Resolute RECEIVED

DEC 1 3 2010

Perm~ts ~DAu’~fice i~egio~ Air39 Vice President, Governmental & Corporate Patrick E.Affairs Flynn

U.S. ~ 303.534.4600 x 1145

pflynn@rnrc.net

VIA EMAIL & US MAIL

December 6, 2010

Mr. Gerardo C. Rios, PE

Chief~, Permits Office

Air Division

United States Environmental Protection Agency

75 Hawthorne Street

San Francisco, California 94105

Dear Mr. Rios:

Resolute Natural Resources Company, LLC (Resolute) appreciated the opportunity to

meet last week with you, Mr. Mintz, and members of your staff to discuss our operations at the

McElmo Creek Unit (MCU), including our plan to install additional equipment to further

improve facility efficiency and reduce emissions. We also expressed our desire to complete the

Prevention of Significant Deterioration (PSD) and Operating permits for the MCU Main Flare, a

process begun by our predecessor ExxonMobil over five years ago, so that we may terminate the

MCU consent decree.

As discussed, Resolute plans to replace the existing dehydrator at the MCU facility with a

new triethylene glycol dehydration unit controlled by a thermal oxidizer (the dehydrator) to

further improve compressor reliability and reduce flare-related emissions. Attached to this letter

is output from the GRI GlyCaic model estimating controlled emissions of volatile organic

compounds (VOC5) and hazardous air pollutants (HAPs) associated with the dehydrator. The

model output confirms the controlled emissions are below significance thresholds for VOCs and

HAPs, comprising 4.4 tons per year (tpy) VOCs, 2.2 tpy total HAPs, and 0.8 tpy benzene.

We understand from comments made by you and Mr. Mintz that the EPA’s position is

that the new dehydrator can be added to the facility prior to issuance of the PSD and Operating

permits, provided Resolute can do so without exceeding emission limits contained in the consent

decree, or significance thresholds for PSD modifications. We confirm to you that neither the

emission limits of the consent decree nor the significance thresholds for PSD modifications will

be exceeded as a result of adding the new dehydrator. Given the six month lead time required

for delivery and on the basis of the EPA’s position, we will proceed to order the dehydrator in

February 2011 and plan to install and operate the unit by the third quarter of 2011.

Resolute Natural Resources Company, LLC

1675 Broadway, Suite 1950, Denver, CO 80202

Voice: 303.534.4600 Fax: 303.623.3628
Over the course of the next few weeks, Resolute will provide your office with the

following information requested during our meeting, in further support of our long-pending PSD

permit application:

An updated Best Achievable Control Technology (BACT) analysis to document the

steps already taken by Resolute to increase compressor efficiency and reduce flaring;

Review and possibly update the air quality model previously submitted to EPA to

address the facility’s modeled compliance with recently adopted one-hour SO2

standard;

A demonstration that greenhouse gas emissions at the MCU facility are below 75,000

tons of CO2 equivalents per year; and,

Review and update, if appropriate, the Class I Area Impacts and Endangered Species

sections of the pending PSD application.

Thank you again for your time and consideration. Resolute and Navajo Nation Oil and

Gas Company remain committed to working with the EPA to obtain PSD and Title V permits

and terminate the MCU consent decree as quickly as possible. We plan to visit your office again

in early February 2011 to further facilitate the process and address any remaining questions,

comment or concerns. Please let us know in the meantime if you need any other information or

if we can assist you in expediting the process in any way.

Sincerely,

~RESOURCES COMPANY, LLC

Patrick E. Flynn

Vice President, Governmental & Corporate Affairs

Cc: Mr. Thomas Mintz, EPA

Mr. Wilson Groen, Navajo Nation Oil and Gas Company

Mr. John Jacus, Davis Graham and Stubbs LLP
Resoiute fvlcEImo Creek Unit TEG Dehydration Unit

98% TO control efficiency of still column & flash gas vapors

Dr~ r_*

We~

TEG Dehydration Flowsheet

Fuel

Emissions

VOC = 4~4 TPY

HAP = 2.2 TPY
GRI-GLYCa1c VERSION 4.0 - AGGREGATE CALCULATIONS REPORT

Page: 1

Case Name:

File Name:

Date:

MCU Plant Dehy 1 - Dec 6, 2010

C: \Program Files\GRI-GLYCa1c4\MCU Plantl.ddf

December 06, 2010

DESCRIPTION:

Description: MCU Plant Dehydrator Emissions

25 MMSCF/Day, 85 Deg F, 400 psig

3.0 gal/lb H20, Electric Pump

15.0 scfm Stripping Gas

Annual Hours of Operation: 8760.0 hours/yr

EMISSIONS REPORTS:

CONTROLLED REGENERATOR EMISSIONS

Component lbs/hr lbs/day tons/yr

Hydrogen Sulfide 0.0120 0.287 0.0524

Methane 0.1347 3.232 0.5899

Ethane 0.0907 2.178 0.3974

Propane 0.1041 2.498 0.4560

Isobutane 0.0216 0.518 0.0945

n-Butane 0.0699 1.677 0.3060

Isopentane 0.0229 0.550 0.1004

n-Pentane 0.0335 0.804 0.1466

Cyclopentane 0.0008 0.019 0.0034

n-Hexane 0.0133 0.320 0.0583

Cyclohexane 0.0278 0.668 0.1218

Heptanes 0.0126 0.303 0.0553

Methylcyclohexane 0.0234 0.562 0.1027

Benzene 0.1765 4.235 0.7729

Toluene 0.1681 4.035 0.7363

Ethylbenzene 0.0266 0.638 0.1165

Xylenes 0.1110 2.664 0.4862

C8+ Heavies 0.0158 0.380 0.0694

Total Emissions 1.0653 25.568 4.6662

Total Hydrocarbon Emissions 1.0534 25.281 4.6138

Total VOC Emissions 0.8280 19.871 3.6265

Total HAP Emissions 0.4955 11.892 2.1703

Total BTEX Emissions 0.4822 11.572 2.1120

UNCONTROLLED REGENERATOR EMISSIONS

Component lbs/hr lbs/day tons/yr

Hydrogen Sulfide

Methane

Ethane

Propane

I sobutane

0.5988

6.7356

4.5408

5.2260

1.0869

3.5271

1.1709

14.372

161.653

108.978

125.424

26.086

84.651

28.102

2.6228

29.5018

19.8885

22.8899

4.7606

15.4488

5.1285

n-Butane

Isopentane
Ethylben z ene

Xylenes

C8+ Heavies

Total Emissions

2.1059

9.4604

24.9597

85.6494

85.0506

73.7742

32.4645

31.7605

50.542

227.050

599.032

2055.585

2041.214

1770.582

779.149

762.253

9.2240

41.4366

109.3234

375.1443

372.5215

323 .1312

142.1946

139.1111

FLASH GAS EMISSIONS

Component

Hydrogen Sulfide

Methane

Ethane

Propane

I sobutane

E thylbenz ene

Xylenes

C8÷ Heavies

Total Emissions

lbs/hr lbs/day tons/yr

0.0041 0.098 0.0179

0.0135 0.324 0.0592

0.0284 0.680 0.1242

0.0538 1.292 0.2359

0.0130 0.312 0.0569

0.2239

0.1820

0.0132

0.0073

0.006

0.019

0.298

5.471 0.9985

5.373

4.369

0.317

0.174

0.9807

0.7973

0.0579

0.0318

FLASH TANK OFF GAS

Component

Hydrogen Sulfide

Methane

Ethane

Propane

Isobutane

lbs/hr

0.2042

0.6755

1.4176

2.6924

0.6494

2.2257

0.7024

lbs/day

4.901

16.212

34 .023

64.617

15.585

53.417

16.857

tons/yr

0.8945

2.9587

6.2092

11.7926

2.8442

9.7486

3 .0764

Page: 2

n-Pentane 1.7155 41.173 7.5141

Cyclopentane 0.0403 0.967 0.1765

n-Hexane 0.7040 16.896 3.0835

Cyclohexane 1.5076 36.183 6.6034

Heptanes 0.7233 17.359 3.1681

Methylcyclohexane 1.3524 32.457 5.9233

Benzene 9.5973 230.334 42.0360

Toluene 10.5969 254.326 46.4146

Total Hydrocarbon Emissions

Total VOC Emissions

Total HAP Emissions

Total BTEX Emissions

n-Butane

Isopentane

n-Pent ane

Cyclopentane

n-Hexane

Cyc 1 ohexane

Heptanes

Methylcyc lohexane

Benzene

Toluene

1.068

0.337

0.480

0.005

0.143

0.106

0.082

0.072

0.090

0.059

0.0445

0.0140

0.0200

0.0002

0.0059

0.0044

0.0034

0.0030

0.0037

0.0025

0.0003

0.0008

0.0124

0.2280

0.1950

0.0615

0.0875

0.0009

0.0261

0.0194

0.0150

0.0131

0.0164

0.0108

0.0012

0.0035

0.0543

Total Hydrocarbon Emissions

Total VOC Emissions

Total HAP Emissions

Total BTEX Emissions

n-Butane

Isopentane
Ethylbenz ene

Xylenes

C8÷ Heavies

Total Emissions

0. 0134

0.0399

0.6198

11.3989

0.321

0.958

14.875

273.574

0.0586

0.1748

2.7147

49.9272

11.1947

9.1015

0.6609

0.3635

268.672

218.437

15.863

8.725

49.0327

39.8647

2.8949

1.5923

GAS EMISSIONS V

lbs/hr

1.2773

1.0100

0.5087

0.4895

30.655

24.240

12.209

11.747

5.5945

4.4238

2.2282

2.1438

Page: 3

n-Pentane 0.9991 23.977 4.3758

Cyclopentane 0.0105 0.252 0.0459

n-Hexane 0.2974 7.138 1.3026

Cyclohexane 0.2212 5.308 0.9687

Heptanes 0.1708 4.099 0.7481

Methylcyclohexane 0.1495 3.588 0.6547

Benzene 0.1867 4.481 0.8179

Toluene 0.1235 2.965 0.5411

Total Hydrocarbon Emissions

Total VOC Emissions

Total HAP Emissions

Total BTEX Emissions

COMBINED REGENERATOR VENT/FLASH

Component lbs/day tons/yr

Hydrogen Sulfide 0.0160 0.385 0.0702

Methane 0.1482 3.557 0.6491

Ethane 0.1191 2.858 0.5216

Propane 0.1579 3.791 0.6918

Isobutane 0.0346 0.830 0.1514

n—Butane 0.1144 2.745 0.5010

Isopentane 0.0370 0.887 0.1619

n-Pentane 0.0535 1.283 0.2342

Cyclopentane 0.0010 0.024 0.0043

n-Hexane 0.0193 0.462 0.0844

Cyclohexane 0.0322 0.774 0.1412

Heptanes 0.0161 0.385 0.0703

Methylcyclohexane 0.0264 0.634 0.1157

Benzene 0.1802 4.325 0.7893

Toluene 0.1706 4.094 0.7472

Ethylbenzene 0.0269 0.645 0.1177

Xylenes 0.1118 2.683 0.4897

C8+ Heavies 0.0282 0.678 0.1237

Total Emissions 1.2933 31.039 5.6647

Total Hydrocarbon Emissions

Total VOC Emissions

Total HAP Emissions

Total BTEX Emissions

COMBINED REGENERATOR VENT/FLASH GAS EMISSION CONTROL REPORT:

Component Uncontrolled Controlled % Reduction

tons/yr tons/yr

Hydrogen Sulfide 3.5173 0.0702 98.00

Methane 32.4605 0.6491 98.00

Ethane 26.0978 0.5216 98.00

Propane 34.6825 0.6918 98.01

Isobutane 7.6048 0.1514 98.01
Page: 4

421.5542

362.9959

145.0895

140.7034

Condenser Outlet Temperature:

Condenser Pressure:

Condenser Duty:

Hydrocarbon Recovery:

Produced Water:

Ambient Temperature:

Excess Oxygen:

Combustion Efficiency:

Supplemental Fuel Requirement:

Component

Hydrogen Sulfide

Methane

Ethane

Propane

I sobutane

Ethylbenz ene

Xyl ene s

C8+ Heavies

140.00

12.30

5. 84e-00l

2 .61

4 .15

80.00

200.00

98.00

5. 84e-001

1.98%

1.96%

1.95%

1.92%

1.89%

1.84%

1.75%

1.73%

1.84%

1.59%

1.26%

1.17%

0.06%

5.5945

4.4238

2.2282

2.1438

98.02%

98.04%

98. 05%

98.08%

98 .11%

98.16%

98.25%

98.27%

98.16%

98.41%

98.74%

98.83%

99.94%

98.67

98.78

98.46

98.48

n-Butane

Isopentane

n- Pentane

Cyclopentane

n-Hexane

Cyc 1 ohexane

Heptanes

Methyl cyc lohexane

Benzene

Toluene

Ethylben z ene

Xylenes

C8÷ Heavies

Total Emissions

Total Hydrocarbon Emissions

Total VOC Emissions

Total HAP Emissions

Total BTEX Emissions

25.1974

8.2049

11.8899

0.2224

4.3862

7.5721

3 .9162

6.5781

42.8539

46.9556

9.2825

41.6114

112.0381

0.5010

0.1619

0.2342

0.0043

0.0844

0.1412

0.0703

0.1157

0.7893

0.7472

0.1177

0.4897

0.1237

98.01

98.03

98.03

98.06

98.08

98.14

98.20

98.24

98.16

98.41

98.73

98.82

99.89

425.0715 5.6647 98.67

EQUIPMENT REPORTS:

CONDENSER AND COMBUSTION DEVICE

deg. F

psia

MM BTU/hr

bbls/day

bbls/day

deg. F

MM BTU/hr

Emitted Destroyed

2.00%

2.00%

2.00%

1.99%

1.99%

98 . 00%

98. 00%

98.00%

98. 01%

98.01%

n-Butane

I sopentane

n- Pentane

Cyclopentane

n-Hexane

Cyc 1 ohexane

Heptanes

Methyl cyclohexane

Benzene

Toluene
Page: 5

ABSORBER

NOTE: Because the Calculated Absorber Stages was below the minimum

allowed, GRI-GLYCa1c has set the number of Absorber Stages to 1.25

and has calculated a revised Dry Gas Dew Point.

Calculated Absorber Stages:

Calculated Dry Gas Dew Point:

1 .25

5.99 lbs. H20/MMSCF

Temperature:

Pressure:

Dry Gas Flow Rate:

Glycol Losses with Dry Gas:

Wet Gas Water Content:

Calculated Wet Gas Water Content:

Specified Lean Glycol Recirc. Ratio:

85.0

400.0

25.0000

0.1217

Saturated

81.91

3 . 00

deg. F

ps ig

MMSCF/day

lb/hr

lbs. H20/MMSCF

gal/lb H2O

Component

Water

Carbon Dioxide

Hydrogen Sulfide

Nitrogen

Methane

Remaining

in Dry Gas

7.30%

99.88%

99.14%

99.99%

99.99%

Absorbed

in Glycol

92.70%

0.12%

0. 86%

0. 01%

0. 01%

Ethane

Propane

I sobutane

n-Butane

Isopentane

n- Pentane

Cyclopentane

n-Hexane

Cyc lohexane

Heptanes

Methylcyclohexane

Benzene

Toluene

Ethylbenzene

Xyl ene s

C8+ Heavies

99.97%

99.94%

99.90%

99.87%

99.85%

99.81%

99.21%

99.67%

98.62%

99.33%

98.29%

88.68%

83.14%

75.85%

67.50%

97.48%

0.03%

0.06%

0.10%

0.13%

0.15%

0.19%

0.79%

0.33%

1.38%

0.67%

1.71%

11.32%

16.86%

24 .15%

32.50%

2 .52%

Flash Control:

Flash Control Efficiency:

Flash Temperature:

Flash Pressure:

Combustion device

98.00 %

100.0 deg. F

75.0 psig

Component

Water

Carbon Dioxide

Hydrogen Sulfide

Nitrogen

Methane

Left in

Glycol

99.96%

27.38%

72.04%

2.50%

2.64%

9.33%

20.62%

Removed in

Flash Gas

0. 04%

72 .62%

27. 96%

97.50%

97.36%

90.67%

79.38%

FLASH TANK

Ethane

Propane
Page: 6

Isobutane 29.29% 70.71%

n-Butane 36.11% 63.89%

Isopentane 41.11% 58.89%

n-Pentane 46.65% 53.35%

Cyclopentane 77.22% 22.78%

n-Hexane 62.80% 37.20%

Cyclohexane 86.85% 13.15%

Heptanes 78.55% 21.45%

Methylcyclohexane 89.97% 10.03%

Benzene 98.17% 1.83%

Toluene 98.93% 1.07%

Ethylbenzene 99.43% 0.57%

Xylenes 99.63% 0.37%

C8+ Heavies 97.80% 2.20%

REGENERATOR

Regenerator Stripping Gas:

Dry Product Gas

Stripping Gas Flow Rate: 15.0000 scfm

Remaining Distilled

Component in Glycol Overhead

Water 29.29% 70.71%

Carbon Dioxide 0.00% 100.00%

Hydrogen Sulfide 0.00% 100.00%

Nitrogen 0.00% 100.00%

Methane 0.00% 100.00%

Ethane 0.00% 100.00%

Propane 0.00% 100.00%

Isobutane 0.00% 100.00%

n-Butane 0.00% 100.00%

Isopentane 1.22% 98.78%

n-Pentane 1.07% 98.93%

Cyclopentane 0.65% 99.35%

n-Hexane 0.80% 99.20%

Cyclohexane 3.69% 96.31%

Heptanes 0.64% 99.36%

Methylcyclohexane 4.45% 95.55%

Benzene 5.09% 94.91%

Toluene 7.99% 92.01%

Ethylbenzene 10.46% 89.54%

Xylenes 12.95% 87.05%

C8÷ Heavies 12.29% 87.71%

STREAM REPORTS:

WET GAS STREAM

Temperature: 85.00 deg. F

Pressure: 414.70 psia

Flow Rate: 1.04e+006 scfh
Page: 7

C8+ Heavies 2.lOe-001 9.83e+002

100.00 1.07e+005

DRY GAS STREAM

Temperature:

Pressure:

Flow Rate:

85.00 deg. F

414.70 psia

1.04e+006 scfh

Component Conc. Loading

(vol%) (lb/hr)

Ethane

Propane

Isobutane

n-Butane

Isopentane

n-Pent ane

Cyclopentane

n-Hexane

Cyc 1 ohexane

Heptanes

6. 16e+000

4. 33e+000

5. 93e-001

1. 65e+000

4. Ole-001

5. 09e+003

5. 24e+003

9. 47e+002

2. 63e+003

7. 95e+002

3 . 05e-002

3. 55e-002

2. 08e-002

2. 28e-003

6. 76e-003

8. 22e+001

7. 62e+001

5. 26e+001

6. 64e+000

1. 97e+001

C8+ Heavies 2.05e-001 9.58e+002

Conc. Loading

(vol%) (lb/hr)

1.73e-001 8.56e+001

6.68e+001 8.09e+004

9.02e-002 8.47e+001

1.21e+000 9.31e+002

1.76e+001 7.78e+003

Component

Water

Carbon Dioxide

Hydrogen Sulfide

Nitrogen

Methane

Ethane

Propane

I sobutane

n-Butane

I sopentane

n-Pent ane

Cyclopentane

n-Hexane

Cyc lohexane

Heptanes

Methyl cyc lohexane

Benzene

Toluene

6. 15e+000

4. 32e+000

5. 92e-001

1. 64e÷000

4. Ole-001

4. 97e-001

2. 99e-003

1. Ole-001

5. 09e-002

4 .29e-002

3. 09e-002

3 . 99e-002

2. 50e-002

5. 09e+003

5. 24e+003

9 .48e+002

2. 63e+003

7. 96e+002

9. 87e+002

5. 78e+000

2. 39e+002

1. 18e+002

1. 18e+002

8. 37e+001

8. 59e+001

6. 33e+001

Ethylbenzene° 2.99e-003 8.75e÷000

Xylenes 9.98e-003 2.92e+001

Total Components

Water 1.26e-002 6.24e+000

Carbon Dioxide 6.69e+001 8.08e+004

Hydrogen Sulfide 8.97e-002 8.39e+00l

Nitrogen 1.21e+000 9.31e+002

Methane 1.77e+001 7.78e+003

4.98e-001 9.86e+002

2.98e-003 5.74e+000

1.Ole-001 2.38e÷002

5.03e-002 1.16e+002

4.28e-002 1.18e+002

Methyl cyc 1 ohexane

Benzene

Toluene

Ethylbenzene

Xyl ene s

Total Components 100.00 1.07e+005
Page: 8

LEAN GLYCOL STREAM

Temperature: 85.00 deg. F

Flow Rate: 3.89e+000 gpm

Methane

Ethane

Propane

I sobutane

n-Butane

2. 85e-002

6 .4le-002

1. 39e-001

3. 77e-002

1. 43e-OOl

6. 94e-001

1. 56e+000

3. 39e+000

9. 18e-001

3. 48e+000

4. 89e-002

7. 68e-002

1. 89e-003

3 .28e-002

6. 90e-002

]~. 19e+000

1. 87e+000

4. 61e-002

7. 99e-001

1. 68e+000

Conc.

(wt%)

9. 82e+001

1. 50e÷000

4 .43e-010

Loading

(lb/hr)

2. 15e-i-003

3 .28e+OOl

9. 69e-009

3.34e-012 7.30e-Oll

3.92e-013 8.58e-012

Component

TEG

Water

Carbon Dioxide

Hydrogen Sulfide

Nitrogen

Methane

Ethane

Propane

Isobutane

n-Butane

Isopentane

n-Pent ane

Cyclopentane

n-Hexane

Cyc 1 ohexane

Heptanes

Methyl cyclohexane

Benzene

Toluene

Ethylbenzene

Xylenes

C8+ Heavies

Total Components

RICH GLYCOL STREAM

Temperature:

Pressure:

Flow Rate:

NOTE: Stream

1. 06e-018

3 .37e-008

6. 32e-009

1 .26e-009

3. 95e-009

2. 73e-004

4 .28e-004

1. 05e-005

1. 83e-004

2 .46e-003

1. 82e-004

2. 73e-003

2. 34e-002

4. 19e-002

1. 12e-002

6 .42e-002

1. 55e-001

100.00

2. 33e-017

7. 37e-007

1. 38e-007

2. 76e-008

8. 65e-008

5. 97e-003

9. 37e-003

2. 30e-004

4. OOe-003

5. 39e-002

3. 99e-003

5. 97e-002

5. 12e-001

9. l6e-00l

2. 45e-001

1. 41e+000

3 .38e+000

2. 19e+003

85.00 deg. F

414.70 psia

4.43e+000 gpm

has more than one phase.

Component

TEG

Water

Carbon Dioxide

Hydrogen Sulfide

Nitrogen

Conc. Loading

(wt%) (lb/hr)

8 . 81e+001

4 . 60e+000

3 . 98e+000

3 . OOe-002

3 .49e-003

2. 15e+003

1. 12e+002

9. 69e+001

7. 31e-001

8. 51e-002

Isopentane

n-Pent ane

Cyclopentane

n-Hexane

Cyclohexane

Heptanes 3.27e-002 7.96e-001
Page: 9

Methylcyclohexane 6.11e-002 1.49e+000

Benzene 4.20e-00l l.02e+00l

Toluene 4.75e-001 1.16e+001

Ethylbenzene 9.68e-002 2.36e+000

Xylenes 4.47e-001 1.09e+001

C8+ Heavies 1.15e+000 2.81e+00l

Temperature:

Pressure:

Flow Rate:

Total Components

100.00 deg. F

89.70 psia

7.03e+002 scfh

100.00 2.44e+003

Component Conc. Loading

(vol%) (lb/hr)

Ethane

Propane

I sobutane

n-Butane

I sopentane

2. 55e+000

3 .30e+000

6. 03e-OOl

2. 07e+000

5. 26e-001

1. 42e+000

2. 69e+000

6 .49e-OOl

2. 23e+000

7. 02e-001

n -Pentane

Cyclopentane

n-Hexane

Cyclohexane

Heptanes

7 .48e-001

8 . 08e-003

1. 86e-001

1 .42e-001

9 .20e-002

9. 99e-001

1. 05e-002

2. 97e-001

2 .21e-001

1. 71e-001

8 .22e-002

1. 29e-001

7. 24e-002

6 . 80e-003

2 . 03e-002

1 .49e-00l

1. 87e-001

1. 24e-OOl

1. 34e-002

3. 99e-002

C8+ Heavies 1.96e-001 6.20e-00l

Total Components 100.00 8.19e+001

FLASH TANK GLYCOL STREAM

Temperature: 100.00 deg. F

Flow Rate: 4.24e+000 gpm

TEG

Water

Carbon Dioxide

Hydrogen Sulfide

Nitrogen

Conc. Loading

(wt~) (lb/hr)

Methane

Ethane

Propane

I sobutane

n-Butane

7. 76e-004

6. 20e-003

2. 97e-002

1. 14e-002

5 .34e-002

1. 83e-002

1. 46e-001

6. 99e-001

2. 69e-001

1. 26e+000

FLASH TANK OFF GAS STREAM

Water 1.29e-00l 4.30e-002

Carbon Dioxide 8.64e+00l 7.04e+001

Hydrogen Sulfide 3.24e-001 2.04e-001

Nitrogen l.60e-OOl 8.29e-002

Methane 2.27e+000 6.76e-001

Methylcyclohexane

Benzene

Toluene

E thylbenzene

Xylenes

Component

9. lle+001

4 . 76e+000

1. 13e+000

2 .23e-002

9. 02e-005

2. 15e+003

1. 12e+002

2. 65e+001

5 .26e-001

2 .12e-003
Page: 10

Xylenes

C8+ Heavies

Total Components

2. 08e-002

3. 71e-002

1. 51e-003

2. 13e-002

6. 20e-002

2. 66e-002

5. 69e-002

4 .26e-001

4. 87e-001

9. 96e-002

4. 60e-001

1. l7e+000

100.00

4. 90e-001

8. 73e-001

3. 56e-002

5. 02e-001

1 .46e+000

6. 26e-001

1. 34e+000

1. OOe+OOl

1. 15e+001

2. 35e+000

1. 08e+001

2. 75e+001

2. 36e+003

FLASH GAS EMISSIONS

Flow Rate: 1.26e÷003 scfh

Control Method: Combustion Device

Control Efficiency: 98.00

Methylcyclohexane

Benzene

Toluene

Ethylbenzene

Xylenes

Temperature:

Pressure:

Flow Rate:

212.00 deg. F

14.70 psia

3.03e+003 scfh

Component Conc. Loading

(vol%) (lb/hr)

Isopentane

n-Pent ane

Cyclopentane

n-Hexane

Cyc lohexane

Heptanes

Methyl cyclohexane

Benzene

Toluene

Ethylbenzene

Conc. Loading

(vol%) (lb/hr)

2.92e+001 l.76e+001

7.05e+OOl l.03e+002

3.60e-003 4.08e-003

8.88e-002 8.29e-002

2.53e-002 1.35e-002

Component

Water

Carbon Dioxide

Hydrogen Sulfide

Nitrogen

Methane

Ethane

Propane

I sobutane

n-Butane

Isopentane

n-Pent ane

Cyclopentane

n-Hexane

Cyclohexane

Heptanes

2 .83e-002

3 .66e-002

6. 70e-003

2. 30e-002

5. 84e-003

8. 31e-003

8. 97e-005

2. 07e-003

1. 58e-003

1. 02e-003

9. 13e-004

1 .43e-003

8. 04e-004

7. 56e-005

2 .26e-004

2. 84e-002

5. 38e-002

1. 30e-002

4 .45e-002

1. 40e-002

2. OOe-002

2. lOe-004

5. 95e-003

4. 42e-003

3 .42e-003

2. 99e-003

3 .73e-003

2. 47e-003

2. 68e-004

7. 98e-004

C8+ Heavies 2.18e-003 1.24e-002

Total Components

REGENERATOR OVERHEADS STREAM

100.00 1.21e+002

Water 5.51e+001 7.93e+OOl

Carbon Dioxide 2.74e+001 9.64e+001
Page: 11

2 .20e-0Ol

3. 61e-00l

5. 26e+000

1. 89e+000

1. 48e+000

2 .34e-00l

7. 60e-00l

2. 03e-00l

2. 98e-OOl

7. 19e-003

1. 02e-00l

2 .24e-O01

9. 04e-002

Methylcyclohexane l.72e-O0l

Benzene l.54e+000

Toluene l.44e+000

Ethylbenzene 2.48e-001

Xylenes l.12e+000

C8+ Heavies

Total Components

CONDENSER RECOVERED OIL STREAM

5. 99e-OO1

8. 07e-OOl

6. 74e+000

4. 54e+000

5. 23e÷000

1. 09e+000

3. 53e+000

1. 17e+000

1. 72e+000

4. 03e-002

7. 04e-00l

1. 51e+000

7. 23e-00l

1. 35e÷000

9. 60e+000

1. 06e+OOl

2. lle+000

9. 46e+000

Hydrogen Sulfide

Nitrogen

Methane

Ethane

Propane

Isobutane

n-Butane

Isopentane

n- Pentane

Cyclopentane

n-Hexane

Cyclohexane

Heptanes

C8+ Heavies l.83e÷000 2.50e+OOl

Total Components 100.00 2.62e+002

CONDENSER PRODUCED WATER STREAM

Temperature: 140.00 deg. F

Flow Rate: l.2le-OOl gpm

Component Conc. Loading

(wt%) (lb/hr) (ppm)

Water 9.99e+00l 6.05e+OOl 999436.

Carbon Dioxide 3.03e-002 l.84e-002 303.

Hydrogen Sulfide 6.29e-004 3.8le—004 6.

Nitrogen 7.55e-006 4.58e-006 0.

Methane 1.16e-004 7.04e-005 1.

Ethane 8.58e-005 5.20e-005 1.

Propane l.lSe-004 6.96e-005 1.

Isobutane l.27e-005 7.71e-006 0,

n-Butane 5.35e-005 3.24e-005 1.

Isopentane 1.20e-005 7.29e-006 0.

n-Pentane 1.87e-005 1.l3e-005 0.

Cyclopentane 2.84e-006 l.72e-006 0.

n-Hexane 5.95e-006 3.60e-006 0.

Cyclohexane 6.56e-005 3.98e-005 1.

Heptanes 3.06e-006 l.85e-006 0.

Methylcyclohexane 2.60e-005 l.58e-005 0.

Benzene l.06e-002 6.44e-003 106.

Toluene 8.07e-003 4.89e-003 81.

Ethylbenzene 9.36e-004 5.67e-004 9.

Xylenes 5.30e-003 3.2le-003 53.

l.97e-006 l.l9e-006 0.

100.00 6.06e+001 1000000.

Temperature: 140.00 deg. F

Flow Rate: 7.62e-002 gpm
Page: 12

n-Pentane

Cyclopentane

n-Hexane

CyC 1 ohexane

1-leptanes

1. 28e-001

4 . 70e-003

1. 17e-001

3 . 61e-001

2. 82e-001

4. 15e—002

1. 52e-003

3. 79e-002

1. 17e-001

9. 15e-002

5. 57e-001

2. 37e+000

6. 74e+000

2. 39e+000

1. 21e+001

7. 46e+001

100.00

CONDENSER VENT STREAM

Temperature: 140.00 deg. F

Pressure: 12.30 psia

Flow Rate: 1.67e+003 scfh

1. 81e-001

7. 67e-001

2. 19e+000

7. 76e-001

3. 91e+000

2. 42e+001

3. 24e+001

Conc. Loading

(vol%) (lb/br)

Ethane

Propane

I sobutane

n-Butane

Isopentane

n-Pent ane

Cyclopentane

n-Hexane

Cyclohexane

Heptanes

3 . 43e+000

2. 68e+000

4. 22e-001

1. 37e+000

3 . 61e—001

5. 27e-001

1. 26e-002

1. 76e-001

3 .76e-001

1 .43e-001

4. 54e+000

5. 20e+000

1. 08e+000

3. 49e+000

1. 15e+000

1. 67e÷000

3. 88e-002

6. 66e-001

1. 39e+000

6. 32e-001

Methylcyclohexane

Benzene

Toluene

E thylbenz ene

Xylenes

2. 71e-001

2. 57e+000

2. 07e+000

2. 85e-001

1. 19e÷000

1. 17e+000

8. 82e+000

8. 41e+000

1. 33e+000

5. 55e+000

C8+ Heavies 1.06e-001 7.92e-OOl

Component Conc. Loading

(wt%) (lb/hr)

Water 3.27e-002 1.06e—002

Carbon Dioxide l.14e-001 3.69e-002

Hydrogen Sulfide 2.47e-003 7.99e-004

Nitrogen 1.41e-004 4.58e-005

Methane 3.47e-003 l.13e-003

Ethane 1.23e-002 3.98e-003

Propane 6.46e-002 2.09e-002

Isobutane 2.47e-002 8.OOe-003

n-Butane 1.05e-001 3.39e-002

Isopentane 7.59e-002 2.46e-002

Methyl cyc lohexane

Benzene

Toluene

Ethylbenz ene

Xylenes

C8+ Heavies

Total Components

Component

Water 2.37e+001 1.87e+001

Carbon Dioxide 4.98e+001 9.63e+001

Hydrogen Sulfide 3.99e-001 5.98e-001

Nitrogen 6.55e-001 8.07e-001

Methane 9.54e+000 6.73e+000

Total Components 100.00 1.69e+002
Page: 13

COMBUSTION DEVICE OFF GAS STREAM

Temperature:

Pressure:

Flow Rate:

1000.00 deg. F

14.70 psia

8.66e+000 scfh

Cyc 1 ohexane

1-leptanes

Methyl cyclohexane

Benzene

To luene

1. 45e+000

5. 53e-001

1. 05e+000

9. 90e÷000

8. OOe+000

2. 78e-002

1. 26e-002

2. 34e-002

1. 76e-001

1. 68e-00l

Ethylbenz ene

Xylenes

C8+ Heavies

Total Components

1. l0e+000

4. 58e+000

4. 08e-OOl

100.00

2. 66e-002

1. lle-00l

1. 58e-002

1. 07e+000

Component Conc. Loading

(vol%) (lb/hr)

Hydrogen Sulfide l.54e÷000 l.20e-002

Methane 3.68e÷00l l.35e-OOl

Ethane l.32e+OOl 9.07e-002

Propane l.03e+OOl l.04e-00l

Isobutane l.63e÷000 2.l6e-002

n-Butane 5.27e+000 6.99e-002

Isopentane l.39e+000 2.29e-002

n-Pentane 2.03e+000 3.35e-002

Cyclopentane 4.85e-002 7.75e-004

n-Hexane 6.78e-00l l.33e-002