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Basic Procedure of re-commissioning downstream of LV-7003

1. Basic philosophy

Crack opening LV7003 bypass for injecting LNG towar !" p#$p s#ction heaer by

inching operation. %or first step& cooling own !" p#$p s#ction heaer an filling

LNG. %or secon step& cooling own !" p#$p can an s#bse'#ently cooling own

p#$p ischarge heaer.

(sti$ate ti$e for these cooing own operation is )* hrs incl#ing $argin.

+tep 1, Cooling own !" p#$p s#ction heaer - hrs/

+tep ), Cooling own !" p#$p can -hrs/

+tep 3, Cooling own !" p#$p ischarge heaer - hrs/

Note,

o perfor$ stable cooling own for !" p#$p can& it is reco$$ene to co$plete

cooling own of !" p#$p s#ction heaer first before cooling own !" p#$p can.

f the p#$p can is coole si$#ltaneo#sly with the s#ction heaer& the s#ction

heaer will not be fille with LNG #ntil the p#$p can is fille #p with LNG. t i$plies

that the botto$ of the s#ction heaer is s#bject to contraction #ntil co$pletion of

p#$p can cooling own.

t wo#l be better to concentrate on !" p#$p s#ction heaer first at ay ti$e

-inching operation/& s#bse'#ently contin#o#sly intro#ce LNG to !" p#$p can at

night ti$e by crack opening.

Cooling own of B2G conenser is N2 re'#ire& b#t leel of conenser is kept at a

certain low leel.

B2G generate #ring cooling own is sent to flare thro#gh B2G conenser as

$#ch as possible.

). "reparation

Check if all inlet ale of !" p#$ps are f#lly close

Check if !" p#$p ent line to B2G conenser is isolate

e$porary fle4ible cryogenic hose is proie fro$ a rain no55le at !" p#$p

botto$ to the lowest point of !" p#$p ischarge heaer. -special tool was #se

when initial co$$issioning for connecting two flanges which has ifferent rating/

!" p#$p can "+V is bypasse by a fle4ible hose to re$oe B2G to +V heaer

6e$oe "+V of apori5er ischarge line te$porarily -if chilling water syste$ is

aailable to #se/

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3. "roce#re

Procedure Remark

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