DEQ-CFW_00087294

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2005 AIR EMISSIONS INVENTORY
BUTACITE® CHEMICAL REACTOR LINE
EMISSIONS SUMMARY
VOC
VOC EMISSIONS
EMISSIONS
PROCESS EMISSIONS:
(lb. / year)
(TYP)
BA Scrubbers
4482
2.24
VOC
VOC
VOC
EMISSIONS
EMISSIONS
EMISSIONS
Worst case
With 67%
With 67%
scenario based
Reduction for
Reduction for
on AP-42
"Good" control
"Good" control
FUGITIVE EMISSIONS:
(lb. / year)
(lb. / year)
(TYP)
Condensation Reactors / Vent
828
273
0.14
System
Charging System
16474
5436
2.72
Recirculation System
5207
1718
0.86
TOTAL EMISSIONS
11360
6.0
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11
EMISSIONS AIR INVENTORY
Emission Unit ID: BS-B
Emission source Description: ButaciteO Flake Reactors
A. Emission Estimation Approach
Emissions from the flake reactors include unreacted Butyraldehyde and residual
methanol in the PVA. (PVA contains a maximum of approximately 1.1 %
methanol.) Emissions are calculated on a per batch basis. Butyraldehyde vented
per batch is calculated based on the nitrogen sparging rate and the concentration of
Butyraldehyde in the vapor space. For methanol, it is assumed that it is all vented.
Emission Calculations
Butyraldehyde per batch
Sparging Time
N2 Flow During Sparging
Simulation model data
N2 Density ( lb. / cu. ft.)
Lbs. N2 to scrubber (lbs. NO
Lbs. BA in N2 purge (lbs. BA / lbs. N2)
Lbs. BA to scrubber (lbs. BA / batch)
= 30 Minutes
= 25 cfin
= 0.015 mole fraction BA in N2 during sparging
= PM/RT
(14.7 psia * 28 lb. / lb. —mole )
10.73 psia-cu. ft. /. ( lb.-mole-degR ) * 520 degR
= 0.07381bs. N2 / cu. ft.
= 25 fl / min * 0.0738 lb. N2 / cu. ft. N2 * 30 min.
= 55.35 lbs. N2
= 0.015 mole BA / mole N2 * 72 lbs. BA /
mole BA * mole N2 / 28 lbs. N2
= 0.04 lb. BA / lb. N2
= 55.35 lbs. N2 * 0.04 lbs. BA / lbs. N2
= 2.2 lbs. BA
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2005 AIR EMISSIONS INVENTORY SUPPORTING DOCUMENTATION
Emission -Source ID No.:
Emission Source Description:
Process & Emission Description:
BS-C
Butacite® Flake Dryer
The Butacite® Flake Dryer air exhaust vents to a cyclone separator with a 90% removal
efficiency for Total Suspended Particulates (TSP) which in turn vents to a bag filter
house with a 99% removal efficiency for TSP.
Basis and Assumptions:
The above stated control efficiencies are based on efficiency tests with the Flake Dryer
running at full capacity.
All emissions from this permitted source are totally polyvinyl butyral (PVB) flake
particles that are reported as Total Suspended Particulates (TSP).
Information Inputs and Source Inputs:
Information Input
Source of Inputs
Flake Dryer Process Throughput
Butacite® Production Clerk
Flake Dryer Hours of Operation
Butacite® Production Clerk
Point Source Emissions Determination:
Shown on the following page.
Fugitive Emissions Determination:
None; all emissions are point source emissions.
DEQ-CFW 00087296