AQ_F_1400166_20180523_ST_RvwMemo (4)

DIVISION OF AIR QUALITY
May 23,2018
MEMORANDUM
To: Brendan Davey, P.E.,Asheville Regional Office
From: Shannon Vogel, Stationary Source Compliance Branchv"
Subj ect: Sealed Air Corporation—Hudson
Hudson, Caldwell County,North Carolina
Facility ID 1400166,Permit No. 07550R08
VOC Emissions Testing of Regenerative Thermal Oxidizer OX-2 Controlling Emissions
from Curing Room ES-CR,Fluff Processing Operations ES-FP,and
Polyethylene Foam Extruders EXT-1,EXT-2,EXT-3 and EXT-4
Performed November 16,2017 by Civil&Environmental Consultants,Inc.
Tracking No.2017-280st
Civil&Environmental Consultants,Inc. (CEC)performed EPA Method 1 through 4 and 25A VOC
emissions testing at the inlet and outlet of regenerative thermal oxidizer OX-2 to determine the VOC
destruction efficiency. The test results are acceptable to determine the VOC destruction efficiency as
detailed below. No capture efficiency testing or permanent total enclosure verification was performed in
conjunction with the subject destruction efficiency testing.
OX-2 controls emissions from curing room ES-CR, fluff processing operations ES-FP, and four
polyethylene foam extruders EXT-1,EXT-2, EXT-3 and EXT-4. 15A NCAC 2Q .0315 Synthetic Minor
Facilities applies to avoid the applicability of 15A NCAC 2Q .0501 Purpose of Section and Requirement
for a Permit. Permit Condition A.8 specifies a 100 ton per 12-month period VOC limit for 2Q .0315.
CEC reported a total production rate of 260.0 pounds per,hour for the polyethylene foam extruders.
Permit Condition A.1 La requires the"minimum bed temperature shall not be less than 1790 degrees F,
unless otherwise established by stack testing." Permit Condition A.I Lb requires the"process capture
efficiency shall not be less than 97 percent,and the destruction efficiency of the thermal oxidizer shall not
be less than 95 percent. The overall control efficiency(capture efficiency times destruction efficiency)
shall not be less than 92 percent."
The VOC emissions test results as tabulated below demonstrate that the oxidizer efficiency meets VOC
destruction efficiency requirement in the permit. The test results are not acceptable to use as VOC mass
emissions rates. The oxidizer bed temperature averaged 843°F during testing.
Pollutant/Parameter Test Results Requirement
Inlet VOC as carbon 145.9 lb/hr ---
Outlet VOC as carbon 2.34 lb/hr ---
Destruction Efficiency 98.4% >95%
Capture Efficiency Not Tested 97%
Overall Control Efficiency Not Determined 92%
In conclusion,the EPA Method 25A testing demonstrates OX-2 meets the required destruction efficiency
specified in the permit. If you have any questions regarding the results of this review,please contact me
at 919-707-8416 or shannon.vogel(?ncdenr.gou.
cc: Central Files, Caldwell County IBEAM Documents- 1400166