1 April 2009

Two new urea-SCR systems for retrofitting of heavy-duty highway diesel engines have been added to the US EPA Emerging Technology List: the BlueMax 200 system by Nett Technologies, and the TermiNOx D system by Engine Control Systems (ECS). The applicability of the previously listed Nett BlueMax system for nonroad engines was also extended to cover more engine families.

The Emerging Technology List currently includes the following SCR systems:

  • TermiNOx D by ECS, applicable to MY1998-2006 highway, 4-stroke, heavy-duty diesel engines.
  • SCRT-1000 by Johnson Matthey, applicable to MY1994-2002 highway, 4-cycle, 250-500 hp heavy-duty diesel engines.
  • BlueMax by Nett Technologies—currently the only SCR system listed for mobile nonroad engines—applicable to MY1996-2008 nonroad, 4-cycle diesel engines in the 75-450 kW power range, originally certified to Tier 1-3 standards.
  • BlueMax 200 by Nett Technologies, applicable to MY1994-2006 highway, 4-stroke, heavy-duty diesel engines.

EPA “Emerging Technologies” are diesel emission control strategies that are still in the process of verification by EPA or the California Air Resources Board (ARB). The program can be considered a form of conditional verification, that quantifies the emission reductions and allows for commercial sales of the listed systems before the testing requirements of the verification program are fully satisfied.

The EPA Emerging Technology program will receive $20 million in Recovery Act grant funding.

Source: US EPA