at the same time providing practical information that will be useful for experienced readers. This comprehensive book is well illustrated with more than 560 figures and 80 tables. Each main section is broken down into chapters that offer more specific and extensive information on current issues, as well as answers to technical questions.