SOURCE EMISSION EVALUATION 

Dyno Nobel

St. Helens Plant - Deer Island, Oregon

Nitric Acid Tail Gas Vent Stack

Nitrogen Oxides

Prepared for:

Dyno Nobel

63149 Columbia River Highway

Deer Island, OR 97054

Prepared by:

19874 141st

Woodinville, WA 98072

Ave NE

(425) 489-1938

TRC Project No. 173750-0000-0000

June 15, 2010 
i

SECTION PAGE # 

1.0 INTRODUCTION................................................................................................ 1 

1.1 Summary of Emissions Test Program ................................................................................. 1 

 Table 1.1 – NOX

1.2 Test Program Participants................................................................................................... 1 

Emissions Test Program ........................................................................ 1 

 Table 1.2 – List of Test Program Participants .................................................................. 1 

2.0 SOURCE & SAMPLING DESCRIPTION .......................................................................... 2 

 2.1 Nitric Acid Plant Process Description ................................................................................ 2 

3.0 SUMMARY & DISCUSSION OF TEST RESULTS .......................................................... 3 

 3.1 Compliance Emissions Test Program................................................................................. 3 

 Table 3.1 – NOX

3.2 Project Exceptions ........................................................................................................... 3 

Emissions Results ................................................................................. 3 

4.0 SAMPLING & ANALYTICAL PROCEDURES.......................................................4 

 4.1 Traverse Point Location (EPA Method 1)........................................................................... 4 

 4.2 Stack Gas Velocity and Volumetric Flow Rate (EPA Method 2)........................................ 4 

 4.3 O2 & CO2

 4.4 Moisture Content (EPA Method 4).................................................................................... 4 

Concentrations (EPA Method 3A)..................................................................... 4 

 4.5 NOx (EPA Method 7A) ......................................................................................................... 5 

5.0 QA/QC ACTIVITIES ............................................................................................................. 6 

 5.1 Overview............................................................................................................................. 6 

 5.2 Field Quality Control Summary......................................................................................... 6 

 5.2.1 Calibration Gases.................................................................................................... 6 

 5.2.2 Reagent Certifications............................................................................................ 6 

 5.2.3 External Quality for Method 7A Analysis ...............................................................6 

 5.3 Data Reduction, Validation and Reporting........................................................................ 6 

 5.3.1 Data Validation........................................................................................................ 7 

 5.3.2 Data Reporting........................................................................................................ 7 

TABLES

1.1 NOX

1.2 List of Test Program Participants ........................................................................................ 1 

Emissions Test Program.............................................................................................. 1 

3.1. NOX Emissions Results......................................................................................................................3 
ii

LIST OF APPENDICES

APPENDIX A COMPUTER PRINTOUTS OF RESULTS

APPENDIX C LABORATORY ANALYSIS DATA

APPENDIX C DYNO NOBEL PROCESS DATA

APPENDIX D MANUAL CALCULATIONS & FIELD DATA

APPENDIX E EQUIPMENT CALIBRATION AND GAS CERTIFICATION

INFORMATION

APPENDIX F PROJECT PARTICIPANTS
iii

ABBREVIATIONS 

% Percent

40 CFR 60 Title 40, Code of Federal Regulations, Part 60

Acfm Actual cubic feet per minute

ACS American Chemical Society

° C Degrees Celsius

CO2 

DI Deionized Water

Carbon dioxide

dscf Dry standard cubic feet

dscfm Dry standard cubic feet per minute

EPA Environmental Protection Agency

° F Degrees Fahrenheit

Gpm grams per minute

H2

H

O Water

2SO4 

Hr Hour

Sulfuric Acid

lb/hr Pounds per hour

NO Nitric oxide

NO2 

NO

Nitrogen Dioxide

X

N

Nitrogen Oxides

2

O

Nitrogen

2

ppm Parts per million

 Oxygen

ppmv Parts per million by volume

ppmvd Parts per million by volume, dry

QA Quality Assurance

QC Quality Control

scfm Standard cubic feet per minute

SOP Standard Operating Procedure 

USEPA United States Environmental Protection Agency
Introduction 

1 

SECTION 1 – INTRODUCTION

1.1 Summary of Emissions Test Program

This test program consisted of nitrogen oxides (NOx) emissions testing at Dyno Nobel’s St. Helens 

Plant in Deer Island, Oregon for compliance with the Section 114 letter that Dyno Nobel recently 

received from the USEPA. 

Included in Table 1.1 below is the test matrix of the completed test program along with the 

applicable test methods used. 

Table 1.1 – NOx Emissions Test Program

1.2 Test Program Participants

Included in Table 1.2 below are the test program participants. 

Table 1.2 –List of Test Program Participants

Nitric Acid Tail Gas Vent Stack

Dyno Nobel – St. Helens Plant – Deer Island, Oregon

EPA Test Method Parameter

# runs at 

each unit

Length of test

(minutes)

1, 2, 3A, & 4 Stack Gas Velocity

 O2/CO2

3 

, Moisture, Molecular Weight

N/A

(were run concurrently with 

Method 4 tests)

7A NOx 3 60

Nitric Acid Tail Gas Vent Stack

NOx Emissions Test Program Participants

Program Role Company Contact Information

Source/Test Coordinator Dyno Nobel

Ms. Alicia Little

Dyno Nobel

63149 Columbia River Highway

Deer Island, OR 97054 

Testing Company

TRC Environmental Corporation

19874 141st

Woodinville, WA 98072 USA

Place NE

Mr. Greg Lipnickey, Project Manager

office - 425-489-1938

fax - 425-489-9564

glipnickey@trcsolutions.com
Source & Sampling Location Description 

2 

SECTION 2 – SOURCE & SAMPLING LOCATION DESCRIPTION

2.1 Nitric Acid Plant Process Description

Nitric Acid is produced through a series of chemical reactions that occur between air, ammonia, and 

water. At the St. Helens facility this process takes place in three steps: 1) combustion, 2) oxidation, 

and 3) absorption. 

During combustion, ammonia is first heated, mixed with air, and passed through a platinum gauze 

catalyst, where the ammonia-air mixture is burned to form nitric oxide gas. The nitric oxide gas is 

then cooled in a series of heat exchangers for oxidation to nitrogen dioxide. After nitrogen dioxide 

gas is formed, it leaves the heat exchangers and enters the bottom of the absorption column. As the 

nitrogen dioxide enters the tower, it flows upward through water held in trays. This forces the gas to 

bubble up through the water introduced at the top of the tower. As the gas and water come into 

contact, the nitrogen dioxide is absorbed into the water to form nitric acid. 

The strength of the nitric acid produced is determined by the amount of water added to the top of 

the tower. The St. Helens facility produces 58% nitric acid for use as a feedstock in the Ammonium 

Nitrate Plant. Any gases that pass through the tower without being absorbed are sent to a nonselective catalytic reduction unit. This unit uses purge gas from the synthesis to loop to combust 

both NOx and N2O into elemental N2 and H20 before being vented to atmosphere. 

The nitric acid tail gas vent stack has an inside diameter of 23.5 inches and is equipped with two (2) 

4-inch test ports which are located 90 degrees apart. The test ports are located greater than two (2) 

stack diameters upstream and approximately eight (8) diameters downstream from any 

disturbances. 
Summary & Discussion of Test Results

3 

SECTION 3 – SUMMARY & DISCUSSION OF TEST RESULTS

3.1 Compliance Emissions Test Program

The purpose of the test program is to provide the information requested by USEPA in a Section 114 

Letter received by Dyno Nobel. 

Table 3.1 –NOx Emissions Results

Nitric Acid Tail Gas Vent Stack

Dyno Nobel – St. Helens Plant - Deer Island, Oregon

Test 

Identification Emission Unit Run 1 Run 2 Run 3 Average

Permit

Limit

Date --- 5/5/2010 5/5/2010 5/5/2010 --- ---

Start Time --- 1140 1323 1500 --- ---

Stop Time --- 1240 1423 1600 --- ---

Sample Length minutes 60 60 60 60 ---

Sample Volume dscf 32.249 32.859 33.236 32.781 ---

Stack Diameter inches 23.5 23.5 23.5 --- ---

OPERATING PARAMETERS

Nitric Acid 

Production Tons/day 70.34 70.09 69.57 70.00 ---

Airflow to Process scfm 5,364.07 5,351.24 5,318.77 5,344.69 ---

NH3 Flow to 

Process scfm 632.44 630.25 625.49 629.39 ---

Condensate Flow to 

Absorber gpm 3.80 3.80 3.80 3.80

SOURCE PARAMETERS

O2 % 0.0 0.0 0.0 0.0 ---

CO2 % 0.3 0.3 0.6 0.4 ---

Method 4 Flow Rate 

(dry std) dscf/min 5,649.0 5,656.7 5,502.9 5,602.9 ---

SAMPLING RESULTS

NOx

ppm, dry 25.2 25.6 24.5 25.1 200 

lb/hr 1.02 1.04 0.97 1.01 ---

3.2 Project Exceptions

There were no exceptions to this test program. 
Sampling & Analytical Procedures

4 

SECTION 4 – SAMPLING & ANALYTICAL PROCEDURES

All sampling and analytical procedures used in this test program are based on procedures published 

by the EPA. These sampling and analytical procedures are contained in the July 2009 editions of 

the EPA document Title 40, Code of Federal Regulations, Part 60 (40 CFR 60), Subparts A and 

Appendix A as published by EPA. Copies of these methods are available from the EPA EMTIC 

electronic bulletin board or the Code of Federal Regulations which can be obtained online. 

• Method 1 Sample and Velocity Traverses for Stationary Sources

• Method 2 Determination of Stack Gas Velocity and Volumetric Flow Rate (Type S Pitot Tube)

• Method 3A Determination of Oxygen and Carbon Dioxide Concentrations in Emissions from Stationary 

Sources (Instrumental Analyzer Procedure) 

• Method 4 Determination of Moisture Content in Stack Gases

• Method 7A Determination of Nitrogen Oxide Emissions from Stationary Sources (Ion Chromatographic 

Method)

4.1 Traverse Point Location (EPA Method 1)

The procedures specified by EPA Method 1, "Sample and Velocity Traverses for Stationary Sources", 

were followed to determine the number and location of traverse points used for the velocity 

traverse. The number of straight run stack diameters (equivalent diameters) upstream and 

downstream from the sample ports was used to determine the minimum number of traverse points 

required. 

During each Method 4 test, the sample probe tip was moved to each of the traverse points in each of 

the applicable test ports. A copy of the stack schematic with the actual traverse points is included in 

the final report. 

4.2 Stack Gas Velocity and Volumetric Flow Rate (EPA Method 2)

The procedures specified by EPA Method 2, “Determination of Stack Gas Velocity and Volumetric 

Flow Rate (Type-S Pitot tube), are used to determine the stack velocity and volumetric flow rate. 

These procedures are slightly modified when performed as part of Method 5 tests. The sample 

probe, including a Type-S pitot tube and K-Type thermocouple, are positioned at each traverse 

point. The Pitot tube differential pressure and exhaust gas temperature data were recorded on field 

data sheets. The Pitot tube was connected to an inclined-vertical oil manometer and the 

thermocouple was connected to a digital readout. The thermocouple and readout devices have been 

calibrated in accordance with USEPA Emission Measurement Centers Approved Alternative Method 

Alt-011 requirements after field use.

4.3 O2 & CO2 Concentrations (EPA Method 3)

For this test program, TRC continuously collected percent O2 and CO2 concentrations per EPA 

Method 320. A copy of the raw data is included in Appendix D of this test report. For each test run, 

the molecular weight of the stack gas was calculated per Method 3 based on concurrent O2 and CO2

stack gas concentrations. 

4.4 Moisture Content (EPA Method 4)

The moisture content of the stack gas was determined gravimetrically from the weight gain in each 
Sampling & Analytical Procedures

5 

impinger and the weight gain of the silica gel impinger from the Method 4 sampling trains. 

4.5 NOx (EPA Method 7A)

Collection of NOx samples were performed according to EPA Method 7A. Two-liter borosilicate 

round bottom flasks with short necks and 24/40 standard taper joint. A digital-type thermometer 

capable of measuring 1° C (2°F) intervals from -5° to 50° C (25° to 125° F) was fitted into the 

thermal wells on each flask. A mercury manometer was used to measure pressure. Due to the low 

moisture of the flue gas, an unheated probe was used. A check was made before testing to ensure 

that there was no moisture condensation on the probe or stopcock.

The flasks were prepared for sampling by pipetting 25 mL of absorbing solution into each sample 

flask. The absorbing solution was prepared by adding 2.8 mL of concentrated H2SO4 to 1 liter of 

deionized (DI) water following by adding 6 mL of 3% H2O2. The absorbing solution was prepared 

one day prior to sampling. Also, each flask was cleaned prior to the absorbing solution being added.

For sampling, each flask valve and the valve was turned to it’s evacuate position and evacuated to 

less than 3” Hg of absolute pressure. The pump valve was turned to its vent position, and the pump 

was turned off. The volume of the flask and the valve, flask temperature, and barometric pressure 

were recorded. The absolute internal pressure in the flask was equal to the barometric pressure less 

the manometer reading. Stack gas pulled through the probe past the flask by a pump filling the 

probe with stack gas. The flask valve was immediately turned to the sample position, and stack gas 

was permitted to enter the flask. Sampling was stopped with vacuum due to the insufficient oxygen 

present in the flue gas stream (< 4% O2). Ambient air was then introduced to allow for sufficient O2

in the conversion of NO to NO2. 

After collection, the flasks were shaken for at least 5 minutes and allowed to sit for at least 30 hours. 

The flasks with the samples inside were shaken again for at least two minutes. The flask samples 

were then transferred to polyethylene bottles.

The samples were analyzed by EPA Method 7A by Chester LabNet in Tigard, Oregon. Emissions 

results were reported in μg and μg/mL of NO per sample. The results were then converted to ppm. 

Appendix C contains the Chester LabNet laboratory data.

To arrive at the final NOx results, a correction factor was applied to the analytical results. Samples 

of two known protocol gas concentrations were collected and analyzed using EPA Method 7A. 

Appendix D contains the correction factor used for the samples. The average percent difference 

between the Method 7A results and the protocol gas values was used a correction factor to adjust to 

the flask sampling results. The corrected results were used in any subsequent calculations. 
QA/QC Activities

6 

SECTION 5 – QA/QC ACTIVITIES

5.1 Overview

TRC Environmental Corporation management is fully committed to an effective Quality 

Assurance/Quality Control Program whose objective is the delivery of a quality product. For much 

of TRC's work, that product is data resulting from field measurements, sampling and analysis 

activities, engineering assessments, and the analysis of gathered data for planning purposes. The 

Quality Assurance Program works to provide complete, precise, accurate, representative data in a 

timely manner for each project, considering both the project's needs and budget constraints. 

Throughout this test program, TRC has adhered to specific EPA method criteria and QA/QC 

procedures to ensure the collection and reporting of accurate emissions results. Companywide, TRC 

employs SOPs for almost every aspect of the emissions testing process. Glassware preparation, 

equipment calibrations, sample clean-up ,data reduction and reporting, specific EPA methodology 

criteria, and QA/QC procedures for testing and emissions reporting are just a few of the areas for 

which TRC has standardized protocols available. Copies of any applicable SOP’s are available upon 

request. 

This section highlights the specific QA/QC procedures that were followed on this Test Program.

5.2 Field Quality Control Summary

5.2.1 Calibration Gases

All calibration gases used to conduct instrument calibrations were prepared in accordance with EPA 

Protocol 1 and are traceable to National Bureau of Standards Reference Materials. Included in the 

appendix of this report are copies of the pertinent calibration gas certifications. 

5.2.2 Reagent Certifications

All reagents used for this project conform to the specifications established by the Committee on 

Analytical Reagents or the ACS, or the best available grade. 

For this project, field reagent blanks were analyzed and reported along side the EPA Method 5 

gravimetric samples. For the Method 5 tests, reagent blank corrections were not applied to the

samples. 

5.2.3 External Quality Assurance for Method 7A Analysis

The USEPA provided four (4) test method performance audit samples for this test program. The 

USEPA contacted TRC with the information that the audit samples were within acceptable method 

criteria.

5.3 Data Reduction, Validation and Reporting

Specific QC measures were used to ensure the generation of reliable data from sampling activities. 

Proper collection and organization of accurate information followed by clear and concise reporting 

of the data is a primary goal in all projects.
QA/QC Activities

7 

5.3.1 Data Validation

TRC supervisory and QC personnel use validation methods and criteria, appropriate to the type of 

data and the purpose of the measurement. Records of all data are maintained, including that 

judged to be an "outlying" or spurious value. The persons validating the data have had sufficient 

knowledge of the technical work to identify questionable values.

The Field Team Leader and/or the QC Coordinator, based on their review of the adherence to an 

approved sampling protocol and written sample collection procedure, validated the field sampling 

data. The following criteria were used to evaluate the field sampling data:

· Use of approved test procedures;

· Proper operation of the process being tested;

· Use of properly operating and calibrated equipment;

· Leak checks conducted before and after test.

5.3.2 Data Reporting

All data were reported in standard units depending on the measurement and the ultimate use of the 

data. 

The bulk of the data were computer processed and reported as follows:

Exhaust Gas Stream

• Stack exhaust

a. Stack exhaust flow rates (reported in dscfm and acfm)

b. Stack exhaust moisture content

2. Gas Diluents and Pollutants

a. Method 3 - O2 and CO2 %, dry

b. Method 7A – NOx ppmvd (dry), lb/hr
APPENDIX A

COMPUTER PRINTOUTS OF RESULTS
TEST DATA SUMMARIES

Dyno Nobel

Deer Island, Oregon

Nitric Acid Tail Gas Vent Stack

Moisture & Airflow Test Dates: 5/5/2010

TABLE OF CONTENTS:

Data Sheet

Calculation Sheet

Run Sheet - Run 1

Run Sheet - Run 2

Run Sheet - Run 3

Sampling Data Summary

Parameter SYMBOL UNITS Run 1 Run 2 Run 3 3-Run Avg

Total Sampling Time min minutes 60 60 60 60

Stack Gas Oxygen Content O2 % 0.0 0.0 0.0 0.0

Stack Gas Carbon Dioxide Content CO2 % 0.3 0.3 0.6 0.4

Gas Sample Volume at Standard Conditions Vm(std) cu. ft. 32.249 32.859 33.236 32.781

cu. m. 0.913 0.930 0.941 0.928

Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 5,649.0 5,656.7 5,502.9 5,602.9

dscm/min 159.9 160.1 155.8 158.6

TRC

19874 141st Place NE

Woodinville, WA 98072

Phone: (425) 489-1938

Fax: (425) 489-9564

Project Number: 173750
EMISSION MEASUREMENTS DEPARTMENT

19874 141st Place N.E.

Woodinville, WA 98072

Phone: (425) 489-1938

Fax: (425) 489-9564

CLIENT: Dyno Nobel DATES: 5/5/2010

LOCATION: Deer Island, Oregon PROJECT NO.: 173750

UNIT: Nitric Acid Tail Gas Vent Stack PERSONNEL: DJW/MW

Parameter SYMBOL UNITS DATA

Test Number Run 1 Run 2 Run 3

Test Date 5/5/2010 5/5/2010 5/5/2010

Method 2 Start Time 1140 1323 1500

Method 2 Stop Time 1240 1423 1600

Stack Diameter ds inches 23.5 23.5 23.5

Barometric Pressure at Sampling Location Pbar in. Hg 29.90 29.90 29.90

Stack Static Pressure Pg in. H2O -0.14 -0.13 -0.55

Pitot Coefficient cp none 0.84 0.84 0.84

Meter Calibration Factor Y none 0.9962 0.9962 0.9962

DH@ none 1.7756 1.7756 1.7756

Stack Gas Oxygen Content O2 % 0.0 0.0 0.0

Stack Gas Carbon Dioxide Content CO2 % 0.3 0.3 0.6

Net Moisture Gain (Impingers w/SiGel) Ww grams 26.7 21.9 34.3

Average Stack Temperature ts deg F 160.4 161.1 156.5

Average Meter Temperature tm deg F 73.9 81.5 92.4

Avg Delta H dH in. H2O 1.00 1.00 1.00

Average Square Root Delta H ASR dH in. H2O 1.000 1.000 1.000

Avg Velocity Head dP in. H2O 0.38 0.38 0.36

Average Square Root Delta P ASR dP in. H2O 0.614 0.612 0.602

Gas Sample Volume Vm cu. ft. 32.676 33.767 34.841

Total Sampling Time min minutes 60 60 60

Moisture & Airflow 

The table below contains the results of testing and calculations performed by TRC on the date(s) listed. 

Data Input Sheet
EMISSION MEASUREMENTS DEPARTMENT

19874 141st Place N.E.

Woodinville, WA 98072

Phone: (425) 489-1938

Fax: (425) 489-9564

CLIENT: Dyno Nobel DATES: 5/5/2010

LOCATION: Deer Island, Oregon PROJECT NO.: 173750

UNIT: Nitric Acid Tail Gas Vent Stack PERSONNEL: DJW/MW

Moisture & Airflow 

Parameter SYMBOL UNITS DATA

Test Number Run 1 Run 2 Run 3

Test Date 5/5/2010 5/5/2010 5/5/2010

Method 2 Start Time: 1140 1323 1500

Method 2 Stop Time: 1240 1423 1600

Calculated Data

Stack Area,As=3.14159*((Ds/12)/2)^2 As sq.ft. 3.01 3.01 3.01

Avg Stack Temperature, Ts=ts+460 Ts deg R 620.4 621.1 616.5

Meter Pressure, Pm=Pb+Dh/13.6 Pm in. Hg 29.97 29.97 29.97

Avg Meter Temperature, Tm=tm+460 Tm deg R 533.9 541.5 552.4

Gas Sample Volume at Standard Conditions, Vm(std) cu. ft. 32.249 32.859 33.236

Vm(std)= 528/29.92*Y*Vm*Pm/Tm cu. m. 0.913 0.930 0.941

Net Moisture Gain (Impingers w/SiGel) Ww grams 26.7 21.9 34.3

Volume of Water Vapor, Vw(std)= 0.04715*Wlc Vw(std) cu. ft. 1.259 1.033 1.617

Moisture Fraction, Bws = Vw(Std)/(Vm(Std)+Vw(Std))*100 Bws % 3.76% 3.05% 4.64%

Dry Stack Gas Molecular Weight, Mwd g/g-mole 28.05 28.05 28.10

 Md = (0.32*O2)+(0.44*CO2)+(0.28*(100-(O2+CO2)))

Wet Stack Gas Molecular Weight Mws g/g-mole 27.67 27.74 27.63

Mw = Md* (1-Bws)+(18*(Bws))

Absolute Stack Pressure, Ps = Pbar + Pg/13.6 Ps in. Hg. 29.89 29.89 29.86

Stack Gas Velocity

 Vs= 85.49*Cp*ASRdP*((Ts)/((Ps)*(Mw)))^0.5 Vs ft/sec 38.20 38.01 37.36

 Vsm = 0.3048* Vs Vsm m/sec 11.64 11.59 11.39

Actual Stack Gas Flow Rate, Qa = 60*Vs*As Qa acf/min 6,904 6,870 6,752

Stack Gas Flow Rate (STP), Qsw scf/min 5,870 5,834 5,771

 Qsw = 528/29.92 * Qa * (Ps/Ts)

Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 5,649.0 5,656.7 5,502.9

 Qsd = 528/29.92 * Qa * (1-Bws)* (Ps/Ts) dscm/min 159.9 160.1 155.8

Meter Calibration (Alternate Method) Yqa none 1.0562 1.0293 1.0067

Meter Quality Assurance/Quality Check % Diff -6.0% -3.3% -1.1%

=100*(Y-Yqa)/Y

Sampling Data Summary

Parameter SYMBOL UNITS Run 1 Run 2 Run 3 3-Run Avg

Total Sampling Time min minutes 60 60 60 60

Stack Gas Oxygen Content O2 % 0.0 0.0 0.0 0.0

Stack Gas Carbon Dioxide Content CO2 % 0.3 0.3 0.6 0.4

Gas Sample Volume at Standard Conditions Vm(std) cu. ft. 32.249 32.859 33.236 32.781

cu. m. 0.913 0.930 0.941 0.928

Dry Stack Gas Flow Rate (Dry, STP), Qsd dscf/min 5,649.0 5,656.7 5,502.9 5,602.9

dscm/min 159.9 160.1 155.8 158.6

Yqa=Min/Vm*((0.0319*Tm*29)/(DH@*(Pbar+dH/13.6)*Md))^0.5 

Calculation Sheet

The table below contains the results of testing and calculations performed by TRC on the date(s) listed. 
EMISSION MEASUREMENTS DEPARTMENT

19874 141st Place N.E.

Woodinville, WA 98072

Phone: (425) 489-1938

Fax: (425) 489-9564

CLIENT: Dyno Nobel DATE: 

LOCATION: Deer Island, Oregon PROJECT NO.: 

UNIT: Nitric Acid Tail Gas Vent Stack PERSONNEL: 

The table below contains the results of testing and calculations performed by TRC on the date(s) listed. 

RUN NO: Run 1

Minutes per point: 10 OPERATOR: D. Williams

number of points: 12

DGM VEL. Sqrt STACK DRY GAS METER

POINT TIME READING Dp Dp TEMP. TEMP (o

F)

NUMBER INITIAL Dp (in. H2O) Dp DH Sqrt. (

o

F) INLET OUTLET

1 0 69.549 0.35 0.592 1.0 1.000 159 66 58

2 10 0.37 0.608 1.0 1.000 160 68 59

3 20 0.38 0.616 1.0 1.000 161 70 60

4 30 0.39 0.624 1.0 1.000 161 73 61

5 40 0.39 0.624 1.0 1.000 162 84 62

6 50 0.33 0.574 1.0 1.000 159 93 62

1 60 102.225 0.38 0.616 1.0 1.000 159 93 62

2 0.38 0.616 1.0 1.000 160 94 63

3 0.40 0.632 1.0 1.000 161 95 64

4 0.40 0.632 1.0 1.000 161 95 66

5 0.38 0.616 1.0 1.000 161 95 67

6 0.38 0.616 1.0 1.000 161 96 68

Total Total Avg. Avg. Avg. Avg. Avg. Avg.

60.0 32.676 0.378 0.614 1.00 1.000 160.4 73.9

Impinger Gain 

impinger 1: 746.9 734.9 12.0

impinger 2: 766.5 759.5 7.0 M2 Start Time: 1140

impinger 3: 643.3 642.3 1.0 M2 Stop Time: 1240

impinger 4: 906.5 899.8 6.7 M4 Start Time: 1140

Net Weight Gain (grams): 26.7 M4 Stop Time: 1240

Static Pressure: -0.14

5/5/2010

173750

DIFF

PRESS.

Moisture & Airflow 

Field Data Sheet

DJW/MW
EMISSION MEASUREMENTS DEPARTMENT

19874 141st Place N.E.

Woodinville, WA 98072

Phone: (425) 489-1938

Fax: (425) 489-9564

CLIENT: Dyno Nobel DATE: 

LOCATION: Deer Island, Oregon PROJECT NO.: 

UNIT: Nitric Acid Tail Gas Vent Stack PERSONNEL: 

The table below contains the results of testing and calculations performed by TRC on the date(s) listed. 

RUN NO: Run 2

Minutes per point: 10 OPERATOR: D. Williams

number of points: 12

DGM VEL. Sqrt STACK DRY GAS METER

POINT TIME READING Dp Dp TEMP. TEMP (o

F)

NUMBER INITIAL Dp (in. H2O) Dp DH Sqrt. (

o

F) INLET OUTLET

1 0 102.450 0.29 0.539 1.0 1.000 154 85 68

2 10 0.34 0.583 1.0 1.000 158 86 69

3 20 0.38 0.616 1.0 1.000 160 89 70

4 30 0.37 0.608 1.0 1.000 161 93 70

5 40 0.37 0.608 1.0 1.000 162 97 70

6 50 0.34 0.583 1.0 1.000 161 96 71

1 60 136.217 0.40 0.632 1.0 1.000 162 95 72

2 0.41 0.640 1.0 1.000 163 94 72

3 0.41 0.640 1.0 1.000 163 93 72

4 0.41 0.640 1.0 1.000 163 92 73

5 0.41 0.640 1.0 1.000 163 91 74

6 0.37 0.608 1.0 1.000 163 90 74

Total Total Avg. Avg. Avg. Avg. Avg. Avg.

60.0 33.767 0.375 0.612 1.00 1.000 161.1 81.5

Impinger Gain 

impinger 1: 762.0 746.9 15.1

impinger 2: 767.1 766.5 0.6 M2 Start Time: 1323

impinger 3: 643.8 643.3 0.5 M2 Stop Time: 1423

impinger 4: 912.2 906.5 5.7 M4 Start Time: 1323

Net Weight Gain (grams): 21.9 M4 Stop Time: 1423

Static Pressure: -0.13

5/5/2010

173750

DIFF

PRESS.

Moisture & Airflow 

Field Data Sheet

DJW/MW
EMISSION MEASUREMENTS DEPARTMENT

19874 141st Place N.E.

Woodinville, WA 98072

Phone: (425) 489-1938

Fax: (425) 489-9564

CLIENT: Dyno Nobel DATE: 

LOCATION: Deer Island, Oregon PROJECT NO.: 

UNIT: Nitric Acid Tail Gas Vent Stack PERSONNEL: 

The table below contains the results of testing and calculations performed by TRC on the date(s) listed. 

RUN NO: Run 3

Minutes per point: 10 OPERATOR: G. Lipnickey

number of points: 12

DGM VEL. Sqrt STACK DRY GAS METER

POINT TIME READING Dp Dp TEMP. TEMP (o

F)

NUMBER INITIAL Dp (in. H2O) Dp DH Sqrt. (

o

F) INLET OUTLET

1 0 138.866 0.35 0.592 1.0 1.000 152 98 72

2 10 0.37 0.608 1.0 1.000 154 100 75

3 20 0.38 0.616 1.0 1.000 156 101 78

4 30 0.38 0.616 1.0 1.000 157 102 79

5 40 0.39 0.624 1.0 1.000 158 104 80

6 50 0.37 0.608 1.0 1.000 158 106 80

1 60 173.707 0.34 0.583 1.0 1.000 155 107 81

2 0.36 0.600 1.0 1.000 156 107 82

3 0.38 0.616 1.0 1.000 158 107 83

4 0.38 0.616 1.0 1.000 158 107 84

5 0.34 0.583 1.0 1.000 158 107 85

6 0.31 0.557 1.0 1.000 158 107 85

Total Total Avg. Avg. Avg. Avg. Avg. Avg.

60.0 34.841 0.363 0.602 1.00 1.000 156.5 92.4

Impinger Gain 

impinger 1: 778.2 762.0 16.2

impinger 2: 767.5 767.1 0.4 M2 Start Time: 1500

impinger 3: 655.0 643.8 11.2 M2 Stop Time: 1600

impinger 4: 918.7 912.2 6.5 M4 Start Time: 1500

Net Weight Gain (grams): 34.3 M4 Stop Time: 1600

Static Pressure: -0.55

5/5/2010

173750

DIFF

PRESS.

Moisture & Airflow 

Field Data Sheet

DJW/MW
Solutia - Gonzalez, FL

Nitric Acid Plant

Emissions Test Data Averages:

Molecular Weight N20

Moisture: 0.33 %

Volumetric Flow Rate: 336,172 dscfm

Nitrogen Oxides: 25.1 ppm, dry

Nitrogen Oxides: 1.0 lb/hr

NOx Concentration, Wet Basis:

25.1 ppmvd * (1 - 0.0033 ) = 25.0 ppm, wet

Process Data:

Average Nitric Production Rate: = 70,000 lb/hr

= 35.00 ton/hr

NOx Emission Factor

106.06lb/hr NOx / 46.26 ton/hr Nitric = 0.03 lb NOx / ton HNO3

Nitric Acid Plant Conversion Factor

2.29 lb NOx/ton HNO3 / 152.3 ppm = 0.001 lb NOx/ton HNO3/ppm

CONVERSION FACTOR CALCULATION
Date

Run Number 1A 1B 1C 1D

Flask ID 7 13 54 92

INITIAL

Barometric Pressure (Pbi) Hg 29.90 29.90 29.90 29.90

Gauge Pressure (Pgi) Hg -28.80 -28.80 -28.80 -28.50

Absolute Pressure (Pai) Hg 1.10 1.10 1.10 1.40

FINAL

Barometric Pressure (Pbf) Hg 30.20 30.20 30.20 30.20

Gauge Pressure (Pgf) Hg 0.8 0.8 0.8 0.6

Absolute Pressure (Paf) Hg 31.00 31.00 31.00 30.80

Volume of Flask (Vf) mL 1992 2010 2077 2060

Sample Temp.Initial(ti) F 60 60 61 61

Sample Temp. Final(tf) F 52 52 52 52

Vol. of Absorbing Sol.(Va) mL 25 25 25 25

Formula Weight(NO2) 46.01 46.01 46.01 46.01

Vol. of Gas Sampled(Vsc) L 2.027 2.046 2.115 2.063

NOx as NO2 mg 0.177 0.186 0.178 0.00511

ppmvd 46 48 44 1

Protocol Gas Concentration 53.1 53.1 53.1 0

% Bias for Each Prot. Gas 16.3 11.7 20.7

Average Bias(%) 16.2 16.2

NOx FLASK SUMMARY RESULTS OF GAS CYLINDERS 

FOR PERCENT BIAS CALCULATION

05/05/10
NOx FLASK SUMMARY RESULTS

Date

Run Number 1A 1B 1C 1D 1E 2A 2B 2C 2D 2E 3A 3B 3C 3D 3E

Flask ID 73 44 58 20 27 104 60 55 39 80 95 77 91 37 19

INITIAL

Barometric Pressure (Pbi) Hg 29.90 29.90 29.90 29.90 29.90 29.90 29.90 29.90 29.90 29.90 29.90 29.90 29.90 29.90 29.90

Gauge Pressure (Pgi) Hg -28.20 -28.00 -28.30 -28.40 -28.20 -28.20 -28.30 -27.90 -28.30 -28.40 -28.40 -28.40 -28.30 -28.20 -28.10

Absolute Pressure (Pai) Hg 1.70 1.90 1.60 1.50 1.70 1.70 1.60 2.00 1.60 1.50 1.50 1.50 1.60 1.70 1.80

FINAL

Barometric Pressure (Pbf) Hg 30.20 30.20 30.20 30.20 30.20 30.20 30.20 30.20 30.20 30.20 30.20 30.20 30.20 30.20 30.20

Gauge Pressure (Pgf) Hg 0.2 0.1 0.2 0.0 0.2 0.2 0.4 0.0 0.4 0.4 0.0 0.6 0.4 0.8 0.6

Absolute Pressure (Paf) Hg 30.40 30.30 30.40 30.20 30.40 30.40 30.60 30.20 30.60 30.60 30.20 30.80 30.60 31.00 30.80

Volume of Flask (Vf) mL 2016 2015 2024 2110 2088 2063 2002 2102 2009 2037 2033 2022 2073 2078 2013

Sample Temp.Initial(ti) F 49 47 48 48 48 48 50 49 51 51 51 52 57 56 55

Sample Temp. Final(tf) F 50 48 46 50 48 50 50 49 49 50 51 51 50 51 52

Vol. of Absorbing Sol.(Va) mL 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25

Formula Weight (NO2) 46.01 46.01 46.01 46.01 46.01 46.01 46.01 46.01 46.01 46.01 46.01 46.01 46.01 46.01 46.01

Vol. of Gas Sampled(Vsc) L 1.976 1.962 2.007 2.069 2.056 2.023 1.983 2.030 1.994 2.025 1.989 2.020 2.056 2.078 1.987

NOx as NO2 mg 0.0839 0.0836 0.0825 0.0876 0.0790 0.0838 0.0776 0.0732 0.0850 0.1040 0.0855 0.0792 0.0842 0.0772 0.0820

ppmvd 22.2 22.3 21.5 22.1 20.1 21.7 20.5 18.9 22.3 26.9 22.5 20.5 21.4 19.4 21.6

Raw Correction Factor 

Data Applied NOx Production

Totals ppmvd ppmvd lb/hr Rate(tons/day) lb/ton

Run 1 21.6 25.2 1.02 70.34 0.347

Run 2 22.0 25.6 1.04 70.09 0.355

Run 3 21.1 24.5 0.966 69.57 0.333

Averages 21.6 25.1 1.01 70.00 0.345

1.19E-07

Avg Production Rate (tons/day) = 70.00

Avg HNO3 Production Rate (dry tons/hr) = 2.92

lb NOx / ton HNO3 = 1.01/2.92 0.35

5,656.7

5,502.9

5,602.9 336,172

5/5/2010

338,940

339,402

330,174

Flow

QsdHr

Flow

Qsd/min

5,649.0
APPENDIX B 

LABORATORY ANALYSIS DATA











APPENDIX C 

DYNO NOBEL PROCESS DATA












APPENDIX D 

MANUAL CALCULATIONS & FIELD DATA






























APPENDIX E 

EQUIPMENT CALIBRATION & GAS CERTIFICATION 

INFORMATION



APPENDIX F 

PROJECT PARTICIPANTS
Project Participants

PROJECT PARTICIPANTS

TRC Environmental Corporation

Greg Lipnickey – Project Manager

Mark Winter – Field Manager

David Williams – FTIR Operator/Technical Specialist

Judith Aasland – Sr. Technical Writer

Tsunami Van Winkle – Technical Assistant

Dyno Nobel

Alicia Little, Environmental Coordinator