# 1 

# Schaffner, Karen S.

From: Herman, Michelle L [Michelle.Herman@chevron.com]

Sent: Tuesday, May 18, 2010 2:22 PM

To: Shedd.Steve@epamail.epa.gov

Cc: Schaffner, Karen S.

Subject: RE: RTR MVL: follow-up question onf TX Unocal MVL t erminal

Attachments: MACT Y 2005 Data.pdf



# Sorry it took so long. Please see attached.

Michelle Herman

Environmental Specialist

Chevron Pipe Line Company

Highway 366, P.O. Box 237

Nederland, TX 77627

Tel 409 724 3321

Mobil 409 651 0708

Fax 409 724 3254

Michelle.Herman@chevron.com

-----Original Message-----

From: Shedd.Steve@epamail.epa.gov [mailto:Shedd.Ste ve@epamail.epa.gov]

Sent: Tuesday, May 18, 2010 8:37 AM

To: Herman, Michelle L

Cc: Schaffner, Karen S.

Subject: RE: RTR MVL: follow-up question onf TX Uno cal MVL terminal

Michelle

Thank you so much for all your help. Can you shar e the 2005

estimates as well? Your current data sheets are ve ry helpful. It will

help us at least report the information in consiste nt years

Stephen Shedd, Coatings and Chemicals Group, (E143- 01) Sector Policies and Programs Division,

Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, Research

Triangle Park, NC 27707

Voice: 919 541-5397 Fax: 919 685-3195

From: "Herman, Michelle L" <Michelle.Herman @chevro n.com>

To: "Schaffner, Karen S." < ksschaffner@rti.org >

Cc: Steve Shedd/RTP/USEPA/US@EPA

Date: 05/17/2010 04:20 PM

Subject: RE: RTR MVL: follow- up question onf TX Unocal MVL terminal

# 2 

# Hi Karen,

I believe I made a clerical error when submitting t he information for tons/yr and it was

uncontrolled which I was thinking you were asking f or. I apologize if this caused you any

inconvenience. I have attached a summary for 2009 that better breaks down the HAP emissions.

I went back and looked at the 2005 data and can’t m atch my data to yours. Can you tell which

reporting year the data is for and if it was just t he MVL?

I hope this attachment helps.

Michelle Herman

Environmental Specialist

Chevron Pipe Line Company

Highway 366, P.O. Box 237

Nederland, TX 77627

Tel 409 724 3321

Mobil 409 651 0708

Fax 409 724 3254

Michelle.Herman@chevron.com

From: Schaffner, Karen S. [mailto:ksschaffner@rti.o rg]

Sent: Monday, May 17, 2010 1:44 PM

To: Herman, Michelle L

Cc: Shedd.Steve@epamail.epa.gov

Subject: RTR MVL: follow-up question onf TX Unocal MVL terminal

Hi Michelle: Thank you for sharing additional info rmation on the MVL operations at the

Unocal Beaumo nt Terminal, Nederland TX facility. We do have an additional question about the

HAPs emitted. You indicated in your notes last wee k that “MVL only” HAP emissions were 108

ton/yr in 2009.

The latest data EPA has is from the 2005 NEI/NATA d atabase with “MVL only” HAP emissions of

36.78 ton, with speciation of:

Ethylbenzene: 0.2

Ethylene glycol: 0.000021504

Hexane: 0.82

MTBE: 24.63

Naphthalene: 7.8

Toluene 0.15

Xylenes: 3.18

Would it be possible to share the HAP speciation fo r the current 108 ton/yr HAP emissions

estimate? We are interested in understanding the H AP compounds emitted, whether the 2005

compounds are still an appropriate mix of HAP emitt ed or whether they have changed over time,

e.g., use of MTBE is declining as other oxygenates are used. Thank you, Karen

Karen Schaffner

Air Quality Engineering Group

RTI International

3040 Cornwallis Rd (800 Park, C311)

# 3 

# Research Triangle Park, NC 27709

phone: (919) 316 3740

fax: (919) 541 7155[attachment

"CY2009_LoadingCalcs_MACT_Y_AnnualReport.pdf" delet ed by Steve Shedd/RTP/USEPA/US]UNION OIL COMPANY OF CALIFORNIABEAUMONT TERMINALMACT Y ANNUAL REPORT - CALENDAR YEAR 2009MARINE VESSEL LOADING EMISSION RATE CALCULATIONSJANUARY 29, 2010EMISSION ESTIMATE FOR MARINE LOADINGEMISSION FACTOR EQUATIONSL = 12.46 S P M(AP-42, Fifth Edition, Equation 5.2-1)where: L = Loading loss (lb/1000 gal liquid loaded)TCL= Loading loss for crude oil (lb/1000 gal liquid loaded)or, for crude oil:M = Vapor molecular weight of liquid loaded (lb/lb-mol)CL= CA+ CG(AP-42, Fifth Edition, Equation 5.2-2)P = True vapor pressure of liquid loaded (psia)CG= 1.84(0.44P - 0.42)1.02M(AP-42, Fifth Edition, Equation 5.2-3)T = Temperature of bulk liquid loaded (°R)TS = Saturation factor (0.5 for submerged barge loading, from Table 5.2-1)L = 3.9 for gasoline loading into uncleaned barges, (Table 5.2-2)CA= Arrival emission factor (0.86 for crude oil loading into uncleaned ships/ocean barges, from Table 5.2-3)EMISSIONS*CG= Loading loss (lb/1000 gal liquid loaded) for crude oilVaporControlControlFugitive VOC Oxidizer VOCSaturation orAverageMol.VaporLoadingCapture DestructionLoadingLoadingLoadingLoadingLiquidType of Arrival FactorTemp.Wt.PressureLossEfficiency(a)Efficiency(b)RateEmissions EmissionsVesselLoadedLoadingS or CA(°F)(°R)(lb/lb-mol)(psia)(lb/1000 gal)(%)(%)(bbl)(tons)(tons)BargeGasoline & Blend Stocksubmerged 0.5 70 530 62.00 6.2 4.52 100.00% 99.91% 143,306 0.00 0.0122ShipGasoline & Blend Stocksubmerged0.26052062.005.21.55100.00%99.91%121,7270.000.0036BargeMTBEsubmerged0.5046088.140.000.00100.00%99.91%00.000.00ShipMTBEsubmerged0.27853888.144.962.02100.00%99.91%3,367,0380.000.129BargePetroleum Naphtha submerged0.57753780.004.314.00100.00%99.91%1,590,6490.000.120ShipPetroleum Naphtha submerged0.28454480.002.921.07100.00%99.91%220,0720.000.004BargeReformatesubmerged0.5046080.000.000.00100.00%99.91%00.000.00ShipReformatesubmerged0.25851880.000.750.29100.00%99.91%43,2520.000.0002BargeCrude Oilsubmerged0.867653650.004.921.17100.00%99.91%5,230,5910.000.116ShipCrude Oilsubmerged0.86046050.0000.77100.00%99.91%00.000.00BargeCyclohexanesubmerged0.55651684.160.000.00100.00%99.91%00.000.00ShipCyclohexanesubmerged0.25651684.160.000.00100.00%99.91%00.000.00BargeAlkylatesubmerged0.5046080.000.000.00100.00%99.91%00.000.00ShipAlkylatesubmerged0.25851880.005.212.01100.00%99.91%24,8980.000.001ShipCumenesubmerged0.25751780.000.2000.08100.00%99.91%50,2460.000.0001BargeCondensatesubmerged0.5046080.0000.00100.00%99.91%00.000.00ShipCondensatesubmerged0.2046080.0000.00100.00%99.91%00.000.00Annual Totals10,791,7790.000.386(a) The capture efficiency is based on the TCEQ'sAir Permit Technical Guidance for Chemical Sources: Loading Operationsdocument (draft dated October 2000).(b) The control destruction efficiency is based on the initial performance test conducted on January 20 and 21, 2000.Sample calculations:MTBELoading loss = 12.46 S P MT= (12.46) (0.50) (0.000 psia) (88.14 lb/lb-mol)= 0.00 lb/1000 gal loaded(460 °R)Annual VCU emissions = (Loading loss emission factor) (Annual loading rate)(Fraction captured)(Fraction not destroyed)= (0.00 lb/1000 gal) (ton/ 2000 lb) (0 bbl/yr) (42 gal/bbl)(1 fraction captured)(0.0009 fraction not destroyed)= 0.00 tons/yrAnnual fugitive emissions = (Loading loss emission factor) (Annual loading rate) (Fraction not captured)= (0.00 lb/1000 gal) (ton/ 2000 lb) (0 bbl/yr) (42 gal/bbl) (0 fraction not captured)= 0.00 tons/yrThe seal appearing on this document was authorized byJoerg Windolph, P.E. 85630 on January 29, 2010. Alterationof a sealed document without proper notification to theresponsible engineer is an offense under the Texas EngineeringPractice Act.UNION OIL COMPANY OF CALIFORNIABEAUMONT TERMINALMACT Y ANNUAL REPORT - CALENDAR YEAR 2009MARINE VAPOR CONTROL SYSTEMHAZARDOUS AIR POLLUTANT EMISSION SUMMARYJANUARY 29, 2010CASGasoline Methanol MTBE Naphtha Reformate Crude Oil Cyclohexane Alkylate Cumene Condensate TotalNo. HAP(ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)71432 Benzene3.23E-04 00 4.30E-03 3.52E-05 4.25E-03 0 1.72E-05 000.00998828 Cumene0.00E+00 00 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 0.000100.0110827 Cyclohexane0.00E+00 00 0.00E+00 0.00E+00 4.45E-03 0 0.00E+00 000.004100414 Ethylbenzene9.60E-05 00 1.35E-03 0.00E+00 3.50E-04 0 0.00E+00 000.002110543 Hexane0.00E+00 00 0.00E+00 0.00E+00 1.35E-02 0 0.00E+00 000.0141634044 MTBE2.59E-03 0 0.129 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 000.13291203 Naphthalene0.00E+00 00 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 000.095636 Pseudocumene0.00E+00 00 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 000.0108883 Toluene3.76E-04 00 5.13E-03 0.00E+00 7.56E-04 0 0.00E+00 000.006540841 2,2,4-Trimethylpentane 0.00E+00 00 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 000.01330207 Xylene2.85E-05 00 1.60E-03 0.00E+00 3.11E-04 0 0.00E+00 000.00275650 Methanol000 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 000.0Other VOC1.26E-02 00 1.12E-01 1.65E-04 9.24E-02 0 9.83E-04 000.218HAP Emission Summary - Thermal OxidizerUNION OIL COMPANY OF CALIFORNIABEAUMONT TERMINALMACT Y ANNUAL REPORT - CALENDAR YEAR 2009MARINE VAPOR CONTROL SYSTEMHAZARDOUS AIR POLLUTANT EMISSION SUMMARYJANUARY 29, 2010SourceControlled HAPEmissions (ton/yr)ControlEfficiency(%)HAP EmissionsBefore Control(ton/yr)Thermal Oxidizer 0.165 99.91% 183.333Loading Fugitives00.00% 0.000Total0.165183.333HAP Control Efficiency: 99.91%HAP Control Efficiency = 1 - (0.165/183.333)Note: Cyclohexane is not a HAP, and is therefore not included in the HAP totals.HAP Control EfficiencyUNOCAL BEAUMONT TERMINAL

MACT Y ANNUAL REPORT - CALENDAR YEAR 2005 MARINE VESSEL LOADING EMISSION RATE CALCULATIONS JANUARY 25, 2006

M:\ENV\THERMAL OX\

MACT Y 2005 Data.xlsx Emissions Page 1 of 1 Printed 5/18/2010 1:12 PM 

## EMISSION ESTIMATE FOR MARINE LOADING

EMISSION FACTOR EQUATIONS

L = 12.46 S P M (AP-42, Fifth Edition, Equation 5.2-1) where: L = Loading loss (lb/1000 gal liquid loaded)

T C L = Loading loss for crude oil (lb/1000 gal liquid loaded)

or, for crude oil: M = Vapor molecular weight of liquid loaded (lb/lb-mol)

C L = C A + C G (AP-42, Fifth Edition, Equation 5.2-2) P = True vapor pressure of liquid loaded (psia)

C G = 1.84(0.44P - 0.42)1.02M (AP-42, Fifth Edition, Equation 5.2-3) T = Temperature of bulk liquid loaded (°R)

T S = Saturation factor (0.5 for submerged barge loading, from Table 5.2-1)

L = 3.9 for gasoline loading into uncleaned barges, (Table 5.2-2)

C A

= Arrival emission factor (0.86 for crude oil loading into uncleaned ships/ocean barges, from Table 5.2-3)

EMISSIONS* C G = Loading loss (lb/1000 gal liquid loaded) for crude oil

Vapor Control Control Fugitive VOC Oxidizer VOC

Saturation or Average Mol. Vapor Loading Capture Destruction Loading Loading Loading

Loading Liquid Type of Arrival Factor Temp. Wt. Pressure Loss Efficiency (a) Efficiency (b) Rate Emissions Emissions

Vessel Loaded Loading S or C A (°F) (°R) (lb/lb-mol) (psia) (lb/1000 gal) (%) (%) (bbl) (tons) (tons)

Barge Gasoline & Blend Stock submerged 0.5 77.25 537.25 62.00 3.35 2.41 100.00% 99.91% 269,109 0.00 0.012

Ship Gasoline & Blend Stock submerged 0.2 83 543 62.00 4.63 1.32 100.00% 99.91% 2,598 0.00 0.0001

Barge Methanol submerged 0.5 63 523 32.04 1.6 0.61 100.00% 99.91% 0 0.00 0.00

Ship Methanol submerged 0.2 63 523 32.04 1.6 0.24 100.00% 99.91% 0 0.00 0.00

Barge MTBE submerged 0.5 79.1 539.1 88.14 5.64 5.74 100.00% 99.91% 4,816,158 0.00 0.523

Ship MTBE submerged 0.2 71.95 531.95 88.14 4.81 1.99 100.00% 99.91% 1,048,817 0.00 0.039

Barge Petroleum Naphtha submerged 0.5 71.9 531.9 80.00 2.56 2.40 100.00% 99.91% 2,570,750 0.00 0.117

Ship Petroleum Naphtha submerged 0.2 63.83 523.83 80.00 1.31 0.50 100.00% 99.91% 525,231 0.00 0.005

Barge Reformate submerged 0.5 73.3 533.3 80.00 1.94 1.81 100.00% 99.91% 324,465 0.00 0.0111

Ship Reformate submerged 0.2 73.5 533.5 80.00 0.62 0.23 100.00% 99.91% 86,556 0.00 0.00

Barge Crude Oil submerged 0.86 74.32 534.32 50.00 5.04 1.18 100.00% 99.91% 4,077,352 0.00 0.091

Ship Crude Oil submerged 0.86 75.08 535.08 50.00 3.44 1.05 100.00% 99.91% 296,285 0.00 0.01

Barge Cyclohexane submerged 0.5 56 516 84.16 1.12 1.13 100.00% 99.91% 0 0.00 0.0000

Ship Cyclohexane submerged 0.2 56 516 84.16 1.12 0.45 100.00% 99.91% 0 0.00 0.00

Barge Alkylate submerged 0.5 72 532 80.00 2.35 2.20 100.00% 99.91% 0 0.00 0.000

Ship Alkylate submerged 0.2 66 526 80.00 3.09 1.17 100.00% 99.91% 77,904 0.00 0.002

Ship Xylene submerged 0.2 65 525.0453927 80.00 0.115 0.04 100.00% 99.91% 0 0.00 0.0000

Barge Condensate submerged 0.5 75.07 535.07 80.00 7.61 7.09 100.00% 99.91% 426,267 0.00 0.06

Ship Condensate submerged 0.2 63 523 80.00 11 4.19 100.00% 99.91% 0 0.00 0.00

**Annual Totals** 14,521,492 0.00 0.863

(a) The capture efficiency is based on the TCEQ's Air Permit Technical Guidance for Chemical Sources: Loading Operations document (draft dated October 2000).

(b) The control destruction efficiency is based on the initial performance test conducted on January 20 and 21, 2000.

Sample calculations:

MTBE

Loading loss = 12.46 S P M

T

= (12.46) (0.50) (5.640 psia) (88.14 lb/lb-mol) = 5.74 lb/1000 gal loaded

(539 °R)

Annual VCU emissions = (Loading loss emission factor) (Annual loading rate)(Fraction captured)(Fraction not destroyed)

= (5.74 lb/1000 gal) (ton/ 2000 lb) (4,816,158 bbl/yr) (42 gal/bbl)(1 fraction captured)(0.0009 fraction not destroyed)

= 0.52 tons/yr

Annual fugitive emissions = (Loading loss emission factor) (Annual loading rate) (Fraction not captured)

= (5.74 lb/1000 gal) (ton/ 2000 lb) (4,816,158 bbl/yr) (42 gal/bbl) (0 fraction not captured)

= 0.00 tons/yr



### The seal appearing on this document was authorized by

Joerg Windolph, P.E. 85630 on January 30, 2006. Alteration

of a sealed document without proper notification to the

responsible engineer is an offense under the Texas Engineering

Practice Act.

### UNOCAL BEAUMONT TERMINAL

MACT Y ANNUAL REPORT - CALENDAR YEAR 2005 MARINE VAPOR CONTROL SYSTEM

HAZARDOUS AIR POLLUTANT EMISSION SUMMARY JANUARY 25, 2006

M:\ENV\THERMAL OX\

MACT Y 2005 Data.xlsx Emission Summary - Ox Page 1 of 1 Printed 5/18/2010 1:12 PM CAS Gasoline Methanol MTBE Naphtha Reformate Crude Oil Cyclohexane Alkylate Xylene Condensate Total

No. HAP (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr)

71432 Benzene 5.41E-04 0 0 6.23E-03 1.14E-03 3.44E-03 0 7.20E-05 0 0 0.011

98828 Cumene 0.00E+00 0 0 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 0 0 0.0

110827 Cyclohexane 0.00E+00 0 0 0.00E+00 0.00E+00 3.61E-03 0 0.00E+00 0 0 0.004

100414 Ethylbenzene 1.69E-04 0 0 1.88E-03 0.00E+00 2.83E-04 0 0.00E+00 0 0 0.002

110543 Hexane 0.00E+00 0 0 0.00E+00 0.00E+00 1.10E-02 0 0.00E+00 0 0 0.011

1634044 MTBE 4.27E-03 0 0.56228699 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 0 0 0.567

91203 Naphthalene 0.00E+00 0 0 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 0 0 0.0

95636 Pseudocumene 0.00E+00 0 0 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 0 0 0.0

108883 Toluene 6.43E-04 0 0 7.31E-03 0.00E+00 6.12E-04 0 0.00E+00 0 0 0.009

540841 2,2,4-Trimethylpentane 0.00E+00 0 0 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 0 0 0.0

1330207 Xylene 4.99E-05 0 0 2.23E-03 0.00E+00 2.51E-04 0 0.00E+00 0 0 0.003

75650 Methanol 0 0 0 0.00E+00 0.00E+00 0.00E+00 0 0.00E+00 0 0 0.0

Other VOC 6.33E-03 0 0 1.04E-01 9.96E-03 8.18E-02 0 1.93E-03 0 0 0.204 

## HAP Emission Summary - Thermal Oxidizer

### UNOCAL BEAUMONT TERMINAL

MACT Y ANNUAL REPORT - CALENDAR YEAR 2005 MARINE VAPOR CONTROL SYSTEM

HAZARDOUS AIR POLLUTANT EMISSION SUMMARY JANUARY 25, 2006

M:\ENV\THERMAL OX\

MACT Y 2005 Data.xlsx HAP Control Efficiency Page 1 of 1 Printed 5/18/2010 1:12 PM 

## Source Controlled HAP

Emissions (ton/yr) Control

Efficiency

(%) HAP Emissions

Before Control

(ton/yr)

Thermal Oxidizer 0.602407889 99.91% 669.342

Loading Fugitives 0 0.00% 0.000

Total 0.602407889 669.3420989

HAP Control Efficiency: 99.91%

HAP Control Efficiency = 1 - (0.60240788905405/669.342098948936)

Note: Cyclohexane is not a HAP, and is therefore not included in the HAP totals. 

## HAP Control Efficiency