DEQ-CFW_00086103

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2008 Air Emissions Inventory Supporting Documentation
Emission Source ID No.: NS-D
Emission Source Description: Nafion RSU Process
Process and Emission Description:
The RSU process is a continuous manufacturing process. All emissions from this process vent to
the Nafion Division Waste Gas Scrubber (WGS),Control Device ID No. NCD-Hdrl, which has a
documented efficiency of 99.6%. The control of emissions of certain compounds will be
addressed in the attached spreadsheet. Certain components (i.e. TFE) pass completely through
the scrubber, therefore the efficiency is assumed to be 0%.
Basis and Assumptions:
The RSU process flowsheet #4 (W 1207831) is used as a basis for relative compositions and flow
rates of vent streams to the division WGS. A 30 kg/hr maximum RSU production rate is used as
the basis for maximum vent rates.
Information Inputs and Source of Inputs:
Information Input
Source of Inputs
RSU production quantity
RSU Production Facilitator
Speciated emission rates
RSU Process Flowsheet #4 (W1207831)
Point Source Emissions Determination:
Point source emissions for individual components are given in the following pages. A detailed
explanation of the calculations are attached.
Equipment Emissions and Fugitive Emissions Determination:
Emissions from equipment leaks which vent as stack (point source) emissions and true fugitive
(non -point source) emissions have been determined using equipment component emission factors
established by DuPont. The determination of those emissions are shown in a separate section of
this supporting documentation.
DEQ-CFW 00086103