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# OAR Box 1252 Prepped byCandice Davis



### Document

Number: 

# 44 ) ll-B-4
Docket Number: 

# A-90-2 2

Printed 5/21/200811:46:01 AM Sheet 44 of 184MEMORANDUM P. 2



### flfl-i-4

DATE : Augus t 21 , 199 1 TO : HONProjec t Fil e 6. 3 FROM : Thoma s R . Olsen , Radia n SUBJECT : Loading Technique s Use d i nth e SOCM I 

## m EjLUJULi?, ,

Th e informatio ngathere d froma Sectio n11 4 surveyo n transfe r operation s i n suppor t o f th e HONwa s use d t o determin e th e distributio no f type s o f loading operation s i nth e industry an d th e exten t t o whic hvapo r collectio nsystem s wer e used
. Th e informatio nwa s evaluate d separatel yfo r facilitie s tha t ha d tank ca r an d tank truc k loading operation s onl yan d fo r facilitie s tha t had tank truck , tank ca r an d marin e vesse l loading operations
. Tabl e 1 present s th e result s o f th e analysis
. Th e collecte d informatio nreveale d tha t ove r 8 7 percen t o f th e vehicle s use d submerge d loading operations
. Furthermore , ove r 5 0 percen t o f al l th e transfe r rack s wer e equippe d wit h vapo r collectio n systems . Base d o nth e data , i t wa s assume d fo r costing purpose s tha t al l vehicle s wer e using submerge d loading techniques
. Therefore , ther e wa s n o nee d t o includ e th e cos t o f retrofitting transpor t vessel s t o submerge d loading
. I n addition , i t wa s assume d tha t a vapo r collectio nsystemwa s i n operatio na t eac hrack
. Therefore , onl yannua l cost s neede d t o b e calculate d fo r vehicl e vapo r tightnes s testing an d vapo r collection
. Th e vapo r collectio nsystemwa s assume d t o includ e a nitroge nblanketing systemoperate d a t eac hrack
. Th e reason s t o includ e a nitroge n blanketing system a s par t o f a vapo r collectio n system

wer e a s follows :

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saaTABL E 1 . LOADIN GTECHNIQUE S

e o Vehicl e Typ e

Tan k ca r

Tan k truc k

Subtota l (T T an d R C only )

Marin e vesse l Loadin g Techniqu e Botto m Splas h Submerge d Miscellaneou s Tota l Botto m Splas h Submerge d Miscellaneou s Tota l Botto m Splas h Submerge d Miscellaneou s Tota l Botto m Splas h Submerge d Miscellaneou s Tota l Numbe r i n Flee t 73 0 47 3 68,53 3 16 4 69,90 0 7,47 1 1,95 1 14,17 0 2 1 23,61 3 8,20 1 2,42 4 82,70 3 18 5 93,51 3 1,46 8
0 58 0 2 2,05 0 Numbe r wit h

Vapo r Collectio n 14 9 5 0 40,22 5 43 40,46 7 15 1 1 2 8,95 9 0 9,12 2 30 0
6 2 49,18 4 4 3 49,58 9 14 5
0 28 6 2 43 3 Distributio n

o f Loadin g Typ e 1.0 4 0.6 8 98.0 4 0.2 3 10 0 31.6 4 8.2 6 60.0 1 0.0 9 10 0 8.7 7
2.5 9 88.4 4 0.2 0 10 0 71.6 1
0.0 0 28.2 9 0.1 0 10 0 Percen t wit h

Vapo r Collectio n

20.4 1 10.5 7 58.6 9 26.2 2 57.8 9 2.0 2 0.6 2 63.23 0.0 0 38.63 3.6 6
2.5 6 59.4 7 23.2 4 53.03 9.8 8
0.0 0 49.3 1 100.0 0 21.1 2TABL E 1 . LOADIN GTECHNIQUE S (CONTINUED )

Vehicl e Tota l Tota l Tota l Tota l Tota l Typ e Loadin g Techniqu e Botto m Splas h Submerge d Miscellaneou s Tota l Numbe r i n Flee t 9,66 9 2,42 4 83,28 3 18 7 95,56 3 Numbe r wit h

Vapo r Collectio n 44 5 6 2 49,47 0 4 5 50,02 2 Distributio n

o f Loadin g Typ e 10.1 2 2.5 4 87.1 5 0.2 0 10 0 Percen t wit h

Vapo r Collectio n

4.6 0 2.5 6 59.4 0 24.0 6 52.3 4

U )

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p .P. 5

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. Nitroge n blanketing ca nb e use d fo r recovering organi c compound vapor s fromth e vapo r spac e o f transpor t vessels
. Nitroge npurge d int o th e vehicle s ensure s 10 0 percen t collectio nefficiency
. Nitroge n blanketing i s use d t o preven t contaminatio no r t o eliminat e moistur e foun d i nambien t air
. Nitroge n blanketing i s use d a s a safet ymeasur e t o avoi d explosiv e mixture s i nth e transpor t vessel
. I f ai r wa s present , explosiv e mixture s coul d presen t a safet yhazard
. Sinc e th e nitroge nblanketing systemwa s assume d t o b e operate d a t eac hrack , onl yannua l cost s fo r operating th e systemneede d t o b e calculate d fo r th e vapo r collectio nsystem . Th e annua l cos t fo r operating a nitroge nblanketing systemi s equa l t o th e annua l cos t o f th e nitrogen
.

cc : Juli e Ann e Probert , Radia n Kri s Scott , Radia n JohnStelling , Radia n Ma e Thomas , Radia n Projec t Fil e 6. 1 (M
. Haley )

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