This section applies beginning no later than the compliance dates specified in § 63.100(k)(11) . In order to demonstrate compliance with the emission limits and work practice standards specified in § 63.113(j) (for process vents in ethylene oxide service) and § 63.119(a)(5) (for storage vessels in ethylene oxide service), owners and operators must meet the requirements specified in paragraphs (a) and (b) of this section.
EQUATIONS 1 AND 2 TO PARAGRAPH (A)(2)(III)
E,inlet = K C,inlet M Qinlet (Eq. 1)
E,outlet = K C,outlet M Qoutlet (Eq. 2)
Where:
E,inlet, E,outlet = Mass rate of ethylene oxide at the inlet and outlet of the control device, respectively, kilogram per hour.
C,inlet, C,outlet = Concentration of ethylene oxide in the gas stream at the inlet and outlet of the control device, respectively, dry basis, parts per million by volume.
M = Molecular weight of ethylene oxide, 44.05 grams per gram-mole.
Qinlet, Qoutlet = Flow rate of the gas stream at the inlet and outlet of the control device, respectively, dry standard cubic meter per minute.
K = Constant, 2.494 * 10-6 (parts per million)-1 (gram-mole per standard cubic meter) (kilogram per gram) (minutes per hour), where standard temperature (gram-mole per standard cubic meter) is 20 °C.
EQUATION 3 TO PARAGRAPH (A)(2)(IV)
Percent reduction = (E,inlet -E,outlet)/E,inlet * 100 (Eq.3)
Where:
E,inlet, E,outlet = Mass rate of ethylene oxide at the inlet and outlet of the control device, respectively, kilogram per hour, calculated using Equations 1 and 2 to paragraph (a)(2)(iii) of this section.
40 C.F.R. §63.124