DEQ-CFW_00087860

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2004 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 00087860

Facility Name: DuPont Company — Fayetteville Works Facility ID : 0900009
22828 NC Highway 87 West Permit: 03735
Fayetteville, NC 28302 County: Bladen
1 DAQ Region: FRO
North Carolina Department of Environment and Natural Resources
Division of Air Quality
Air Pollutant Point Source Emissions Inventory — Calendar Year 2004
1. Emission Source ID (from permit) or Group G-41 consisting of BS—D2, BS—D3, BS—D4, BS—D1
Emission Source Group ID
2. Emission Source Description: Butacite tinting process
3. Operating Scenario ID/Description: OS — 8/Butacite tinting process
4. SCC Number/Description:
5. Throughput/units in 2004:
(e.g. production or fuel use):
6. Fuel Information (If fuel is used)
7. Capture Efficiency
(% of Emissions from this Process Vented to Control
Device or Stack):
4050051 l/Printing — Gravure:
r/o Sulfur
Ash
ro
I
I Heat Content
(Btu/units)
100
Q TmiQuinn Ralu9en Point frUpl Tnfnrmu+inn. (Cmvrnnv van+nA +n mnrn +1 an non V1?P vivo oAM+1nnal on*r linnet.
ERP ID
ERP Type
Height
Diameter
Temperature
Velocity
Volume Flow
ERP Description
(in feet)
Circle (enter ft
(F)
(Feet/sec)
gate (Acfm)
Rectangle (L x W)
in 0.1 feet)
P—BEP—D
VERTICAL STACKI
35
1.9
70
70
11908.2
Butacite scrubber
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DEQ-CFW 00087861

Operating Scenario: OS — 8
Emission Source/Group ID: G-41
0. Operating Schedule: (Source/Operating Scenario that best characterizes Calendar Year 2004)
ours per Day ( 24 ) Days per Week ( 7 ) Weeks per Year ( 52 )
11. Typical Start & End Times For Operating Scenario: Start: 0 End: 2359
12. Seasonal Periods Percent Annual Throuehnut:
an —Feb + Dec
arch —May
une—Aug.
ept.—Nov.
004
25%
004
25%
004
25%
1
25%
13. Actual Emissions per Pollutant Listed :
Attach calculations and documentation of emission factors or other estimation methods used.
Criteria
(NAAQS) Pollutants
Pollutant Code
Emissions—
Criteria Pollutants
Tons/Year
Emission Estimation
Method Code
(See Instructions)
Control Efficiency
(Net after all controls)
2004
VOC
VOC
0.46
02
97
HAP/TAP Pollutants (In
Alphabetical Order)
CAS
(see instructions)
Emissions
HAP/TAPS
(Pounds/Year)
Emission Estimation
Method Code
(See Instructions)
Control Efficiency
(Net after all controls)
2004
Dimeth 1 formamide
68-12-2
917
02
97
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DEQ-CFW 00087862