DEQ-CFW_00086739

2007 Air Emissions Inventory Supporting Documentation
0 Emission Source ID No.: SGS-A
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Emission Source Description: SentryGlas Plus Process
Process and Emission Description:
The SentryGlas Plus Process is a continuous process in which solid resin is extruded into a
rigid sheet. There is no chemical reactions or processes associated with this process. The
solid resin is delivered to the site, where it and another solid powder are then mechanically
charged into the process. These solids are then extruded into the final sheeting. All air
emissions from this process result from the evolution of volatile compounds, which are
entrained in the resin, from the resin due to the heat of extrusion.
Basis and Assumptions:
The emission rates from the SentryGlas Plus Process is based on the emissions from a sister
manufacturing facility in Germany. For simplicity, the reported emissions are based solely on
the emissions from the process at full production design rates. This approach should over-
estimate the emissions, in part due to no credit being taken for the organics that would be
expected to solubilize in the water used in the liquid ring vacuum pump. Also note that there
is no control device associated with this process.
Information Inputs and Source of Inputs:
Information Inputs
Source of Inputs
Process total throughput pounds for the year
SentryGlas Plus Production Coordinator
Annual production run time (hours for year)
SentryGlas Plus Production Coordinator
Point Source Emissions Determination:
Point source emissions for individual components are given in the following pages. A
detailed explanation of the calculations is attached.
Equipment Emissions and Fugitive Emissions Determination:
The SentryGlas Plus Process is completely contained in a closed building, and as such there
are no non -point source (fugitive) emissions associated with this process.
DEQ-CFW 00086739