Access Period: 30 Days
Duration: 6 Hours
Lean burn engines (diesel and GDI) boast higher fuel economy and cleaner emissions than conventionally tuned engines while producing equivalent power. They employ higher combustion chamber compression ratios, significant air intake swirl and precise lean-metered direct fuel injection. The downfall of lean-burn technology, however, is increased exhaust NOx emissions (due to higher heat and cylinder pressure) and a somewhat narrower RPM power-band (due to slower burn rates of lean mixtures). Removal of NOx from exhausts is a critical need for emission standards and ambient ozone requirements.
This three session web seminar will examine the various catalytic processes for lean burn applications, including Selective Catalytic NOx Reduction (SCR), NOx Trap Technologies (i.e. LNT, NSR), and the combination of SCR, NOx Trap and Hydrocarbon NOx Reduction (LNC). It will focus in on SCR NOx fundamentals, equipping participants with the basic concepts for NOx control and important design parameters for SCR NOx catalyst. The course will examine the system design for SCR in diesel applications including passenger cars and heavy duty trucks, including SCR catalysts, SCR integration with diesel particulate filter, key sensor development catalyst durability issues and urea control.
Is this Web Seminar RePlay for You?
This web seminar will be especially valuable for mechanical, metallurgical and chemical engineers, materials scientists, and chemists involved in the design, operation and calibration of a NOx emission control system for both mobile and stationary source applications, such as automobiles, trucks, buses, ships, locomotives, stationary engines, small engines, etc. It will also help the newly hired engineer assigned to an emission control team, the seasoned veteran who just transferred to the emission control group, sales people responsible for emission controls, plant managers concerned about meeting new regulations with catalytic controls, and regulators now involved in transmission technologies.
Participants should have a basic familiarity with automotive emissions for gasoline engines, diesel engines or off-road applications. The Fundamentals of Catalytic Converter Integration for Emission Control Web Seminar RePlay, is a recommended prerequisite for those with less than three years of experience with catalytic converters.
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Click on the Requirements tab to make sure you are properly equipped to interact with this course.0.6 CEUs
By participating in this course, you will be able to:
- Define NOx catalysis and identify key acronyms
- Describe in-use issues
- Cite key elements in NOx catalyst design for diesel applications
- Define SCR design for passenger cars and heavy duty applications
- Identify available sensors for SCR catalyst performance monitoring
- Determine where lean NOx traps may be appropriate versus SCR NOx control
Lean NOx Catalysis
- NOx reduction catalytic approaches
- Lean NOx reduction fundamentals
- Hydrocarbon NOx reduction (LNC)
- NOx traps technologies (LNT, NSR or NAC)
- SCR Cataytic NOx reduction (ammonia based)
- Combination SCR/NOx traps
SCR NOx Catalyst
- SCR NOx catalytic approaches (Vanadia and Zeolite)
- Performance characteristics of SCR NOx catalysts (Vanadia and Zeolite)
- Comparison of commercial issues with lean NOx traps and SCR
SCR Catalyst Design Mobile Applications
- Passenger cars
- Heavy duty systems
- Auxiliary equipment design
- Sensor performance
- Catalyst durability
Instructor(s): Ronald Heck
Dr. Ron Heck is currently an independent consultant. Prior to that, Ron was a research manager responsible for developing catalyst technology for Engelhard Corporation. He has worked on the development of catalytic processes in SCR NOx, NSCR NOx, automotive catalyst, diesel catalyst, PremAirTM catalyst systems, hydrogenation technology, ozone abatement, volatile organic compound abatement, ammonia oxidation, chemical feedstock purification and chemical synthesis. Ron is a member of American Men and Women of Science and Who's Who in Technology Today. He is an SAE Fellow and a recipient of the SAE Forest R. McFarland. He was a co-instructor for courses for the SAE in automotive emission control catalysis and diesel emission control catalysis. He was a member of the Scientific Advisory Board of the Strategic Environmental R&D Program for environmental studies in the Department of Defense. Ron has been involved in over 80 publications in commercial applications of catalysts and holds 36 U.S. patents on catalytic processes. He is the co-author of the book with Dr. Farrauto entitled"Catalytic Air Pollution Control: Commercial Technology" and is the former co-editor of the NewsBrief section of Applied Catalysis B: Environmental. Ron and his former research team from Engelhard received the 2004 Thomas Alva Edison Patent Award from R&D Council of New Jersey for the invention of close coupled catalyst technology for ultra low emission gasoline vehicles. Ron received his B.S. in Chemical Engineering and his Ph.D. from the University of Maryland.
- 30 days of online access (from date of purchase) to the approximately six hour recorded presentation
- Course workbook (downloadable, .pdf's)
- Online learning assessment
- Instructor follow up to your content questions
- .6 CEUs* (with satisfactory assessment score)
SAE Web Seminar RePlays are audio/visual captures of live web seminars. The course sessions are unedited to include the results of interactions with the live participants and to expedite course availability. A learning assessment is available at the end of the course to reinforce learning and retention and gauge your understanding of the topic.
- Windows 7, 8 (Apple OSX and Unix/Linux are not supported but may work)
- Pentium 4 PC
- Minimum 512 MB RAM; recommended 1 GB RAM
- Internet Explorer 10-11, Mozilla Firefox 37 , Google Chrome 42 (Safari and Opera are not supported)
- Broadband-1Mbps minimum