Regulatory Text: 
Section 112.7.  Allowable Emission Rates - Sulfur Recovery Plant.

(Approved by EPA 08/30/93 (58 FR 45457) at 52.2270(c)(76) effective 10/29/93.)

   (a) No person may cause, suffer, allow, or permit emissions of sulfur dioxide from any sulfur recovery plant to exceed the emission limits specified for stack effluent flow rates less than or equal to 4,000 standard cubic feet per minute (scfm) as determined by the equation:

E = 123.4 + 0.091 q

and the emission limits, specified for stack effluent flow rates in excess of 4,000 scfm, as determined by the equation: 

E = 0.614 q^0.8042 

Where:
E = allowable emission rate in pounds per hour
q = stack effluent flow rate in scfm


   (b) If a source has an effective stack height less than the standard effective stack height determined for stack effluent rates less than or equal to 4,000 scfm by the equation:

He = 7.4 (123.4 + 0.091 q)^0.5

and determined for stack effluent rates greater than 4,000 scfm, by the equation:

He = 5.8 q^0.402

Where:
He = standard effective stack height in feet
q = stack effluent flow rate in scfm

then, the allowable emission limit in subsection (a) of this section must be reduced by multiplying it by the short-stack reduction factor.

As adopted by TACB 09/18/92 effective 10/23/92