DEQ-CFW_00088094

0 Information Inputs and Source of Inputs:
Information Input
Source of Inputs
PMDF polymer production quantity and
composition
PMDF Production Facilitator
PMDF raw material consumption
PMDF Production Facilitator
Polymerization Initiator composition, flow
rates and hours of operation
PMDF Process Data Historian
Point Source Emissions Determination:
The point source emissions are given individually by component as follows:
Point Source Emissions Determination
A. HFPO Dimer Acid Fluoride (DAF) CAS No. 2062-98-8
Perfluoro-2-proproxy Propionyl Fluoride - C3F70CF(CF3)COF
DAF, a feedstock for the PMDF polymerization initiator, is only vented as a maintenance
emission when a ton cylinder of DAF is switched. PMDF typically changes a cylinder once
every 4 months. The liquid DAF in the cylinder connection line is blown back into the
cylinder, and the line is repeatedly pressurized and vented down before line breaks are
performed. It is conservatively estimated that as much as I lb. of DAY may be emitted from
this Y2" tubing line as part of the decontamination step. The 1 lb. DAF emission is evenly
split across the 4 months for emissions reporting, meaning it is assumed that each month has
0.25 lb. of DAF, which rounds to 0.3 lb. DAF per month.
Example Monthly Calculation: Data from January 2004
Vented DAF = 0.3 lb. DAF/month
VOC Emissions = 0.3 VOC/month
HF Potential:
Each mole of DAF (MW = 332) can generate I mole of HF (MW = 20).
I lb. DAF 1 mole DAF 20 lb. HF 1 mole HF = 0.06 lb. HF
332 lb. DAF mole HF 1 mole DAF
Therefore, each I lb. of DAF can generate 0.06 lb. of HF.
! HF Equivalent Emissions =
0.3 lb DAF
month
X 0.06 lb HF
•,
0.02 lb. HF
month
DEQ-CFW 00088094