Control of Volatile Organic Compounds Emissions from Manufacturing

(9 CE = AC - (0.9 ~
CDnA
~ x eRC) d
I,
AC = annualized costs, $/yr
,,,,, ,
0.9 = efficiency of col lecti ng recovered styrene
ERed = annual emission reduction, Mg/yr
RC = recovery credit, $/Mg of styrene recovered
I
In cal culati ng the cost effectiveness numbers and the uncontroll ed
emission rates for the "across line" analysis,. costs were initi a1 l y I
developed for two uncontrolled emission rates: 0.2 kg VOC/Mg product
and 0.15 kg VOC/Mg product. The resulting costs are summarized in
I I
I I
Table F-6. I I
As seen in Table F-6, the uncontrolled emission rates associated
with $1,00O/Mg, $2,00O/Mg, and $3,00O/Mg lie between 0.2 and 0.15 kg
VOC/Mg product. Using the general equation (9) ablove and assuming that
refrf geration electricity and recovery credit vary proportional ly with Iemission
rate, the following equation is developed:
where: AC' = Constant costs associated with an uncontrolled emi siion
rate of 0.15 kg VOC/Mg product
RElec = Refrigeration electricity associated with an uncontrol led
emission rate of 0.2 kg VOC/Mg product
RElec' = Refrigeration electricity associated with an uncont/ol led
emission rate of 0.15 kg VOC/Mg product
RC
= Recovery credit, $/yr, associated with an uncontrol ied
emission rate of 0.2 kg VOC/Mg product
RC' = Recovery credit, y , associated with an uncontrol led
I
ERed = Annual emission reduction associated with an uncont{ol led
emission rate of 0.2 kg VOC/Mg product
ERed' = Annual emission reduction a with an uncontrol 1 ed
ER
emission rate of 0.15 kg VO
= Emission rate to be solved
uct
I
I
I
I
I
I
I
I
I