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OAR Box 1413 

Prepped by Ollie Stewart 

Document Number: 

50) 11-1-50 

Docket Number: 

A-94-52 

Printed 7/9/2008 3:11:22 PM Sheet SO of 114 
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03/20/96 10:20 ©70127 7 0218 TECTON PRODUCTS (£1001 

Interpol! Laboratories, Inc. . 

4500 Ball Road N.E. 

Circle Pines. Minnesota 55014-1819 

TEL: (612)786-6020 

FAXu(6-T2) 786-7854 

RESULTS OF THE JULY 15, 1993 

TOTAL HYDROCARBON DRE TEST ON THE 

THERMAL OXIDIZER AT THE TECTON PRODUCTS 

PLANT IN FARGO, NORTH DAKOTA 

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Submitted to: 

TECTON PRODUCTS 

Box 102 

Fargo, North Dakota 58103 

Attention: Charlie Vanasse 

Reviewed by: 

Report Number 3-9415 

July 29, 1993 

DD/djd 

Daniel J. Despen 

Manager 

Stationary Source Testing Department 
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PTABLE OF CONTENTS 

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1 

2 

3 

ABBREVIATIONS iii 

INTRODUCTION 1 

SUMMARY AND DISCUSSION 3 

RESULTS 5 

3.1 Orsat & Moisture Analyses 6 

APPENDICES: 

A - Volumetric Flow Rate Determinations 

B - Location of Test Ports 

C - Field Data Sheets 

D - Interpol I Laboratories Analytical Data 

E-THCStripcharts 

F - Measurement System Performance Specifications 

G - Process Documentation 

H • Procedures 

I - Calculation Equations 

J - Sampling Equipment Calibration Data 

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INTRODUCTION / -. 

On July 15, 1993, Interpoll Laboratories personnel conducted a total hydrocarbon 

(THQ destruction removal efficiency (DRE) test on the thermal oxidizer in accordance with 

Subpart W V of CFR Title 40, Part 60 at the Tecton Products Facility in Fargo, North Dakota. 

Data colleaed in February 1993 to determine face velocities for two total enclosures are also 

included in this report for reference. On-site testing was performed by E. Trowbridge and 

R. Aschenbach. Coordination between testing activities and plant operation was provided 

by Charlie Vanasse of Tecton Products. The test was witnessed by Cary Helbling of the 

North Dakota State Department of Health - Air Quality Management Branch. 

The I system tested consists of two total enclosures to capture VOC emissions from 

each of two pultruder lines designated Line 1 and Line 2. The air and VOCs which are 

pulled from the total enclosures is routed to a thermal oxidizer to remove the VOCs prior 

to expelling the cleaned air to atmosphere. During these tests the thermal oxidizer bed 

temperature averaged 1690°F. 

EPA Method 2, CFR Title 40, Part 60, Appendix A (revised July 1, 1992), was used 

determine the volumetric flow rate in each of the two total enclosure exit ducts. The natural 

draft openings were documented and measured by Teaon Products personnel and verified 

by E. Trowbridge of Interpoll Laboratories. 

The concentration of total hydrocarbons (THQ was measured simultaneously at the 

thermal oxidizer Inlet and Outlet as per EPA Method 25A, (ibid), using two Ratfisch Model 

RS55 Total Hydrocarbon Analyzers (heated flame ionization detector). The sample gas 

stream was extracted from the source through a heated probe and filter. The particulate free 

gas stream was then transported through a heated teflon umbilical (250 °F) into the analyzer 

oven where a portion of the gas is fed into the heated FID. The analyzer was calibrated with 

zero, low, mid and high propane in air gas standards. The analog output of each HFID was 

monitored with stripchart recorders. A volumetric flow rate determination was conduaed 

at each test site in accordance with EPA Method 2 in order to calculate total hydrocarbon 

mass rates. 

An integrated flue gas sample was extracted simultaneously with the Stack THC 

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samples using a specially designed gas sampling system. Integrated flue gas samples were 

collected in 44-liter Tedlar bags housed in a protective aluminum container. After sampling 

was complete, the bags were returned to the laboratory for Orsat analysis. Prior to sampling, 

the Tedlar bags are leak checked at 15 IN.HG. vacuum with an in-line rotameter. Bags with 

any deteaable inleakage are discarded. The integrated gas samples collected were also 

analyzed for methane by GC/FID/GSV. 

The important results of the test are summarized in Section 2. Field data and all 

jj other supporting information are presented in the appendices. 
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SUMMARY AND DISCUSSION 

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The results of the THC DRE test £re summarized below. The measured THC 

concentration at the Inlet average£#z6 \ ppmC; which corresponds to an average mass rate 

of

 (&Q9JLB C/HR. The THC concentration averaged 15 ppmC.w at the Stack and the 

emission rate averaged 0.061 LB C/HR. The resulting removal efficiency averaged 96.96%. 

Concentration* 

Time toomC.w) 

(HRS) Inlet Stack 

Vol Flow 

/PSCFM) 

Inlet Stack 

Mass Rate 

(LB C/HR) 

Inler Stack 

Removal 

Effic. 

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1015-1115 

1230-1330 

1535-1635 

471 

483 

474 

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21. 

2070 

2302 

2220 

2140 

2150 

1.86 

2.12 

2.03 

0.051 

0.037 

0-094 

97.26 

98.26 

95.37 

Average 476 15 ,' 2207 

v •, ^ 2170 2.00 0.061 96.96 

ppmC.w - ppm carbon on a wet or actual basis. 

• - Concentrations reported are total nonmethane hydrocarbons (methane results at the 

stack have been used to compute NMTHC from THC (see appendix D for methane 

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analyses). 

The produaion records for these tests are included in Appendix G and indicate lhat 

Line 1 produced 120.25 lb/hr and Line 2 produced 188.25 lb/hr fcr a total of 308.50 lb/hr 

of finished product. 

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m 

The results ofthe February 1993 face velocity determination:, on the total enclosures 

are summarized below. Identical measurements were pertnrmed on each of the two total 

enclosures at this facility. Copies of the natural draft opening measurer intnis are included 

in Appendix C. 

Unft i Total bnrlosurp 

Total Natural Draft Opening Ifr) 1,2 

(m-) 0.111 

total Flow Out (cfm) 4SG 

(mJ/hr> 774.7 

Face Velocity (m/hr) 6,y50 

Line 1 Total Enclosure ' 

Total Natural Draft Opening {ff. O.'.'JB 

in.2) 0.0002 

Total Flow Out i (cfm) 430 

(mVhr) 730.6 

Face Velocity (m/lir> 0,470 

Both the line 1 and Line 2 Total rnclosurcs met the minimum fn.t. velochy 

requirement of Subpart V W which is 3,600 m/fir. Sine? both of the resulting fixes vulbcirie* 

were below 9,00U m/hr streamer** were used to verify that the flaw was into the enclosures 

during these tests. 

No difficulties were encountered in the field or in the daw redui n'on. On the basis 

of these facts and a complete review of the data and results, it is nnr opinion that thu results 

reported herein are accurate and closely reflect the aciu.il value? which existed dt the Umi» 

the test was performed. 

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V, 

RESULTS 

H The results ofthe gas composition (orsat) are presented on the following page. The 

results have been calculated on a personal computer using programs written in Extended 

• BASIC specifically for source testing calculations. EPA-published equations have been used 

as the basis of the calculation techniques in these programs. 

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