Control of Volatile Organic Compounds Emissions from Manufacturing

Tab1e 4-4. MODEL PLANT ENVIRONMENTAL ANALYSIS BASED -ON RECOMMENDATIONS FOR RACT
Model Plant Model Plant
Model Plant Uncontrolled Existing VOC Projected Projected Control led VOC
Polymer Process . VOC Emission Rate, Mglyra Emission Rate, Mglyr a Control Control Emission Rate, Mg/yr
Section All Streams RACT Streams A11 Streams RACT Streams Device(s) Efficiency A1 1 Streams RACT Streams
Polypropylene RMP 10 0 10 0 Flare, 10 0
PR 574 574 57.4 57.4 Incinerator, 98% 11.5 11.5
MR 4.224 4.224 422.4 422.4 or Boiler 84.5 84.5
P F ~ 367 367 7.3 7.3
TOTAL PLANT - 857 847 In- iin-
High-Density RMP 43 0 Flare, 4 0
Polyethylene MR 2,718 272 Incinerator, 98% 54.4 54.4
PFC 2 87 or Boiler 1.7 1.7
TOTAL PLANT - 2,847 359 60 46
Polystyrene md
P (styrene 8.8 8.8 8.8 8.8
I in air)
U3
MR e
(styrene 227 227 227 227 Condenser 96.lf 8.8
in steam)
PF - 11 - 0 -11 - 0
TOTAL PLANT
- styrene
in air
- styrene
in steam
a Based on 90 percent assumed existing control efficiency applied to the following streams: for polypropylene, streams 6, C,
0, E, and F; for high-density polyethylene, streams A and D.
b Including stream 6, dryer vent, at 0.6 kg VOC/1,000 kg product.
C
Including stream B, dryer vent, at 0.4 kg VOC/1,000 kg product.
d
Including stream B, devolatilizer condenser vent, at 0.06 kg VOC/1,000 kg product and strean C, styrene recovery unit
condenser vent, at 0.06 kg VOC/1,000 kg product.
e
Including stream B, devolatilizer condenser vent, at 2.96 kg VOC/1,000 kg product and stream C, styrene recovery unit
condenser vent, at 0.13 kg VOC/1,000 kg product.
f
For a reduction from upper end of range of emission factors (as noted in footnote e) totaling 3.09 kg VOC/1,000 kg for RACT
streams to 0.12 kg VOC/1,000 kg product.