p. 1 

# OAR Box 1168 Prepped byOllie Stewart



# Document

Number: 

# 90 ) ll-C-1 9 Docket Number: 

# A-89-1 0

Printed 4/29/200811:23:19 AM Sheet 90of 131JsW Sr « v orr

t 

# Km. 

# A-89-1 0 P. 2 

## II-C-1 9 UNITE D STATE S ENVIRONMENTA LPROTEC 1 Offic e o fAi rQualit yPlannin g an d Sta i Researc h Triangl e Park , Nort h Carolin a 2771 1



## MA RI6I99 0 

# ; : 

# .j j FE B l»»99 lSL:) ; EPAAIRDOCKET ^ Dea r Re gNe gCommitte e Member : Pleas e findenclose d2 items : estimate demissio nfactor s an destimate d mode l plant emission s fo r eac hcomponen t a t differen t lea kdefinition s an d percen t leakers , an

dmode l plan t emission s fo r al l component s tha t show th e impac t o f variou s mixe s o f percen t leaker s andlea kdefinition s fo r th e entir e plant . We hav e selecte da wid e rang e o f possibl e lea kdefinition s an dpercen t leakers . Thi s table , whic hLe s Montgomer y suggested , shoul db e helpfu l i n comparin gth e significanc e o f emissio ndifference s betwee nvariou s definition s andshoul dals ohel pidentif y wher e w e ca nachiev e th e maximum emissio n reductions . Th e emissio nfactor s i nthes e table s wer e generate dfrom th e ethylen e oxid e an

dbutadien e database s tha t w e hav e bee nusin gan dhav e distributed . Thes e factor s wer e calculate dusin gth e percen t leaker/emissio nrat e correlatio napproac htha t Rober t Pahel-Shor t presente dfo r valve s a t th e las t meeting . Th e correlation s fo r th e th e flang e dat a whic hRober t prepare d followin gth e las t meetin gwer e good--simila r t o th e valv e correlations . Th e pum pcorrelation s wer e poorer , bu t appea r adquat e fo r compariso npurposes . Indevelopin gthes e emissio nfactors , w e assume dtha t th e nomina l performanc e o f a facility , whic hmeet s a specifie dpercen t lea ktarget , woul d averag e 2 5 percen t lowe r tha nth e not-to-b e exceede dtarget ; e.g. , th e emissio nfacto r fo r a 1-percen t lea klimi t wa s calculate da s 7 5 percen t o f th e rat e tha t woul doccu r i f th e 1-percen t limit wer e exactl y achieved .

Rober t L . Aja x Chie f Standard s Developmen t Branc h 2 Enclosure s cc : Intereste dpartie sP. 3

1 _w-~ ~

=============== =

Nur r Equipmen t ( Componen t P l Ga s Valve s Ligh t Liqui d Valve s Pump s Flange s Compressor s Open-ende d1 i Pressure-rel i device s Samplin g connectio nsy s Tota l

Equipmen t Componen t

Ga s Valve s Ligh t Liqui d Valve s Pump s flange s Compressor s Open-ende d1ine s Pressure-relie f device s (gas ) Samplin g connectio nsy s
1 pumps : ga s va l 1iqui d flange s 2 pumps : ga s va l 1iqui d flange s 3 pumps : ga s va l 1iqui d flange s ======= = be r o f ponent s SOCM I Mode l an t 8 ) 40 2 52 4 2 9 240 0 2 22 6 4 2 10 4 ======== = Av g Uncon t SOCM I 2.25 1 3.72 0 1.43 3 1.99 2 0.45 6 0.38 4 4.36 8 1.56 0 16.16 4

Av g Uncon t SOCM I 0.0056 0 0.0071 0 0.0494 0 0.0008 3 0.22 8 0.001 7 0.10 4 0.01 5 == = ====== = Av g SOCM I (Monthl y LDAR ) 0.60 8 1.52 5 0.56 2 1.99 2 0 0 0 0 4.68 7

W g SOCM I (Monthl y LDAR ) 0 0 0 0 0015 1 0029 1 0193 6 0008 3 0 0 0 0

50 0 ppm . 10 % ves : 100 0 ppm , 2 % valves : 100 0 ppm , 2 % : 50 0 ppm . 2 % 500 0 ppm , 5 % ves : 50 0 ppm , 2 % valves : 50 0 ppm , : 250 , 2 % 100 0 ppm , 5 % ves : 50 0 ppm , 2 % valves : 50 0 ppm , 100 0 ppm , 1 % 2 %

2 % ======== =

Ster l ing Benzen e Dat a 0.12 3

. 0.16 0 0.02 5 0.04 8 0 0 0 0 0.35 6 EMISSION S FO REXAMPL E ALTERNATIVE S COMPARISO NO F EMISSION S ==================== = Emission s (kg/hr ) 1 2
0.14 2 0.11 4 0.51 9 0.44 8 0.47 9 0.40 5 0.91 7 0.77 3 0 0 0 0 0 0 0 0 2.05 6 1.74 0 COMPARISO NO F EMISSIO NFACTOR S Emissio n Sterlin g Benzen e Dat a 0.0003 1 0.0003 1 0.0008 6 0.0000 2 0 0 0 0

4

5

6 'actor (kg/hr/source )

1 2
0.00035 4 0.00028 4 0 . 0.00099 0 0.00085 5 0 . 0.01650 0 0.01395 0 0 . 0.00038 2 0.00032 2 0 . 0 0 0 0 0 0 0 0

pumps : 50 0 ppm , 5 % ga s valves : 25 0 pp m liqui d valves : 25 0 flanges : 50 0 pp

m1 % ======= = 3
0.11 4 0.44 8 0.29 1 0.62 9 0 0 0 0 1.48 2

* 3
00028 4 0 00085 5 0 01005 0 0 00026 2 0 0 0 0 0

2 % ppm , 2% pumps : 50 0 ppm , 5 % ga s valves : 100 0 ppm , 1 % liqui d valves : 100 0 ppm , 1% flanges : 25 0 ppm , 1 % pumps* . 500 0 ppm , 1 % ga s valves : 50 0 pp m 1iqui d valves : 50 0 flanges : 100 0 ppm , . 1 % ppm , 1 % . 5 % ======== =

4
0.10 1 0.39 7 0.23 9 0.55 2 0 0 0 0 1.28 9

4
00025 0 0 00075 8 0 00825 0 0 00023 0 0 0 0 0 0 ====== = 5
0.08 2 0.34 1 0.23 9 0.47 8 0 0 0 0 1.14 0

5
00020 5 00065 0 00825 0 00019 9 0 0 0 0

7

8 ========= =

6
0.05 8 0.31 3 0.08 1 0.42 5 0 0 0 0 0.87 6

6
0.00014 4 0.00059 7 0.00279 0 0.00017 7 0 0 0 0 • y- .

03/16/9 0

================= =
7 8
0.05 8 0.05 5 0.31 3 0.28 6 0.05 8 0.04 8 0.37 1 0.33 0 0 0 0 0 0 0 0 0 0.80 0 0.71 9

7 8
0.00014 4 0.00013 6 0.00059 7 0.00054 6 0.00201 0 0.00165 0 0.00015 4 0.00013 8 0 0 0 0 0 - 0 0 0

pumps : 100 0 ppm , 1 % ga s valves : 50 0 ppm , it liqui dvalves : 50 0 ppm , 1 % flanges : 500 , .5* % pumps : 50 0 ppm , 1*% ga s valves : 25 0 ppm , 1 % liqui dvalves* . 25 0 ppm , \X flanges : 25 0 ppm , .5% T l

j

,

*



# i

### P. 4

EMISSION FACTORMATRICE S SINGL E MECHANICA L SEAL PUMP S (KG/HR/SOURCE ) 15 % 10 % 5 % 1 % 500 0 ppm 0.0418 5 0.027 9 100 0 ppm0.0301 5 0.020 1 50 0 ppm0.0247 5 0.016 5 0.0139 5 0.0027 9 0.0100 5 0.0020 1 0.0082 5 0.0016 5 PLANT EMISSION S (KG/HR ) 500 0 pp m 100 0 pp m 50 0 pp m 1.2136 5

0.8743 5 0.7177 5 0.809 1

0.582 9 0.478 5 0.4045 5

0.2914 5 0.2392 5 0.0809 1

0.0582 9 0.0478 5 03/16/9 0 DUAL MECHANICAL SEAL PUMP S (KG/HR/SOURCE ) 4 % 3 % 2 % 1 % 50 0 ppm0.012 3 0.00922 5 0.0061 5 0.00307 5 25 0 ppm0.0106 5 0.00802 5 0.00532 5 0.00266 2 10 0 ppm0.0062 1 0.00465 8 0.00310 5 0.00155 2

PLANT EMISSION S (kg/hr ) 50 0 ppm0.356 7 0.26752 5 0.1783 5 0.08917 5 25 0 ppm 0.3088 5 0.23272 5 0.15442 5 0.07721 3 10 0 ppm0.1800 9 0.13506 8 0.09004 5 0.04502 2 Assume s 2 9 pumps/plan t Calculate demission s assum e plant' s emission s ar e 25 % lowe r tha nemission s a t state dpercentag e andlea k definition .

GA S VALVE S (KG/HR/SOURCE ) 

### 4 % 3 % 2 % 1 % 100 0 ppm 50 0 ppm 25 0 ppm

100 0 ppm 50 0 ppm 25 0 ppm 0.00065 2 0.00050 3 0.00035 4 0.00020 5

0.00056 1 0.00042 2 0.00028 4 0.00014 4 0.00047 8 0.00036 4 0.0002 5 0.00013 6 PLANT EMISSION S (KG/HR ) 0.26210 4 0.20220 6 0.14230 8 0.0824 1 0.22552 2 0.16964 4 0.11416 8 0.05788 8 0.19215 6 0.14632 8 0.100 5 0.05467 2 LIQUI D VALVE S (KG/HR/SOURCE ) 4 % 3 % 2 % 1 % 100 0 ppm0.0016 7 0.0013 4 0.0009 9 0.0006 5 50 0 ppm0.0013 8 0.0011 2 0.00085 5 0.00059 7 25 0 ppm 0.0011 7 0.0009 6 0.00075 8 0.00054 6 PLANT EMISSION S (KG/HR ) 100 0 ppm. 0.8750 8 0.7021 6 0.5187 6 0.340 6 50 0 ppm0.7231 2 0.5868 8 0.4480 2 0.31282 8 25 0 ppm0.6130 8 0.5030 4 0.39719 2 0.28610 4 Assume s 40 2 ga s valves/plan t Assume s 52 4 liqui dvalves/plan t Calculate demission s assum e plant' s emission s ar e 25 % lowe r tha nemission s a t state dpercentag e andlea k definition .

FLANGE S (KG/HR/SOURCE ) 4 % 3 % 2 % 

### 1 % 0.5 % 100 0 ppm 50 0 ppm 25 0 ppm 0.00077 2 0.00060 2 0.00043 2 0.00026 2 0.00017 7

0.00068 5 0.00053 3 0.00038 2 0.00023 0 0.00015 4 0.00056 8 0.00044 5 0.00032 2 0.00019 9 0.00013 8 PLANT EMISSION S (KG/HR ) 100 0 pp m 50 0 pp m 25 0 pp m 1.852 8

1.64 4 1.363 2 1.444 8

1.279 2 1.06 8 1.036 8

0.916 8 0.772 8 0.628 8

0.55 2 0.477 6 0.424 8

0.370 8 0.3 3 Assume s 240 0 flanges/plan t Calculate demission s assum e plant' s emission s ar e 25 % lowe r tha nemission s a t state dpercentag e andlea k definition .