Catalytic NOx Control Technologies for Diesel and GDI Engines

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.

What Will You Learn

By participating in this web seminar, 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

Is This Course 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.

Materials Provided

This data is not available at this time

Course Requirements

*Global toll-free telephone numbers are provided for many countries outside the U.S., but are limited to those on the WebEx call-in toll-free number list. Check here to see if your country has a global call-in toll free telephone number for this web seminar. If your country is not listed, you may still connect using the US/Canada Call-in toll number or Voice over Internet Protocol (VoIP).

Although WebEx Training Manager will automatically launch when you join the web seminar, you or your system administrator are encouraged to download the plug-in in advance to help ensure successful setup. Click here, then follow the onscreen instructions.

Topics

Session 1
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
Session 2
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
Session 3
SCR Catalyst Design Mobile Applications
  • Passenger cars
  • Heavy duty systems
  • Auxiliary equipment design
  • Sensor performance
  • Catalyst durability