Is Your Stationary Engine Compliant to EPA's NESHAP 2013?

In February, 2010, the EPA provided a final ruling on National Emission Standards for Hazardous Air Pollutants (NESHAP) for Reciprocating Internal Combustion Engines (RICE). This ruling effects existing stationary diesel engines.

The rule is intended to reduce emissions of toxic air pollutants such as formaldehyde, acetaldehyde, acrolein, methanol and other air toxics from several categories of previously unregulated stationary engines.

Engines Affected By EPA's NESHAP Ruling

The rule is applicable to following categories of diesel engines:

  • Engines used at "area sources" of air toxics emissions and constructed or reconstructed before June 12, 2006
  • Engines used at "major sources" of air toxics emissions, have a site rating of less than or equal to 500 hp, and constructed or reconstructed before June 12, 2006
  • Engines used at "major sources" of air toxics for non-emergency purposes, have a site rating of greater than 500 hp, and constructed or reconstructed before December 19, 2002

"Major sources" of air toxics are defined as those that emit 10 short tons per year of a single air toxic or 25 short tons per year of a mixture of air toxics. "Area sources" are those sources that are not "major sources."

Ruling Requirements

The affected stationary diesel engines must comply with CO emission limits or must be fitted with emission controls, such as diesel oxidation catalysts, to reduce CO emissions by 70%.

The rule also requires the use of ultra-low sulfur diesel fuel for stationary non-emergency engines greater than 300 hp with a displacement of less than 30 liters per cylinder. The regulation will be fully implemented by 2013.

The regulation includes a number of other provisions, including work practices for engine operators. Stationary engines above 300 hp must also be equipped with closed or open crankcase filtration system in order to reduce metallic HAP emissions. While the regulation does not mandate the emission control technology, the EPA designed the standards based on the capabilities of the diesel oxidation catalyst (DOC).

EPA Compliant Emission Control Products

If you are affected by the EPA NESHAP ruling, Universal Emission Technologies can help. Universal provides:

  • a vast complement of standard emission control product under the GreenShield brand.
  • a full staff of application engineers to take you through the process to determine if you need an emission control device or determine which catalyst type is appropriate.

More Information & Resources