Encyclopedia of Environmental Science and Engineering, Volume I and II

756 NITROGEN OXIDES REDUCTION

Oxygen in Fluegas (Excess Air),%

2 (9.5)

3 (15)

5 (28)

7 (45)

9 (68)

11 (100)

13 (148)

15 (229)

1000

100

10

0.01

E (PPMV, DRY)

0.1 1

X (LB/MBtu, HHV)

US EPA^1

US EPA^2 ,

US EPA^4 NJ DEP^3

NYS DEC^6

NJ DEP^7

NYS DEC^5 ,

NJ DEP

(0.7)

(0.6)

(0.55)

(0.42)

(0.38)

(0.5)

(0.45)

(^1) - NSPS - Subpart D - > 250 MBtu/hr
(^2) - NSPS - Subpart Da - > 250 MBtu/hr
(bituminous & anthracite coal)
(^3) - Dry bottom cyclone utility boilers
(^4) - NSPS - Subpart Da - > 250 MBtu/hr
(subbituminous coal)
(^5) - Dry bottom wall utility boilers
(^6) - Dry bottom tangential boilers
(^7) - Dry bottom tangential utility boilers
FIGURE 4 Conversion of emission units and comparison of various standards for NOx coal-fired units.
C014_002_r03.indd 756C014_002_r03.indd 756 11/18/2005 1:26:54 PM11/18/2005 1:26:54 PM