Engine Exhaust Aftertreatment Aging

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Available online anytime


Course Overview

Although the concept of internal combustion engine exhaust aftertreatment has been around since the 1950’s, vital improvements are made daily.  Continued emission regulations place emphasis on engine aftertreatment systems.  Upon completion of this course, learners will:

  • Have a foundation in the fundamentals of automotive catalysis for both spark-ignited gasolineand compression-ignited diesel engines.
  • Be able to describe how various anatomy of an exhaust aftertreatment component ages.
  • Understand the thermal, chemical and physical modes of deactivation in multiple engine designs.
  • Be armed with regeneration methodologies to counteract deactivation modes.
  • Gain a basis for accelerated aging for both gasoline and diesel catalysts.

Ultimately, this course will arm learners with critical knowledge of exhaust aftertreatment aging for both spar and compression ignited, internal combustion engines.

Who Should Attend?

Those wanting to gain deeper knowledge on exhaust aftertreatment applications, impacts, considerations and design. Learners seeking a deeper look at both spark-ignited and compression-ignited catalysis in automotive applications.  The content in this intermediate course appeals to engineers, engineering students, ICE enthusiasts and management responsible for overall aftertreatment design.

Course Outline

Module 1 – Catalysis 101

Module 2 – Spark Ignited Gasoline Aftertreatment

Module 3 – Compression Ignition Diesel Aftertreatment

Module 4 – Catalyst Aging Mechanisms: Thermal

Module 5 – Catalyst Aging Mechanisms: Chemical

Module 6 – Catalyst Aging Mechanisms: Physical

Module 7 – Accelerated Aging – Gasoline Aftertreatment

Module 8 – Accelerated Aging – Diesel Aftertreatment


Scott Eakle

Mr. Eakle is experienced in engine exhaust aftertreatment research and development and integration of such systems with engine management systems. Project work has included the development, modeling, evaluation, and integration of various aftertreatment systems for both gasoline and diesel applications, including particulate filters, Selective Catalytic Reduction (SCR), oxidation catalysts, as well as combined technologies such as SCR on filter. Mr. Eakle has derived numerous accelerated aging protocols for gasoline, CNG, and diesel aftertreatment devices that replicate real-world deactivation mechanisms. Modeling efforts include prediction of urea derived deposits in SCR systems. Mr. Eakle has commissioned numerous test stands capable of completing various forms of aftertreatment performance and durability studies. He has also set up controls on engines and burner systems to demonstrate accelerated aging of engine aftertreatment systems. Mr. Eakle also manages the division burner activities that cover aftertreatment durability testing and evaluations on SwRI’s ECTO-LabTM burner system. In addition to aftertreatment evaluation activities, Mr. Eakle is currently managing the Advanced Combustion, Catalyst and Aftertreatment Technologies (AC2AT) consortium. Mr. Eakle attended Colorado State University (CSU) where his research focused on a method to use non-thermal plasmas (NTP) in reducing NOx emissions for mobile and stationary lean burn engines. He has co authored many publications, received two SwRI Office of Automotive Engineering DMAC Mentor Awards and is a current member of the Society of Automotive Engineers.

Upcoming dates (1)

Program Director

Blake Suhre

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