Encyclopedia of Environmental Science and Engineering, Volume I and II

754 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 0.1 1

E (PPMV, DRY)

X (LB/MBtu, HHV)

NYC DEP^8

NYS DEC^2

NYC DEP^7

NYS DEC^3

US EPA^1 ,

NYS DEC^5

NYS DEC^6

US EPA^4

(0.2)

(100) (150)

(0.1)

(42)

(50)

(75-145)

TURBINES

BOILERS

• New Source Performance Standards (NSPS)


• 
  

  
  

  100 MBtu/hr in size
  -50 - 100 MBtu/hr in size

  
  

  
  
  • Depends on heat rate (NSPS)
  
  
  • Simple cycle and regenerative combustion turbines
  
  
  • Combined cycle combustion turbines
  
  

  
  

  
  

1

2

3

4

5

6

• 
  

  
  

  500 MBtu/hr in size, after 8/20/71

  
  

  
  


• 
  

  
  

  500 MBtu/hr in size, before 8/20/71

  
  

  
  

7

8

FIGURE 2 Conversion of emission units and comparison of various standards for NOx natural gas units.

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