Spreadsheet Note:

The spreadsheet is setup to pick up flaring of all flares and during FGRU trip or an exceedance of FGRU pumping capacity (going to flare caused by upset, shutdown, etc.)

For FGRU :

E10FI9239.PV read the flow of flare gas recovered and routed to the fuel system.

For Flares:

E10PC9471.PV reads the pressure of flare header (in H2O)

E10LI9220.PV shows the designated water seal level in 1st stage flare K.O. Drum (in H2O).

Flow estimation is set at two conditions:

If FGRU is in service, the flow rate is estimated with the setup equations for all flares.

The average flare base load used in constructing this sheet was 434016 SCFD

36" Flow Equation:

36" flare flow/minute = 65.1MSCFD+896.91MSCFD(flare pressure^0.5-seal level^0.5)/1440 minutes

If FGRU is down, any off gas discharge to flare header would be flaring at once the water seal is exceeded in the 36" Flare 

and the last flow rate from E10FI9239.PV would be used as the flaring flow rate until FGRU back in service.

The flow rate to the 24" flare is determined by using flow indicator E29FC5134.PV. Any flow on this flow indicator is an 

idication of flare gas bypassing the fuel system to the 24" flare.

The slope (896.91 MSCFD) for the 36" flare is based on the average base load and the average delta P between the flare 

pressure and the seal level in " H2O for the flaring event starting 1/21/08 and ending 1/22/08

The intercept (65.1 MSCFD) for the 36" flare flow calculation is 15% of base load and is used to ensure calculation is 

conservative from a release stand point

5/17/2012 Page 1of 1 0900006481012aed.xls Documentation
East Plant - Flexible Limits

Current date and time: 7/10/2009 10:22

One week ago: 7/3/2009 10:22

Allowable 

CAP (lb/hr)

Last Wk's 

Avg (lb/hr) % of CAP Current (lb/hr) % of CAP

EPNOXCAP.#1 E. Plant hrly NOx Cap Calc 427.79 74.83 17.49 71.88 16.80

EPCO-CAP.#1 E. Plant hrly CO Cap Calc 297.78 25.32 8.50 23.37 7.85

EPSO2CAP.#1 E. Plant hrly SO2 Cap Calc 275.42 9.92 3.60 7.10 2.58

EPPM-CAP.#1 E. Plant hrly PM Cap Calc 50.00 27.98 55.96 28.13 56.26

EPVOCCAP.#1 E. Plant hrly VOC Cap Calc 639.6 19.94 3.12 20.09 3.14

NOTES: (1) Any Emissions from Flaring must be added to the actual CAP (lb/hr) values to calculate Total Emissions.

(2) The VOC allowable Cap includes only combustion sources (does not include tanks, fugitives, cooling towers, loading, etc.)

5/17/2012 1:37 PM 0900006481012aed.xls CAP - Flexible Permit
Calculation of Flare Emissions: West Plant

Date and time when flaring began: 7/3/2009 0:00 Date of Report 7/10/2009 0:00

Date and time when flaring ended: 7/3/2009 6:15 Report Author S. Peters

FIN: E01FL100

EPN: FL-97

RN No.: RN100235266

Incident: Air Account No: NE-0122-D

Time set up earlier: 0 min

36" Flare Destruction Effiency: 98 % Time interval: 1 min

24" Flare Destruction Efficiency: 98 % Time prolong: 0 min

Plant Site: East

* Use 701FCD sample on the "36 Inch Flare" sheet.

* Use 714FSF sample on the "24 Inch Flare" sheet. If not available use 721 MFD.

* If in the sample results ppmv is used as a unit of measure the unit will need to be converted to mol% for the purposes of the calculation

* For all species of butanes, butenes, hexanes, pentanes and octanes aggregate the total for each family for a RQ determination.

* If a smoking flare is noticed adjust the destruction efficiency on the flare calcs to account for incomplete combustion (normally 98%, if smoking adjust to 93%).

* TCEQ Technical Supplement 4 for flare (TCEQ publication RG-360A) recommends 93% destruction efficiency for smoking flares.

Average flow to flare: - MSCFH

24 Inch Flare Duration of flaring: - min

Total amount flared: - SCF

Average flow to flare: 672 MSCFD

36 Inch Flare Duration of flaring: 26 min

Total amount flared: 12,134 SCF

Summary of Flare Emissions Reportable Quantity

24 Inch Flare 36 Inch Flare Total

CH4 (Methane): 0.0 0.9 0.9 lb Green house effect

CH2 (Ethane): 0.0 0.3 0.3 lb Green house effect

C2H4 (Ethylene): 0.0 0.2 0.2 lb 5,000

C3H8 (Propane): 0.0 0.6 0.6 lb 5,000

C3H6 (Propylene): 0.0 0.4 0.4 lb 5,000

I-C4 (iso-Butane): 0.0 0.4 0.4 lb See butanes (any isomer)

nC4 (n-Butane): 0.0 1.5 1.5 lb See butanes (any isomer)

C4=1 (1-Butene): 0.0 0.0 0.0 lb See butenes (any isomer)

IC4= (iso-Butene): 0.0 0.1 0.1 lb See butenes (any isomer)

TC4= (trans-2-Butene): 0.0 0.0 0.0 lb See butenes (any isomer)

CC4= (cis-2-Butene): 0.0 0.0 0.0 lb See butenes (any isomer)

C4== (1,3-Butadiene): 0.0 0.0 0.0 lb 10

IC5 (iso-Pentane): 0.0 4.4 4.4 lb See pentanes (any isomer)

NC5 (n-Pentane): 0.0 0.5 0.5 lb See pentanes (any isomer)

C6+ (Hexane plus) 0.0 0.8 0.8 lb 5,000

Butanes (any isomer): 0.0 1.9 1.9 lb 5,000

Butenes (any isomer): 0.0 0.2 0.2 lb 5,000

Pentanes (any isomer): 0.0 0.9 0.9 lb 5,000

Benzene: 0.0 0.0 0.0 lb** 10

SO2 : 0.0 46.9 46.9 lb 500

Total NOx : 0.0 0.9 0.9 lb 200

CO : 0.0 4.4 4.4 lb 5,000

H2S: 0.0 0.5 0.5 lb 100

Destruction efficiencies and flare factors are from the "July 1996 TNRCC Technical Guidance Package for Flare Sources"

Assume C6+ compounds are 3.3 % benzene.

This spread sheet is setup to pick up flaring time for 24 and 36 Inch flares. Please make the necessary agency notifications in time.

Enter Date & time, time frame parameters, 

then press F9 to Calculate.

Flare Release Summary

5/17/2012 Page 1of 1 0900006481012aed.xls Main
Flaring Flow Rate Calculation

Date and time when flaring began: 7/3/2009 0:00 Time set up earlier: min E10FI9239.PV

Date and time when flaring ended: 7/3/2009 6:15 Time interval: 1 min 1st flare flow equation constant

Time prolong: min 65.1 Intercept

36" Flare efficiency: 98 % 896.91 Slope

24" Flare efficiency: 98 %

Average flow to flare: 672 MSCFD 9/18/2013 13:36

36 Inch Flare Duration of flaring: 26 min

Total amount flared: 12,134 SCF

Duration of flaring: - MSCFD

24 Inch Flare Duration of flaring: - min

Total amount flared: - SCF

36 Inch Flare 24 Inch Flare 7/3/2009 5:06

E10PC9471.PV E10LI9220.PV Flaring (min) E29FC5134.PV E29FC5134.OP Flaring (min)

Flare Gas Header Water Seal Drum V110 26 12.134

Recovered Gas to 

24 Flare

Recovered Gas to 24 

Flare 36 Inch 24 Inch

Date / Time inH2O inH2O counter MSCF SCFM % counter SCFM Indicator Indicator

7/3/2009 0:00 15.03 52.33 65.35

7/3/2009 0:01 15.05 52.31 63.55

7/3/2009 0:02 15.07 52.31 57.81

7/3/2009 0:03 15.05 52.31 60.11

7/3/2009 0:04 15.05 52.31 63.55

7/3/2009 0:05 15.04 52.31 63.55

7/3/2009 0:06 15.06 52.31 61.70

7/3/2009 0:07 15.06 52.31 61.70

7/3/2009 0:08 15.05 52.31 59.79

7/3/2009 0:09 15.03 52.31 59.79

7/3/2009 0:10 15.05 52.31 59.79

7/3/2009 0:11 15.00 52.31 59.79

7/3/2009 0:12 14.99 52.31 65.35

7/3/2009 0:13 14.99 52.31 61.70

7/3/2009 0:14 15.01 52.31 61.70

7/3/2009 0:15 15.07 52.31 59.79

7/3/2009 0:16 15.04 52.31 61.70

7/3/2009 0:17 15.01 52.31 67.10

7/3/2009 0:18 15.01 52.31 67.10

7/3/2009 0:19 15.04 52.31 63.55

7/3/2009 0:20 15.02 52.31 63.55

7/3/2009 0:21 15.00 52.31 65.35

7/3/2009 0:22 15.01 52.31 63.55

7/3/2009 0:23 15.02 52.31 63.55

7/3/2009 0:24 15.01 52.31 65.35

7/3/2009 0:25 15.00 52.31 63.55

7/3/2009 0:26 15.01 52.31 65.35

7/3/2009 0:27 15.03 52.31 61.70

7/3/2009 0:28 15.03 52.31 61.70

7/3/2009 0:29 15.03 52.31 67.10

7/3/2009 0:30 15.04 52.31 61.70

7/3/2009 0:31 14.98 52.30 59.79

7/3/2009 0:32 15.03 52.31 59.79

7/3/2009 0:33 15.00 52.31 59.79

7/3/2009 0:34 15.00 52.31 65.35

7/3/2009 0:35 15.00 52.31 65.35

7/3/2009 0:36 15.05 52.31 63.16

7/3/2009 0:37 15.04 52.31 59.79

7/3/2009 0:38 15.01 52.31 63.55

7/3/2009 0:39 14.99 52.31 67.10

7/3/2009 0:40 15.01 52.31 59.79

7/3/2009 0:41 15.00 52.31 59.79

7/3/2009 0:42 15.00 52.31 59.79

7/3/2009 0:43 15.02 52.31 57.81

7/3/2009 0:44 15.04 52.31 61.70

7/3/2009 0:45 15.03 52.31 59.79

7/3/2009 0:46 15.00 52.31 65.35

7/3/2009 0:47 15.01 52.31 61.70

7/3/2009 0:48 15.02 52.31 63.55

7/3/2009 0:49 15.00 52.31 61.70

7/3/2009 0:50 15.07 52.31 65.35

7/3/2009 0:51 15.06 52.31 65.35

7/3/2009 0:52 15.06 52.31 61.70

7/3/2009 0:53 15.05 52.31 61.70

7/3/2009 0:54 15.05 52.31 63.55

7/3/2009 0:55 15.05 52.31 61.70

7/3/2009 0:56 15.02 52.31 61.70

7/3/2009 0:57 15.04 52.31 62.04

7/3/2009 0:58 15.03 52.31 65.35

7/3/2009 0:59 15.00 52.31 61.70

7/3/2009 1:00 14.99 52.31 61.70

Flare Release Summary

5/17/2012 Page 1of 1 0900006481012aed.xls Flare Flow
Calculation of Flare Emissions: West Plant

Date and time when flaring began:

Date and time when flaring ended:

Incident: 0 Time set up earlier:

Time interval:

Time prolong:

Volume of Flare Piping and Equipment=

Total Release to Flare = 12,134 SCF

MW

Component vol % SCF lb-mol (lb/lb-mol)

#H2:Hydrogen,mol% 38.04 4,615 12.16 2.02

#N2: Nitrogen 32.55 3,949 10.41 28.01

#O2: Oxygen 0.00 - 0.00 32

#CO: Carbon Monoxide 0.00 - 0.00 28.01

#CO2: Carbon diOxide 0.06 8 0.02 44.01

#H2S: Hydrogen Sulfi 2.34 284 0.75 34.08

#C1: Methane 8.68 1,054 2.78 16.04

#C2=: Ethylene 1.15 140 0.37 28.06

#C2: Ethane 1.43 174 0.46 30.08

#C3: Propane 2.17 263 0.69 44.11

#C3=: Propylene 1.45 175 0.46 42.09

#IC4: iso-Butane 1.13 137 0.36 58.14

#IC4=: iso-Butene 0.16 19.54 0.05 56.12

#C4=1: 1-Butene 0.10 12.26 0.03 56.12

#C4==: 1,3-Butadiene 0.00 - 0.00 54.09

#NC4: n-Butane 4.08 495 1.31 58.14

#TC4=: trans-2-Buten 0.12 14.68 0.04 56.1

7/3/2009 0:00

7/3/2009 6:15

#TC4=: trans-2-Buten 0.12 14.68 0.04 56.1

#CC4=: cis-2-Butene 0.10 12 0.03 56.1

#IC5: iso-Pentane 9.47 1,148 3.03 72.15

#NC5: n-Pentane 1.01 122 0.32 72.15

#C6+: Hexane plus 1.43 174 0.46 86.17

Benzene 0.00 - - 78.11

Total 105.46 12797 26.511

Total VOC (C3+) =

VOC emissions from flare, assuming 98 % destruction efficiency*:

= 0.02 447 lb VOC to flare

= 8.94 lb VOC to atmosphere from flare

H2S emissions from flare, assuming 98 % destruction efficiency*:

= 0.02 25 lb H2S to flare

= 0.51 lb H2S to atmosphere from flare
Combustion emissions:

TNRCC Flare Emission Factors* NOx

(lb/MMBtu)

Steam-assisted: High Btu (>1000 Btu/scf) 0.0485

Low Btu (192-1000 Btu/scf) 0.068

Air-assisted: High Btu (>1000 Btu/scf) 0.138

Low Btu (192-1000 Btu/scf) 0.0641

Flare emission factors: NOx = 0.0680 lb/MMBtu

CO = 0.3465 lb/MMBtu

Using emission factors,

Ambient NOx emissions = 13 MMBtu 0.068

= 0.86 lb NOx

CO emissions = 13 MMBtu 0.3465

= 4.36 lb CO

Material Balance for SO2 emissions =

= 278.3 scf H2S lbmol 1

379.5 scf 1

= 46.93 lb SO2

Summary of Flare Emissions

CH4 (Methane): 0.9 lb

CH2 (Ethane): 0.3 lb

C2H4 (Ethylene): 0.2 lb

C3H8 (Propane): 0.6 lb

C3H6 (Propylene): 0.4 lb

I-C4 (iso-Butane): 0.4 lb

nC4 (n-Butane): 1.5 lb

C4=1 (1-Butene): 0.0 lb

IC4= (iso-Butene): 0.1 lb

TC4= (trans-2-Butene): 0.0 lb

CC4= (cis-2-Butene): 0.0 lb

C4== (1,3-Butadiene): - lb

IC5 (iso-Pentane): 4.4 lb

NC5 (n-Pentane): 0.5 lb

C6+ (Hexane plus) 0.8 lb

Benzene: 0.0 lb**

SO2 : 46.9 lb

NOx : 0.9 lb

CO : 4.4 lb

H2S: 0.5 lb
Destruction efficiencies and flare factors are from the "July 1996 TNRCC Technical Guidance Package for Flare Sources"

Assume C6+ compounds are 3.3 % benzene, if no benzene sample data available.
West Plant

Date of Report 7/10/2009 0:00

Report Author S. Peters

Time set up earlier: 0 min

Time interval: 1 min

Time prolong: 0 min

Plant Site: West

Steam / Air: STEAM

Component 

HHV

lb (Btu/SCF) MMBtu

24.57 325 1.50

291.48 0 0.00

0.00 0 0.00

0.00 321 0.00

0.87 0 0.00

25.50 646 0.18

44.53 1012 1.07

10.34 1773 0.25

13.76 1773 0.31

30.59 2524 0.66

19.46 2524 0.44

21.01 3261 0.45

2.89 3261 0.06

1.81 3271 0.04

0.00 3271 0.00

75.90 3271 1.62

2.17 3271 0.05

1.74 3271 0.04

218.35 4011 4.61

23.25 4020 0.49

39.45 4768 0.83

0.00 3752 -

 848 984 13

446.96 lb

Overall HHV: 984.40 Btu/SCF

 VOC to flare

58.33333333

phere from flare

here from flare
CO

(lb/MMBtu)

0.3503

0.3465

0.2755

0.5496

lb

MMBtu

lb

MMBtu

lbmol SO2 64 lb SO2

lbmol H2S lbmol

Reportable Quantity

Green house effect

Green house effect

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 10 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 10 lb per 24 hrs

 500 lb per 24 hrs

 200 lb per 24 hrs(TCEQ) 1000 lb per 24 hrs(TCEQ)

 5,000 lb per 24 hrs

100 lb per 24 hrs
ackage for Flare Sources"
38FCD is the daily sample from FGRU compressor dicharge KO 

43FSF is the special sample from 1st stage flare KO drum.

Please use WinBLSS - Get Stream Data Search function to ch

Lab sampling results

Sampling date:

Sample choice as: 4 701FCD

Worst Case Senerio is used. RESULTS

GRVCSP: Spc Grv Gas Air = 1.0

NBTU: NET BTU REAL GAS @60F

NBTU: NET BTU REAL GAS @60F 624.7 MWCAL: Molecular Weight

#H2:Hydrogen,mol% 38.035 #H2:Hydrogen,mol%

#N2: Nitrogen 32.546 #N2: Nitrogen

#O2: Oxygen 0

#CO: Carbon Monoxide 0 #CO: Carbon Monoxide

#CO2: Carbon diOxide 0.062 #CO2: Carbon diOxide

#H2S: Hydrogen Sulfi 2.34 #H2S: Hydrogen Sulfide

#C1: Methane 8.683 #C1: Methane

#C2L:Ethane and Ligh 11.266 #C2L:Ethane and Lighter,mol%

#C2=: Ethylene 1.152 #C2=: Ethylene

#C2: Ethane 1.431 #C2: Ethane

#C3: Propane 2.169 #C3: Propane

#C3=: Propylene 1.446 #C3=: Propylene

#IC4: iso-Butane 1.13 #IC4: iso-Butane

#IC4=: iso-Butene 0.161 #IC4=: iso-Butene

#C4=1: 1-Butene 0.101 #C4=1: 1-Butene

#C4==: 1,3-Butadiene 0 #C4==: 1,3-Butadiene

#NC4: n-Butane 4.083 #NC4: n-Butane

#TC4=: trans-2-Buten 0.121 #TC4=: trans-2-Butene

Worst Case

#CC4=: cis-2-Butene 0.097 #CC4=: cis-2-Butene

#C4+: Butane Plus 0.48 #C4+: Butane Plus

#IC5: iso-Pentane 9.465 #IC5: iso-Pentane

#NC5: n-Pentane 1.008 #NC5: n-Pentane

#C5+: Pentane plus 0.655 #C5+: Pentane plus

#C6+: Hexane plus 1.432 #C6+: Hexane plus

#C4=: Butenes 0 #C4=: Butenes

Benzene 0 @BZ:Benzene,ppm

105.462

Worst Case


ple from FGRU compressor dicharge KO drum. Sample search back to 6/26/2009 6:15

ample from 1st stage flare KO drum.

- Get Stream Data Search function to check up the proper "Sample Date" to be used. 

0 Default

6/29/2009 5:00:00 AM Sampling date: 7/4/2009 5:00:00 AM 701FCD

710FCD 710FCD

VALUE UOM RESULTS VALUE Worst Case

0.4962 GRVCSP: Spc Grv Gas Air = 1.0 0.5163

783 NBTU: NET BTU REAL GAS @60F 604

14.2 MWCAL: Molecular Weight 14.9

69.14 mol% #H2:Hydrogen,mol% 52.88

5.31 mol% #N2: Nitrogen 18.61

783 2.2

0 mol% #CO: Carbon Monoxide 0.11

0.06 mol% #CO2: Carbon diOxide 0.2

0.04 mol% #H2S: Hydrogen Sulfide 0

7.58 mol% #C1: Methane 16.29

9.87 mol% #C2L:Ethane and Lighter,mol% 21.15

0.36 mol% #C2=: Ethylene 2.07

1.93 mol% #C2: Ethane 2.79

3.16 mol% #C3: Propane 0.9

0.77 mol% #C3=: Propylene 1.69

4.1 mol% #IC4: iso-Butane 0.31

0.14 mol% #IC4=: iso-Butene 0.14

0.1 mol% #C4=1: 1-Butene 0.1

0 mol% #C4==: 1,3-Butadiene 0

3.4 mol% #NC4: n-Butane 0.33

0.11 mol% #TC4=: trans-2-Butene 0.12

0.09 mol% #CC4=: cis-2-Butene 0.11

11.58 mol% #C4+: Butane Plus 4.44

0.57 mol% #IC5: iso-Pentane 0.52

0.6 mol% #NC5: n-Pentane 0.61

NR mol% #NC5: n-Pentane NR

2.47 mol% #C6+: Hexane plus 2.2

0.44 mol% #C4=: Butenes 0.47

NR ppmv @BZ:Benzene,ppm NR ppmv


710FCD:Flare Gas

701FCD:E. plant Flar

Worst Case Senerio VALUE

GRVCSP: Spc Grv Gas Air = 1.00.74022

NBTU: NET BTU REAL GAS @60F624.7

MWCAL: Molecular Weight 21.26

#H2:Hydrogen,mol% 38.035

#N2: Nitrogen 32.546

#CO: Carbon Monoxide 0

#CO2: Carbon diOxide 0.062

#H2S: Hydrogen Sulfide 2.34 12/14/07 through 12/26/07/2003 11:58:00 PM 701FCD:E. plant Flar

#C1: Methane 8.683

#C2L:Ethane and Lighter,mol% 11.266

#C2=: Ethylene 1.152

#C2: Ethane 1.431

#C3: Propane 2.169

#C3=: Propylene 1.446

#IC4: iso-Butane 1.13

#IC4=: iso-Butene 0.161

#C4=1: 1-Butene 0.101

#C4==: 1,3-Butadiene 0

#NC4: n-Butane 4.083

#TC4=: trans-2-Butene 0.121

#CC4=: cis-2-Butene 0.097

#C4=: Butenes 0.48

#C4+: Butane Plus 9.465

#IC5: iso-Pentane 1.008

#NC5: n-Pentane 0.655

#C6+: Hexane plus 1.432
Calculation of Flare Emissions: West Plant

Date and time when flaring began:

Date and time when flaring ended:

Incident: 0 Time set up earlier:

Time interval:

Time prolong:

Volume of Flare Piping and Equipment=

Total Release to Flare = - SCF

MW

Component vol % SCF lb-mol (lb/lb-mol)

#H2:Hydrogen,mol% 52.88 - 0.00 2.02

#N2: Nitrogen 18.61 - 0.00 28.01

#O2: Oxygen 2.20 - 0.00 32

#CO: Carbon Monoxide 0.11 - 0.00 28.01

#CO2: Carbon diOxide 0.20 - 0.00 44.01

#H2S: Hydrogen Sulfi 0.00 - 0.00 34.08

#C1: Methane 16.29 - 0.00 16.04

#C2=: Ethylene 2.07 - 0.00 28.06

#C2: Ethane 2.79 - 0.00 30.08

#C3: Propane 0.90 - 0.00 44.11

#C3=: Propylene 1.69 - 0.00 42.09

#IC4: iso-Butane 0.31 - 0.00 58.14

#IC4=: iso-Butene 0.14 - 0.00 56.12

#C4=1: 1-Butene 0.10 - 0.00 56.12

#C4==: 1,3-Butadiene 0.00 - 0.00 54.09

#NC4: n-Butane 0.33 - 0.00 58.14

#TC4=: trans-2-Buten 0.12 - 0.00 56.1

7/3/2009 0:00

7/3/2009 6:15

#TC4=: trans-2-Buten 0.12 - 0.00 56.1

#CC4=: cis-2-Butene 0.11 - 0.00 56.1

#IC5: iso-Pentane 0.52 - 0.00 72.15

#NC5: n-Pentane 0.61 - 0.00 72.15

#C6+: Hexane plus 2.20 - 0.00 86.17

Benzene 0.00 - - 78.11

Total 102.18 0 15.592

Total VOC (C3+) =

VOC emissions from flare, assuming 98 % destruction efficiency*:

= 0.02 0 lb VOC to flare

= 0.00 lb VOC to atmosphere from flare

H2S emissions from flare, assuming 98 % destruction efficiency*:

= 0.02 0 lb H2S to flare

= 0.00 lb H2S to atmosphere from flare
Combustion emissions:

TNRCC Flare Emission Factors* NOx

(lb/MMBtu)

Steam-assisted: High Btu (>1000 Btu/scf) 0.0485

Low Btu (192-1000 Btu/scf) 0.068

Air-assisted: High Btu (>1000 Btu/scf) 0.138

Low Btu (192-1000 Btu/scf) 0.0641

Flare emission factors: NOx = 0.0680 lb/MMBtu

CO = 0.3465 lb/MMBtu

Using emission factors,

Ambient NOx emissions = 0 MMBtu 0.068

= 0.00 lb NOx

CO emissions = 0 MMBtu 0.3465

= 0.00 lb CO

Material Balance for SO2 emissions =

= 0.0 scf H2S lbmol 1

379.5 scf 1

= 0.00 lb SO2

Summary of Flare Emissions

CH4 (Methane): - lb

CH2 (Ethane): - lb

C2H4 (Ethylene): - lb

C3H8 (Propane): - lb

C3H6 (Propylene): - lb

I-C4 (iso-Butane): - lb

nC4 (n-Butane): - lb

C4=1 (1-Butene): - lb

IC4= (iso-Butene): - lb

TC4= (trans-2-Butene): - lb

CC4= (cis-2-Butene): - lb

C4== (1,3-Butadiene): - lb

IC5 (iso-Pentane): - lb

NC5 (n-Pentane): - lb

C6+ (Hexane plus) - lb

Benzene: - lb**

SO2 : - lb

NOx : - lb

CO : - lb

H2S: - lb
Destruction efficiencies and flare factors are from the "July 1996 TNRCC Technical Guidance Package for Flare Sources"

Assume C6+ compounds are 3.3 % benzene, if no benzene sample data available.
West Plant

Date of Report 7/10/2009 0:00

Report Author S. Peters

Time set up earlier: 0 min

Time interval: 1 min

Time prolong: 0 min

Plant Site: West

Steam / Air: STEAM

Component 

HHV

lb (Btu/SCF) MMBtu

0.00 325 0.00

0.00 0 0.00

0.00 0 0.00

0.00 321 0.00

0.00 0 0.00

0.00 646 0.00

0.00 1012 0.00

0.00 1773 0.00

0.00 1773 0.00

0.00 2524 0.00

0.00 2524 0.00

0.00 3261 0.00

0.00 3261 0.00

0.00 3271 0.00

0.00 3271 0.00

0.00 3271 0.00

0.00 3271 0.00

0.00 3271 0.00

0.00 4011 0.00

0.00 4020 0.00

0.00 4768 0.00

0.00 3752 -

 - #DIV/0! 0

0.00 lb

Overall HHV: #DIV/0! Btu/SCF

 VOC to flare

58.33333333

phere from flare

here from flare
CO

(lb/MMBtu)

0.3503

0.3465

0.2755

0.5496

lb

MMBtu

lb

MMBtu

lbmol SO2 64 lb SO2

lbmol H2S lbmol

Reportable Quantity

Green house effect

Green house effect

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 10 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 5,000 lb per 24 hrs

 10 lb per 24 hrs

 500 lb per 24 hrs

 200 lb per 24 hrs(TCEQ) 1000 lb per 24 hrs(TCEQ)

 5,000 lb per 24 hrs

100 lb per 24 hrs
ackage for Flare Sources"
38FCD is the daily sample from FGRU compressor dicharge KO 

43FSF is the special sample from 1st stage flare KO drum.

Please use WinBLSS - Get Stream Data Search function to ch

Lab sampling results

Sampling date:

Sample choice as: 3 710FSF

710FCD is used. RESULTS

GRVCSP: Spc Grv Gas Air = 1.0

NBTU: NET BTU REAL GAS @60F

NBTU: NET BTU REAL GAS @60F 604 MWCAL: Molecular Weight

#H2:Hydrogen,mol% 52.88 #H2:Hydrogen,mol%

#N2: Nitrogen 18.61 #N2: Nitrogen

#O2: Oxygen 2.2

#CO: Carbon Monoxide 0.11 #CO: Carbon Monoxide

#CO2: Carbon diOxide 0.2 #CO2: Carbon diOxide

#H2S: Hydrogen Sulfi 0 #H2S: Hydrogen Sulfide

#C1: Methane 16.29 #C1: Methane

#C2L:Ethane and Ligh 21.15 #C2L:Ethane and Lighter,mol%

#C2=: Ethylene 2.07 #C2=: Ethylene

#C2: Ethane 2.79 #C2: Ethane

#C3: Propane 0.9 #C3: Propane

#C3=: Propylene 1.69 #C3=: Propylene

#IC4: iso-Butane 0.31 #IC4: iso-Butane

#IC4=: iso-Butene 0.14 #IC4=: iso-Butene

#C4=1: 1-Butene 0.1 #C4=1: 1-Butene

#C4==: 1,3-Butadiene 0 #C4==: 1,3-Butadiene

#NC4: n-Butane 0.33 #NC4: n-Butane

#TC4=: trans-2-Buten 0.12 #TC4=: trans-2-Butene

Warning! H2S Concentration shown as 0. Check 

sample data!

Warning! 710FCD H2S Concentration maybe not 

normal. Check sample data!

701FCD10

#TC4=: trans-2-Buten 0.12 #TC4=: trans-2-Butene

#CC4=: cis-2-Butene 0.11 #CC4=: cis-2-Butene

#C4+: Butane Plus 4.44 #C4+: Butane Plus

#IC5: iso-Pentane 0.52 #IC5: iso-Pentane

#NC5: n-Pentane 0.61 #NC5: n-Pentane

#C5+: Pentane plus 0 #C5+: Pentane plus

#C6+: Hexane plus 2.2 #C6+: Hexane plus

#C4=: Butenes 0.47 #C4=: Butenes

Benzene 0 @BZ:Benzene,ppm

102.65

701FCD10


ple from FGRU compressor dicharge KO drum. Sample search back to 6/26/2009 6:15

ample from 1st stage flare KO drum.

- Get Stream Data Search function to check up the proper "Sample Date" to be used. 

0 Default

NR Sampling date: 7/4/2009 5:00:00 AM 701FCD

710FCD 710FCD

VALUE UOM RESULTS VALUE Worst Case

NR GRVCSP: Spc Grv Gas Air = 1.0 0.5163

NR NBTU: NET BTU REAL GAS @60F 604

NR MWCAL: Molecular Weight 14.9

NR mol% #H2:Hydrogen,mol% 52.88

NR mol% #N2: Nitrogen 18.61

NR 2.2

NR mol% #CO: Carbon Monoxide 0.11

NR mol% #CO2: Carbon diOxide 0.2

NR mol% #H2S: Hydrogen Sulfide 0

NR mol% #C1: Methane 16.29

NR mol% #C2L:Ethane and Lighter,mol% 21.15

NR mol% #C2=: Ethylene 2.07

NR mol% #C2: Ethane 2.79

NR mol% #C3: Propane 0.9

NR mol% #C3=: Propylene 1.69

NR mol% #IC4: iso-Butane 0.31

NR mol% #IC4=: iso-Butene 0.14

NR mol% #C4=1: 1-Butene 0.1

NR mol% #C4==: 1,3-Butadiene 0

NR mol% #NC4: n-Butane 0.33

NR mol% #TC4=: trans-2-Butene 0.12

NR mol% #CC4=: cis-2-Butene 0.11

NR mol% #C4+: Butane Plus 4.44

NR mol% #IC5: iso-Pentane 0.52

NR mol% #NC5: n-Pentane 0.61

NR mol% #NC5: n-Pentane NR

NR mol% #C6+: Hexane plus 2.2

NR mol% #C4=: Butenes 0.47

NR ppmv @BZ:Benzene,ppm NR ppmv


710FCD:Flare Gas

710FSF:Flare Gas

Worst Case Senerio VALUE

GRVCSP: Spc Grv Gas Air = 1.00.74022

NBTU: NET BTU REAL GAS @60F624.7

MWCAL: Molecular Weight 21.26

#H2:Hydrogen,mol% 38.035

#N2: Nitrogen 32.546

#CO: Carbon Monoxide 0

#CO2: Carbon diOxide 0.062

#H2S: Hydrogen Sulfide 12/14/07 through 12/26/07/2003 11:58:00 PM 2.34 701FCD:E. plant Flar

#C1: Methane 8.683

#C2L:Ethane and Lighter,mol% 11.266

#C2=: Ethylene 1.152

#C2: Ethane 1.431

#C3: Propane 2.169

#C3=: Propylene 1.446

#IC4: iso-Butane 1.13

#IC4=: iso-Butene 0.161

#C4=1: 1-Butene 0.101

#C4==: 1,3-Butadiene 0

#NC4: n-Butane 4.083

#TC4=: trans-2-Butene 0.121

#CC4=: cis-2-Butene 0.097

#C4=: Butenes 0.48

#C4+: Butane Plus 9.465

#IC5: iso-Pentane 1.008

#NC5: n-Pentane 0.655

#C6+: Hexane plus 1.432
Sample ID 1700893 1700444 1699258 1698394

Sample Date 12/26/2007 5:00 12/25/2007 5:00 12/22/2007 5:00 12/20/2007 5:00

Code 701FCD:E. plant Flar 701FCD:E. plant Flar 701FCD:E. plant Flar 701FCD:E. plant Flar

Comment

NBTU: NET BTU REAL GAS @60F 1496 1399 115 588

GRVCSP: Spc Grv Gas Air = 1.0 1.1028 1.0449 0.985 0.6229

MWCAL: Molecular Weight 31.3 29.7 28.6 17.9

#H2:Hydrogen,mol% 32.08 32.43 2 36.09

#N2: Nitrogen 14.19 15.06 73.62 26.7

#O2: Oxygen 0 0 18.03 1.97

#CO: Carbon Monoxide 0 0 0 0

#CO2: Carbon diOxide 0.11 0.11 0.05 0.14

#H2S: Hydrogen Sulfide 0.27 0.29 0 0.41

#C1: Methane 11.12 11.78 3.48 24.06

#C2L:Ethane and Lighter,mol%13.46 14.19 3.82 28.09

#C2=: Ethylene 0.95 1 0.14 1.71

#C2: Ethane 1.39 1.41 0.2 2.32

#C3: Propane 7.58 7.51 0.78 1.14

#C3=: Propylene 1.91 1.86 0.13 1.3

#IC4: iso-Butane 3.43 3.37 0.23 0.75

#IC4=: iso-Butene 0.23 0.24 0 0.11

#C4=1: 1-Butene 0.13 0.13 0 0.08

#C4==: 1,3-Butadiene 0 0 0 0

#NC4: n-Butane 16.18 18.36 0.99 0.97

#TC4=: trans-2-Butene 0.16 0.16 0 0.09

#CC4=: cis-2-Butene 0.13 0.12 0 0.08

#C4=: Butenes 0.65 0.65 0 0.36

#C4+: Butane Plus 26.52 26.05 1.42 3.05

#IC5: iso-Pentane 1.98 1.7 0.15 0.94

#NC5: n-Pentane 2.17 1.09 0 0.59

#C6+: Hexane plus 5.99 3.38 0.2 0.56
1697835 1697358 1696864 1696530

12/19/2007 5:00 12/18/2007 5:00 12/17/2007 5:00 12/16/2007 5:00

701FCD:E. plant Flar 701FCD:E. plant Flar 701FCD:E. plant Flar 701FCD:E. plant Flar

804 542 363 380

0.5697 0.621 0.6693 0.6471

16.2 17.8 19.4 18.7

57.5 47.76 38.66 41.13

10.43 29.1 41.07 37.62

0 2.75 0.74 0.01

0 0 0 0

0.07 0.11 0.01 0

0.66 0.6 8.8 10.26

12.83 7.68 4.27 4.45

17.06 10.4 6.81 7.08

2.37 1.46 0.66 0.69

1.86 1.26 1.88 1.94

1.1 1.13 0.76 0.76

3.33 1.66 0.71 0.74

1.19 1.01 0.46 0.47

0.47 0.16 0.07 0.07

0.32 0.1 0.04 0.04

0 0 0 0

1.48 1.71 0.45 0.47

0.39 0.12 0.04 0.04

0.3 0.1 0.04 0.04

1.48 0.48 0.19 0.19

6.38 4.61 10.67 12.04

2.73 1.6 0.36 0.37

1.39 0.87 0.21 0.23

1.57 0.81 0.77 0.65
1696190 1695775

12/15/2007 5:00 12/14/2007 5:00

701FCD:E. plant Flar 701FCD:E. plant Flar

149 411 624.7

0.6999 0.4396 0.74022

20.3 12.7 21.26

31.42 61.28 38.035

54.16 23.51 32.546

9.95 0 3.345

0 0 0

0.01 0.01 0.062

0.53 1.58 2.34

1.69 5.47 8.683

2.93 8.82 11.266

0.69 1.85 1.152

0.55 1.5 1.431

0.18 0.75 2.169

0.62 2.2 1.446

0.06 0.33 1.13

0.03 0.23 0.161

0.01 0.16 0.101

0 0 0

0.04 0.18 4.083

0.02 0.19 0.121

0.01 0.15 0.097

0.07 0.73 0.48

0.72 3.19 9.465

0 0.25 1.008

0 0 0.655

0.02 0.37 1.432
E10FI9239.PV

MMSCFD

300.7861

349.6042

354.8277

280.9392

293.6151

284.4338

287.0501

196.0526

0.42938 298.1807 429380.2

0.43825 304.3405 438250.3

0.438279 304.3602 438278.7

0.436191 302.9102 436190.6

0.430735 299.1214 430734.8

0.428181 297.3481 428181.2

0.420781 292.2088 420780.7

0.433015 300.7048 433015

0.437055 303.5102 437054.7

0.432195 300.1357 432195.4

0.451331 313.424 451330.6

434126.6
Sample ID 1711917 1711566 1711240 1710807

Sample Date 1/21/2008 5:00 1/20/2008 5:00 1/19/2008 5:00 1/18/2008 5:00

Code 710FCD:Flare Gas 710FCD:Flare Gas 710FCD:Flare Gas 710FCD:Flare Gas

Comment

NBTU: NET BTU REAL GAS @60F 734 856 620 652

GRVCSP: Spc Grv Gas Air = 1.0 0.518 0.5988 0.4462 0.4717

MWCAL: Molecular Weight14.8 17.1 12.9 13.5

#H2:Hydrogen,mol% 59.55 54.97 61.09 60.13

#N2: Nitrogen 10.48 9.47 11.33 11.69

#O2: Oxygen 0 0.02 0.03 0.02

#CO: Carbon Monoxide 0.12 0.13 0.18 0.13

#CO2: Carbon diOxide 0.05 0.16 0.08 0.05

#H2S: Hydrogen Sulfide 0.23 0.23 0.02 0

#C1: Methane 14.59 14.7 17.39 15.75

#C2L:Ethane and Lighter,mol% 17.45 17.91 20.06 18.99

#C2=: Ethylene 1.02 1.02 1.12 1.25

#C2: Ethane 1.84 2.19 1.55 1.99

#C3: Propane 1.65 4.5 0.71 0.94

#C3=: Propylene 1.93 1.83 1.44 2.13

#IC4: iso-Butane 1.11 2.26 0.23 0

#IC4=: iso-Butene 0.17 0.18 0.11 0.19

#C4=1: 1-Butene 0.1 0.1 0.07 0.11

#C4==: 1,3-Butadiene 0 0 0 0

#NC4: n-Butane 2.34 3.71 0.25 0.39

#TC4=: trans-2-Butene 0.11 0.12 0.05 0.11

#CC4=: cis-2-Butene 0.09 0.09 0.04 0.09

#C4=: Butenes 0.47 0.49 0.27 0.5

#C4+: Butane Plus 5.6 8.13 2.91 3.04

#IC5: iso-Pentane 1.73 1.54 1 1.42

#NC5: n-Pentane 1.44 1.34 1.19 1.45

#C6+: Hexane plus 1.45 1.44 2.14 1.62

Sample ID 1708364 1704508 1704117 1703593

Sample Date 1/12/2008 18:00 1/3/2008 12:00 1/2/2008 12:00 1/1/2008 12:00

Code 710FSF:Flare Gas 710FSF:Flare Gas 710FSF:Flare Gas 710FSF:Flare Gas

Comment

NBTU: NET BTU REAL GAS @60F 803

GRVCSP: Spc Grv Gas Air = 1.0 0.5952 NoSmple No Smple No Smple

MWCAL: Molecular Weight 17 Pending

H2SDRE:H2SPPM < 1

#H2:Hydrogen,mol% 53.31 Pending

#N2: Nitrogen 12.89 Pending

#O2: Oxygen 0.03 Pending

#CO: Carbon Monoxide 0.13 Pending

#CO2: Carbon diOxide 0.11 Pending

#H2S: Hydrogen Sulfide 0 Pending

#C1: Methane 16.19 Pending

#C2L:Ethane and Lighter,mol% 18.94 Pending

#C2=: Ethylene 1.15 Pending

#C2: Ethane 1.6 Pending
#C3: Propane 3.8 Pending

#C3=: Propylene 1.9 Pending

#IC4: iso-Butane 0.62 Pending

#IC4=: iso-Butene 0.17 Pending

#C4=1: 1-Butene 0.1 Pending

#C4==: 1,3-Butadiene0 Pending

#NC4: n-Butane 1.75 Pending

#TC4=: trans-2-Butene 0.1 Pending

#CC4=: cis-2-Butene 0.09 Pending

#C4=: Butenes 0.46 Pending

#C4+: Butane Plus 5.47 Pending

#IC5: iso-Pentane 1.57 Pending

#NC5: n-Pentane 1.83 Pending

#C6+: Hexane plus 2.64 Pending
1710357 Sample ID 1712800

1/17/2008 5:00 Sample Date 1/22/2008

710FCD:Flare Gas Code 701FCD:E. plant Flar

Comment SPECIAL

Pending NBTU: NET BTU REAL GAS @60F 115

Pending GRVCSP: Spc Grv Gas Air = 1.0 0.904

Pending MWCAL: Molecular Weight 26.2

43.66 #H2:Hydrogen,mol% 11.38

10.79 #N2: Nitrogen 68.31

0.03 #O2: Oxygen 16.29

0.15 #CO: Carbon Monoxide 0

0 #CO2: Carbon diOxide 0.03

0.11 #H2S: Hydrogen Sulfide 0

17.69 #C1: Methane 1.64

21.97 #C2L:Ethane and Lighter,mol% 2.23

1.56 #C2=: Ethylene 0.16

2.72 #C2: Ethane 0.43

1.59 #C3: Propane 0.47

3.14 #C3=: Propylene 0.19

0 #IC4: iso-Butane 0.09

0.3 #IC4=: iso-Butene 0.01

0.19 #C4=1: 1-Butene 0

0 #C4==: 1,3-Butadiene 0

0.78 #NC4: n-Butane 0.13

0.21 #TC4=: trans-2-Butene 0

0.16 #CC4=: cis-2-Butene 0

0.86 #C4=: Butenes 0.01

11.51 #C4+: Butane Plus 0.85

3.27 #IC5: iso-Pentane 0.13

3.89 #NC5: n-Pentane 0.13

9.08 #C6+: Hexane plus 0.62

1703149

12/31/2007 12:00

710FSF:Flare Gas

No Smple