Assumptions to the Annual Energy Outlook 2003

 

Table 44.    NOx Emissions Standards
                    (Pounds per million Btu)

Boiler Type

# Boilers

Phase I Limit

Phase II Limit

Group 1 Boilers

     

  Dry Bottom Wall-Fired

284

0.50

0.45

  Tangential

296

0.45

0.38

Group 2 Boilers

     

  Cell Burners

35

NA

0.68

  Cyclones

88

NA

0.94

  Wet Bottom Wall-Fired

38

NA

0.86

  Vertically Fired

29

NA

0.80

  Fluidized Bed

5

NA

0.29

NA = Not Applicable.
Source: Environmental Protection Agency, Nitrogen Oxide Emission Reduction Program.