penyebab dan penanggulangan korosi pipa cup heat

7/25/2019 Penyebab dan Penanggulangan korosi pipa cup heat

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LAPORAN KERJA PRAKTEK

PT. PERTAMINA EP ASSET 3 TAMBUN FIELD(15 September 2015 1! O"t#ber 2015$

Pe%&eb'b '% Pe%'%))*+'%)'% K#r#,- p'' P-p' *p /e't

D-,*,*% #+e

J#'%e, J'me, 130!3!20

Ar- Er-'%t# 120

F'"*+t', Te"%-" U%-er,-t', I%#%e,-'

Te"%-" Met'+*r)& '% M'ter-'+

Dep#"

2015

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KATA PENGANTAR

P*4- ,&*"*r pe%*+-, p'%4't"'% "e'-r't A++' S6T. 't', ter,e+e,'-"'%%&'

pr#,e, "er4' pr'"te" -%- '% e%)'% ber"'tN&' pe%*+-, memper#+e ,em'%)'t

'% -e-e *%t*" me%&e+e,'-"'% t*)', "*,*, '% +'p#r'% "er4' pr'"te".

T*4*'% *t'm' "er4' pr'"te" ''+' ')'r m'',-,7' 'p't me+-'t8 be+'4'r

'% +eb- '+'m mem''m- me%)e%'- pe"er4''% &'%) '"'% -''p-8 m'mp*

me%er'p"'% -+m* &'%) -pe+'4'r- ,e+'m' "*+-' '% me%))*%'"'%%&' *%t*"

meme'"'% per,#'+'% %&'t' - +'p'%)'%8 ,ert' m'mp* ber"#m*%-"',- '%

ber"##r-%',- e%)'% b'-" ber,'m' re"'%re"'% '+'m ,*'t* +-%)"*%)'% "er4'.

L'p#r'% -%- -,*,*% ,eb')'- ',-+ "er4' pr'"te" pe%*+-, - per*,''%tr'%,p#rter m-%&'" me%t'8 PT. Pert'm-%' 9', (Pert')',$ e%)'% pe%emp't'%

,e+'m' t-)' m-%))*. L#"',- "'%t#r Pert')', ber'' - Ke%te%8 P'+emb'%).

Se+'m' pe+'",'%''% "er4' pr'"te" -%-8 pe%*+-, te+' -b'%t* #+e berb')'-

p-'". U%t*" -t* pe%*+-, me%&'mp'-"'% *'p'% ter-m' "',- "ep''

1. A++' S6T. 8 't', ,e)'+' ber"'t '% per+-%*%)'%N&' ,e-%))' pe%*+-,

,e+'+* '' '+'m "e'''% ,e't ,e-%))' 'p't me%&e+e,'-"'% +'p#r'% -%-e%)'% b'-"

2. Or'%) t*' "'m-8 '&' '% -b* "'m- &'%) t-'" e%t-%&' member-"'%

*"*%)'%%&' 't', ,em*' "e)-'t'% "'m-.3. Dr. Sr- /'r4'%t# ,e+'"* Ket*' Dep'rteme% Met'+*r)- '% M'ter-'+

U%-er,-t', I%#%e,-'.:. Dr. Ir. S#t&' A,t*t-%-%),-8 M.E%). ,e+'"* K##r-%'t#r Ker4' Pr'"te"

Dep'rteme% Met'+*r)- '% M'ter-'+ U%-er,-t', I%#%e,-'8 't', -4-% &'%)

-ber-"'% "ep'' pe%*+-, *%t*" me+'"*"'% "er4' pr'"te".5. B'p'" A%re. ,e+'"* pemb-mb-%) "er4' pr'"te" &'%) te+' b'%&'"

member- pe%*+-, ,'r'% '+'m me+'",'%'"'% "er4' pr'"te".!. Se)e%'p ,t';; '% "'r&'7'% PT. Pert'm-%' EP - T'mb*% 't', b-mb-%)'%

'% b'%t*'%%&'.


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b*-m'% ,'%)'t pe%*+-, 'r'p"'%. Sem#)' +'p#r'% "er4' pr'"te" -%- 'p't

berm'%;''t b')- ,em*' p-'".

Dep#"8 22 N#ember 2015

Pe%*+-, Pe%*+-, 2

J#'%e, J'me, Ar- Er-'%t#

NPM 130!3!20 NPM 120

D#,e% Pemb-mb-%) Ker4' Pr'"te" Pe%*+-,

Dr. B'r*+ M*%-r ST.8 M.E%).S

NIM

DAFTAR ISI

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LEMBAR JUDUL====..===============.=====1

KATA PEN9ANTAR===================.====2

DAFTAR ISI=======...===================.3BAB 1 PENDA/ULUAN====================...=:

1.1 L't'r Be+'"'%)=====================...51.2 R*'%) L-%)"*p=====================...

2.1 Se4'r' Per"emb'%)'% Per*,'''%=============....>

2. 2 ?-,- '% M-,- Per*,'''%....................................................................10

2.3 Or)'%-@'t-#% Str*t*re.........................................................................12

2.: Se*r-t& Str*t*re..............................................................................12

2.5 6#r"-%) Are' At--t&........................................................................13

BAB 3 DASAR TEORI================.======1

3.1 K#r#,- '% De)r'',- M'ter-'+3.2 Pr-%,-p K#r#,-1

3.3Term#-%'m-"' K#r#,-20

3.: L'4* K#r#,-22

3.5 F'"t#rF'"t#r K#r#,-22

3.! Met#e I%,pe",-23

3.< Up'&' Pe%e)''% '% Pe%)e%'+-'% K#r#,-2!

BAB : ANALISA DAN PEMBA/ASAN:.1 D-me%,- Perm','+''%==================.354.2 Per*m*,'% P#"#"

Perm','+''%==============..3!:.3 I%terpret',- D't' '% I%;#rm',-===============30 :>0:.30 15>31.5< :3.!5RDL 25.50 3:.30 2:


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T'mb*%

De%)'% ',-+ pr#*",- ,epert- ter'%t*m '+'m T'be+ 1.18 ,'+' ,'t*

'+ &'%) me%4'- %-+'- +eb- 'r- Field T'mb*% &'-t* ',-+ pr#*",-

associated gas &'%) *"*p be,'r. B-+' -"#%er,-"'% "e '+'m barrel oil

equivalent (b#e$8 r't'r't' ',-+ pr#*",- Field T'mb*% ''+' ,ebe,'r

1#.4/0 $e. Pre,e%t',- pr#*",- )', p'+-%) be,'r -'p't"'% 'r- Str*"t*r

T'mb*%8 &'-t* ,ebe,'r 0230 .

Associated gas T'mb*% &'%) *"*p be,'r 'p't -e",tr'"

me%)',-+"'% "#%e%,'t &'%) -)*%'"'% *%t*" me%'mb' ',-+ pr#*",-

T'mb*%. D'+'m me+'"*"'% pr#,e, ter,eb*t8 SP T'mb*% memb'%)*% 2

condensate plant8 -m'%' P1 e%)'% "'p',-t', 12MMSFD '% P 2

e%)'% "'p',-t', 15 MMSFD. Se'r' terminology8 Condensate Plant -%-

e;e"t-; -)*%'"'% *%t*" pr#,e, me%)e",tr'" "#%e%,'t 'r- associated gas.

N'm*%8 ',-+ pr#*",- condensate ;+*"t*'t-;8 b'"'% ,''t -%- e%er*%)

me%)'+'m- pe%*r*%'%8 'p't -+-'t )r';-" - b'7' -%-

!ambar 1.1 !ra"ik Produksi #ondensa$ %P1 & %P2 $ahun 2013'201

Pe%*r*%'% pr#*",- "#%e%,'t b-,' -,eb'b"'% "'re%' performance

"-%er4' '% maintenance 'r- "#%-,- condensate plant&'%) "*r'%) b')*,.

B-+' "-t' t-%4'* 'r- *%-t - '+'m ,-,tem%&'8 pr#,e, &'%) pe%t-%) '+'m

me%)e",tr'" "#%e%,'t 'r- associated gas &'-t* p'' cooling system. B-+'

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ter4'- m','+' p'' cooling system -%- 'p't me%)'"-b't"'% ',-+ pr#*",-

"#%e%,'t me%*r*%8 b'"'% me%)'"-b't"'% condensate plant trip.

Re%'%&' "e'%'+'% cooling system condensate plant me+'t'rbe+'"'%)-

pe%*+-,'% KK6 "'+- -%-8 &'%) me%)e'+*',- "-%er4' '% perm','+''% &'%)

ter4'- - condensate plant8 "*,*,%&' p'' cooling system. D'r- ',-+

e'+*',-8 ,e+'%4*t%&' 'p't -'%'+-,-, *%t*" me%4'- ','r pe%&e+e,'-'%

m','+' '% me%)#pt-m'+"'% "-%er4' cooling system - Condensate Plant

Field T'mb*%.

1.2 Ruang L&ngku5

A'p*% r*'%) +-%)"*p 'r- KK6 -%- ''+' ,eb')'- ber-"*t 1. Pemb'','% te"%-, '% #per',-#%'+ 'r- Condensate Plant Str*"t*r

T'mb*%8 -;#"*,"'% p'' Condensate Plant2.2. E'+*',- "-%er4' #per',- Condensate Plant 28 "*,*,%&' p'' pr#,e,

cooling system.3. Pr#b+em ,#+-%) '% #pt-m'+-,',- "-%er4' Cooling System Condensate

Plant Str*"t*r T'mb*%.

1.# Mak%ud dan Tu6uan

M'",* 'r- pe%*+-,'% KK6 -%-8 -'%t'r'%&' 1. Me%)et'*- '+*r pr#,e, '% "-%er4' #per',- Condensate Plant Str*"t*r

T'mb*%.2. Me%)e'+*',- "-%er4' #per',- Condensate Plant Str*"t*r T'mb*%8

"*,*,%&' p'' Condensate Plant2.3. Me%)'%'+-,' perm','+''% &'%) ter4'- p'' Cooling System

Condensate Plant 2 Str*"t*r T'mb*%.

1.4 Met$d$l$g& Penel&t&an

Met##+#)- pe%e+-t-'% '+'m pe%*+-,'% KK6 -%- ''+' ,eb')'- ber-"*t :.3.1 Ob,er',- L'p'%)'%

Ob,er',- -+'"*"'% *%t*" me%)et'*- #per',-#%'+ "er4' 'r-Condensate Plant '% perm','+''% &'%) ,er-%) ter4'- - +'p'%)'%.

:.3.2 St*- L-ter't*r P'' ,t*- +-ter't*re -%- -)*%'"'% berb')'- re;ere%,- b'-" 'r- -%ter%et8

b*"* '% 't' 'r- berb')'- p-'".:.3.3 D-,"*,-

D-,"*,- '%t'r p-'" &'%) ter"'-t &'-t* F*%),- ealibility! Availability

and "aintenance #A"$.

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BAB IIPROIL PERUSA!AAN

2.1 Se4'r' Per"emb'%)'% Per*,'''%

Se-r-%) e%)'% ,em'"-% b'%&'"%&' ,*mber m-%&'" me%t' &'%)

,*' -tem*"'%8 p'' '"-r 'b' "e1 m*+'- --r-"'% beber'p'

per*,'''%per*,'''% m-%&'" ',-%)8 ,epert- Shell! Stanvac! oyal %utch

Company8 ++. &'%) me+'"*"'% pemb#r'% - I%#%e,-'8 b'r* ,ete+'I%#%e,-' mere"' p'' t'*% 1>:58 *,'' *%t*" me%)'mb-+ '+-

"e"*',''% ,e"t#r -%*,tr- m-%&'" '% )', b*m- m*+'- -+'"*"'%.

Ber','r"'% U%'%)U%'%) Pert'mb'%)'% M-%&'" '% 9',

B*m-8 UU N#.::1>!1 -be%t*"+' t-)' per*,'''% %e)'r' (PN$ - ,e"t#r

m-%&'" '% )', b*m-8 &'"%-

1 PN PERTAMIN ber','r"'% PP N#.31>!12 PN PERMINA ber','r"'% PP N#.1>1>!13 PN PERMI9AN ber','r"'% PP N#.1>>1>!1

P'' t'*% 1>!5 PN PERMI9AN -b*b'r"'%8 ,em*' ;',-+-t',

pr#*",-%&' -,er'"'% "ep'' PN PERMINA '% ;',-+-t', pem','r'%%&'

-,er'"'% "ep'' PN PERTAMIN. P'' t'*% 1>! --r-"'% PN

PERTAMINA &'%) mer*p'"'% )'b*%)'% 'r- PN PERMINA '%

PERTAMIN '% p'' t'%))'+ 1< September 2003 PN PERTAMINA

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ber*b' %'m' me%4'- PT. PERTAMINA (Per,er#$. D'+'m me+'",'%'"'%

t*)', ter,eb*t8 PT. PERTAMINA mem-+-"- emp't "e)-'t'% *t'm'8 &'"%-

' E",p+#r',- '% Pr#*",-

Ke)-'t'% -%- me+-p*t- pe%'r-'% +#"',- &'%) mem-+-"- p#te%,-

"eter,e-''% m-%&'" '% )', b*m-8 "em*%)"-%'% pe%'mb'%)'%%&'8

,ert' pr#,e, pr#*",- me%4'- b''% b'"* *%-t pe%)#+''%.

b Pe%)#+''%

Ke)-'t'% -%- me+-p*t- pr#,e, -,t-+',-8 pem*r%-'%8 '% re'",- "-m-'terte%t* *%t*" me%)#+' crude me%4'- pr#*" &'%) --%)-%"'%8

,epert- prem-*m8 ,#+'r8 "er#,-%8 LP98 ++.

Pembe"'+'% '% Pe%-,tr-b*,-'%Ke)-'t'% pembe"'+'% me+-p*t- -mp#r crude ,eb')'- b''% b'"* *%-t

pe%)#+''% me+'+*- ,-,tem perp-p''%8 ,e'%)"'% "e)-'t'%

pe%-,tr-b*,-'% me+-p*t- pe%)'p'+'%. Pe%*%4'%)

#%t#%&' r*m' ,'"-t '% pe%)-%'p'%.

2.2 ?-,- '% M-,- Per*,'''%

?-,-

REPETITA I (200!200$ Me%4'- per*,'''% m-%&'" '%

)', b*m- &'%) e;e"t-; '% e;-,-e%.

REPETITA II (200>2011$ Me%4'- pr#*,e% m-)', %#m#r

,'t* - I%#%e,-'. REPETITA III (2012201:$ Me%4'- Pert'm-%' EP Ke+',

D*%-'..

M-,-

Me+'",'%'"'% pe%)*,'''% ,e"t#r *+* m-%&'" '% )', e%)'%

ber7'7','% +-%)"*%)'%8 ,e't '% me%)*t'm'"'% "e,e+'m't'% ,ert'

"e*%))*+'% &'%) member-"'% %-+'- t'mb' b')- pem'%)"* "epe%t-%)'%.

Tata N&la& PT. PERTAMINA (Per%er$)

7

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1 LEAN (BERSI!)

D-"e+#+' ,e'r' pr#;e,-#%'+8 me%)-%'r- be%t*r'%

"epe%t-%)'%8 t-'" me%#+er'%,- ,*'p8 me%4*%4*%) t-%))- "eper'&''%

'% -%te)r-t',. Berpe#m'% p'' ',',',', t't' "e+#+' "#rp#r',- &'%)

b'-".

2 OMPETITI*E (KOMPETITI)

M'mp* ber"#mpet-,- '+'m ,"'+' re)-#%'+ m'*p*%

-%ter%',-#%'+8 me%#r#%) pert*mb*'% me+'+*- -%e,t',-8 memb'%)*%

b*'&' ,''r b-'&' '% me%)'r)'- "-%er4'.

# ONI,ENT (PERA-A ,IRI)

Berper'% '+'m pemb'%)*%'% e"#%#m- %',-#%'+8 me%4'-pe+#p#r '+'m re;#rm',- BUMN8 '% memb'%)*% "eb'%))''%

b'%),'.

4 USTOMER OUSE, (OKUS PA,A PELANGGAN)

Ber#r-e%t',- p'' "epe%t-%)'% pe+'%))'% '% ber"#m-tme%

*%t*" member-"'% pe+'&'%'% terb'-" "ep'' pe+'%))'%.

8 OMMERIAL (KOMERSIAL)

Me%-pt'"'% %-+'- t'mb' e%)'% #r-e%t',- "#mer,-'+me%)'mb-+ "ep*t*,'% ber','r"'% pr-%,-ppr-%,-p b-,%-, &'%) ,e't.

7 APABLE (BERKEMAMPUAN)

D-"e+#+' #+e pem-mp-% '% pe"er4' &'%) pr#;e,-#%'+ '%

mem-+-"- t'+e%t' '% pe%)*',''% te"%-, t-%))-8 ber"#m-tme% '+'m

memb'%)*% "em'mp*'% r-,et '% pe%)emb'%)'%.

2.2 Pr#;-+ PT. Pert'm-%' EP

PERTAMINA EP 9UIK ATS

L&ne $: Bu%&ne%% ; Eer 2""8 a% a %u%&d&ar' $:

PT. Perta>&na (Per%er$)

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?$rk&ng Area ; Ind$ne%&a

@ 11#.72/ k>2 (:r$> Rantau t$ Pa5ua)

8 A%%et% 2" &eld% 20 KSO 27 TA

# Pr$6e=t% 1 Un&t&%at&$n

O&l Pr$du=t&$n (2"1#) ; 1218 MBOP,

Ga% Pr$du=t&$n (2"1#) ; 1."#1 MMS,

Pr$:&t a:ter ta< (-T, ,e% 2"1#) ; R5. 218 B&l&$n

O&l Target (2"14) ; 120 MBOP,

Ga% Target (2"14) ; 1."32 MMS,

Perta>&na EP $ntr&ut&$n

:$r Perta>&na !$ld&ng ; @ O&l 78 dan Ga% 3"

Pr$5er ; Green 1/

Blue 3

2.3 r)'%-@'t-#% Str*t*re

A%%et # General Manager ; a=hr&al

A%%et # Ta>un &eld Manager ; Adullah

Petr$leu> Eng. A%t. Man ; IndarCan !

O5r. Plann&ng A%t. Man ; Ade Ta%'a D)

Pr$d. O5r A%t. Man ; ,6$k$ S$e%en$

?O?S A%t. Man ; Ian O S. D)

Ta>un RAM A%t. Man ; ,ed' Kurn&aCan

!SSE A%t. Man ; S&g&t I%&ant$r$

&nan=e A%t. Man ; N$&'ant& R.

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SM A%t. Man ; M&ntr$ A ?.

FaCa O5%. IT A%t. Man ; Ru%dad&

2.: Se*r-t& Str*t*re

A%% Man !SSE ; S&g&t I%&ant$r$

Sen&$r Se=ur&t' Sta:: Para S&%Cad&

Se=ur&t' Sta:: Od&ng %et&ad&

PT M$k$g&nta P Gerr&ndra

,&%tr&k Ta>un #7 $rg

,&%tr&k P,T 13 $rg

,&%tr&k R,L 7 $rg

MB Un&t ; 7 $rg

2.5 6#r"-%) Are' '% At--t&

SP. T'mb*%

78 Su>ur d&$r (47 Su>ur Pr$duk%& )

1# Su>ur In6ek%&8".""" C5d ?ater In6e=t&$n Plant

$nden%ate Pr$du=t&$n @ 4"" arrel% 5er da'2 $nden%ate Plant

Flo) Pro*ess %ondensa$e Plan$ Struktur Ta>un

Str*"t*r T'mb*% mem-+-"- %-+'- +eb- ber*p' p#te%,- associated gas

&'%) *"*p be,'r b-,' -)*%'"'% *%t*" me%'mb' ',-+ pr#*",- T'mb*%

e%)'% 'r' )', ter,eb*t -e",tr'" me%)',-+"'% "#%e%,'t. D'+'m

me+'"*"'% pr#,e, ter,eb*t8 SP T'mb*% memb'%)*% 2 #%e%,'te p+'%t8

-m'%' P 1 e%)'% "'p',-t', 12 MMSFD &'%) bert*4*'% me%'mb'

per#+e'% "#%e%,'t 120150 b'rre+ per '&. Se'%)"'% P 2 e%)'%

"'p',-t', 15 MMSFD8 bert*4*'% me%'mb' per#+e'% "#%e%,'t

,ebe,'r 2:0 b'rre+ per '&. A'p*% flo& process condensate plant

-)'mb'r"'% p'' Ga>ar 2.1- b'7' -%-.

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!ambar 2.1 Flo) Pro*ess %ondensa$e Plan$ S$ruk$ur Tambun

D'p't -+-'t 'r- Ga>ar 2.1 - 't',8 flo& process condensate

plant e%)'% -%p*t'% )', berte"'%'% t-%))- '% temper't*r t-%))-8 &'%)

mer*p'"'% output 'r- gas compressor -'+-r"'% m',*" "e heat

exchanger. Feed gas me%)'+'m- pr#,e, pe%-%)-%'% (cooling system$8

-m'%' ter4'- perp-%''% "'+#r '%t'r' me-' pe%-%)-% (glycol '% '-r$

e%)'%feed gas. 'lycol -)*%'"'% *%t*" me%*r*%"'% t-t-" be"* 'r- '-r

&'%) ber,-r"*+',- - '+'m chiller8 ,e+'%4*t%&' '-r'% pe%-%)-% (chilled

liquid$ "e+*'r 'r- chiller m',*" "e '+'m tube heat exchanger *%t*"

me%*r*%"'% temper't*r )', &'%) me%)'+-r p''shell.D'r- cooling system ter,eb*t8 ,eb')-'% )', me%)'+'m- per*b''%

;',' me%4'- liquid. 9', '% liquid -p-,'"'% - '+'m gas liquid

coalescer8 -m'%' ter4'- pr#,e, pem-,''% '"-b't 'r- perbe''% density

'% ;r'",- ber't8 )', -'+-r"'% me%*4* PDT8 ,e'%)"'% +-G*- -'+-r"'% "e

liquid(liquid separator. P'' liquid(liquid separator8 ter4'- pem-,''%

'%t'r' liquid '% produced &ater. Produced &ater -"-r-m "e &ater

storage8 "em*-'% '"'% -)*%'"'% *%t*" &ater treatment. Se'%)"'%

liquid&'%) "e+*'r 'r- ,ep'r't#r m',- ber,-;'t &ild condensate8 -m'%'

m',- b'%&'" me%)'%*%) met'%' '% et'%' &'%) m*' me%)*'p. Per+*

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pr#,e, ,t'b-+-,',- me%4'- stable condensate e%)'% m'",-m'+ R?P 10

')'r 'm'% *%t*" -tr'%,p#rt',-"'%.)ild condensate m',*" "e '+'mstabili*ing column8 +'+* -+'"*"'%

pr#,e, pem'%','% #+e reboiler e%)'% me-' pem'%', term-%#+8 &'%)ter+eb- '*+* -p'%',"'% me%))*%'"'% thermal oil heater. E;e" 'r-

pr#,e, pem'%','% ter,eb*t8 condensate &'%) mem-+-"- ;r'",- &'%)

ber't'"'% "e b')-'% b'7' stabili*ing column8 ,e'%)"'% ;r'",-

-r#"'rb#% r-%)'% '"'% me%)'+'m- pe%)*'p'%.O*tp*t 'r- stabili*ing column ber*p' stabili*ed condensate &'%)

temper't*r%&' m',- t-%))-8 ,e-%))' per+* --%)-%"'% me%4'-

temper't*r &'%) re%' e%)'% me%))*%'"'% condensate cooler *%t*"

me%)-%'r- pe%)*'p'% - '+'m t'%)"- pe%&-mp'%'% "#%e%,'t.

K#%e%,'t -'+-r"'% "e '+'m cooler me%)'+'m- pe%*r*%'% temper't*r8

-b'%t* #+e ;-% ;'% (*'r'$. Kem*-'% "#%e%,'t -+e7't"'% "e ceramic

membrane *%t*" +eb- mem*r%-"'% "#%e%,'t ter,eb*t8 ,e-%))' ,-'p

-"-r-m "e pr#,e, +eb- +'%4*t me%*4* condensate tank e%)'%

me%))*%'"'% condensate transfer pump.

S5e%&:&ka%& dan O5era%&$nal Un&t %ondensa$e Plan$

Condensate Plant1 '% 2 Str*"t*r T'mb*% mem-+-"- '+*r pr#,e,

'% *%-t &'%) ,'m'8 ,epert- &'%) te+' -)'mb'r"'% p'' Ga>ar 2.1.

N'm*%8 ter'p't perbe''% p'' "'p',-t', p+'%t8 -m'%' "'p',-t', P 1

,ebe,'r 12 MMSFD '% "'p',-t', P 2 ,ebe,'r 15 MMSFD. U%-t &'%)

be"er4' p'' "e*' condensate plant -%- mem-+-"- "e,'m''% ;*%),- '%

4e%-,. A%'+-,' "'+- -%- -;#"*,"'% p'' condensate plant 28 ''p*%

,pe,-;-"',- *%-t condensate plant2 -t*%4*""'% p'' t'be+ ber-"*t.

Tael 2.1 S5e%&:&ka%& Un&t $nden%ate Plant 2 (Su>er ; Pr$=e%% H

In%tru>ent ,&agra> P 2)

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Spe,-;-"',- 'r- m',-%)m',-%) *%-t p'' Tael 2.1 mer*p'"'% ','r

#per',-#%'+ *%-t be"er4'. M'ter-'+ 'r- ,em*' *%-t 'mp-r ,'m' &'-t*

ber*p' carbon steel8 %'m*% *%t*"piping system me%))*%'"'%stainless

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23
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24/50

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3 I%-b-t#r +eb- *+* me%)"#r#,- +#)'m%&'8 '%

me%)',-+"'% ,*'t* @'t "-m-' &'%) "em*-'% me+'+*-

per-,t-7' ',#rp,- 'r- pr#*" "#r#,- ter,eb*t

membe%t*" ,*'t* +'p-,'% p',-; p'' perm*"''% +#)'m.

: I%-b-t#r me%)-+'%)"'% "#%t-t*e% &'%) ')re,-; 'r-

+-%)"*%)'%%&'.I%-b-t#r "#r#,- -b')- ber','r"'% 4e%-,%&'

' I%-b-t#r '%#-

Me%*r*%"'% +'4* "#r#,- e%)'% 'r' me%)'mb't

tr'%,;er -#%-#% +#)'m "e '+'m +'r*t'% &'%) ber,-;'t "#r#,-;

"'re%' ber"*r'%)%&' '%#' '"-b't p',-',-.

b I%-b-t#r "'t#-"

Me%*r*%"'% +'4* "#r#,- e%)'% 'r' me%)'mb't ,'+','t* t''p p'' pr#,e, "'t#-"8 ,epert- pembeb','% -#%-#%

-r#)e%8 ,epert- pembeb','% -#%-#% -r#)e% '%

pe%'%)"'p'% #",-)e%.

I%-b-t#r #r)'%-"

Se%&'7',e%&'7' #r)'%-" &'%) 'p't -)*%'"'%8 &'-t*

,e%&'7',e%&'7' &'%) m'mp* membe%t*" ,e%&'7'

"#mp+e",8 b'-" "#mp+e", &'%) ter+'r*t m'*p*% "#mp+e",

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&'%) me%)e%'p. Se-%))' -per+*"'% ''%&' )*)*, ;*%),-

&'%) me%)'%*%) 't#m't#m &'%) m'mp* membe%t*"

-"'t'% "#'+e% ter"##r-%',-8 m-,'+%&' 't#m %-tr#)e%8

be+er'%)8 p'' ,*'t* ,e%&'7' terte%t*.

I%-b-t#r mem-+-"- e;-,-e%,- e%)'% per,'m''% ,eb')'- ber-"*t

Efisiensi Inhibitor=XAXB

XA x100

- m'%' A +'4* "#r#,- t'%p' -%-b-t#r

B +'4* "#r#,- e%)'% pe%'mb''% -%-b-t#r

I%-b-t#r -"'t'"'% e;e"t-; 'p'b-+' %-+'- e;-,-e%,- +eb- be,'r 'r-

0

3 #'t-%)

Coating mer*p'"'% ,*'t* ,tr'te)- &'%) 'p't -)*%'"'%

*%t*" me%e)' "#r#,-. Ut'm'%&'8 coating ber;*%),- ,eb')'-

pemb't', ;-,-" '%t'r' ,*b,tr't e%)'% +-%)"*%)'% &'%) "#r#,-;

%'m*% 4*)' 'p't ber;*%),- ,eb')'- ,*mber b')- ,e%&'7'

-%-b-t#r."etallic coating4*)' ber;*%),- ,eb')'- pemb't', ;-,-"

t''% "#r#,- ,e"'+-)*, b-,' me%4'- '%#' "#rb'% '+'m

pr#te",- "'t#-" 4-"' -'p+-"',-"'% p'' +#)'m 't'* p'*'%

berbe' &'%) mem-+-"- E#rr+eb- p#,-t-;. E;-,-e%,- 'r- coating

-t* ,e%-r- '%t'r' 50 -%))' >> ter)'%t*%) p'' 7'"t*8 4e%-,8

'% met#e -%,t'+',-. Sebe+*mcoating-'p+-"',-"'%8 perm*"'%

m'ter-'+ &'%) '"'% -coating 'r*, -per,-'p"'%.

Coating&'%) b-',' -'p+-"',-"'% p'' mud tank ,eb*'

rigb-','%&' -)*%'"'% '+'m be%t*" 't 't'*painting. U%t*"member-"'% per+-%*%)'% +eb-8 coating -ber-"'% p'' b')-'%

+*'r '% 4*)' '+'m t'%)"- '% #'t-%) 'p't me%)'%*%)

+#)'m +'-% e%)'% E#rr+eb- re%' ,e-%))' 'p't ,e"'+-)*,

ber;*%),- ,eb')'- '%#' "#rb'% '+'m pr#te",- "'t#-" me+'+*-

pembe%t*"'% ,e+ )'+'%-".

: Pr#te",- K't#-"

28


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Pr#te",- "'t#-" mer*p'"'% met#e *%t*" me%)*r'%)-

+'4* "#r#,- e%)'% pr-%,-p ,*p+'- e+e"tr#% 'r- '%#' "e "'t#'.

M'ter-'+ &'%) berper'% ,eb')'- pe+-%*%) -,eb*t e%)'%

'%#'. Seme%t'r' m'ter-'+ &'%) '"'% -+-%*%)- -,eb*t e%)'%

"'t#'. A%#' '"'% me%)'+'m- #",-',- '% me+ep', e+e"tr#%

*%t*" -,*p+'- "e "'t#' ,e-%))' "'t#' t-'" ep't ter+'r*t.

Pr#te",- "'t#-" mer*p'"'% "#%tr#+ "#r#,- ,e"*%er.

Met#e -%- '"'% e;e"t-; -)*%'"'% 'p'b-+' 'r*, +-,tr-" - '%t'r'

'%#' '% "'t#' 'p't me%)'+-r e%)'% b'-" p''shell (b''%$

t'%)"-. J-"' 'r*, +-,tr-" ter'mb't m'"' 'p't me%*r*%"'%

e;e"t--t', pr#te",- "'t#-" &'%) -)*%'"'%. F'"t#r;'"t#r &'%)'p't me%)'mb't '+-r'% 'r*, +-,tr-" '%t'r' '%#' '% "'t#'

,eb')'- ber-"*t.

1 A,p'+8 ,eme%8 p',-r8 m-%&'".

2 Re,-,t--t', t'%' &'%) t-%))- 't'* p#%',- b't*.

3 A'%&' bottom p+'t t'%)"- +'m' &'%) tert-%))'+ p''

,''t pem','%)'% t'%)"- b'r*.

Metal P$tent&al

(u+uS$4)

Stee+ 50 m?Stee+ (,*+p'te re*-%) b'ter-'$ >50 m?#pper '++#&, 500 t# !50 m?Le' !00 m?A+*m-%-*m >50 t# 1200 m?

T'be+ III.:. P#te%,-'+ *%t*" pr#te",- "'t#-"

Ter'p't *' 4e%-, pr#te",- "'t#-" &'%) *m*m-)*%'"'%8 &'-t*sacrificial anode '% impressed current.

A S'r-;--'+ A%#e

Met#e '%#' "#rb'% mer*p'"'% met#e *%t*"

me%)'mb't "#r#,- e%)'% me%))*%'"'% +#)'m &'%)

+eb- re%' p#te%,-'+%&' ,e-%))' '"'% ter"#r#,- +eb-

*+* -b'%-%)"'% e%)'% +#)'m &'%) -+-%*%)-.

L#)'m e%)'% p#te%,-'+ +eb- re%' '"'% ber;*%),-

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,eb')'- '%#' &'%) me%)'+'m- pr#,e, #",-',- - m'%'

e+e"tr#%e+e"tr#% '"'% -+ep', '% me%)'+-r me%*4*

"'t#'. L#)'m &'%) -+-%*%)- berper'% ,eb')'- "'t#'

'% me%er-m' e+e"tr#% &'%) 't'%) 'r- '%#' ,e-%))'

"'t#' t-'" ep't ter+'r*t 't'* ter"#r#,-. Seme%t'r' -t*8

+#)'m &'%) berper'% ,eb')'- '%#' ,em'"-% +'m' '"'%

,em'"-% ter+'r*t "'re%' b'%&'" me+ep', e+e"tr#% 't'*

e%)'% "'t' +'-% ter"#r#,-.

9'mb'r III.


31/50

9'mb'r III.. Deret 9'+'%-"

Ter'p't t-)' m''m '%#' "#rb'% &'%) b-','

-)*%'"'%8 &'"%- ,e%) (Q%$8 '+*m-%-*m (A+$8 '%

m')%e,-*m (M)$. T-'pt-'p '%#' mem-+-"- %-+'-

p#te%,-'+ '% r'p't 'r*, &'%) berbe'be' ,e,*'-

e%)'% t'be+ ber-"*t.

An$de

Mater&al

,en%&t'

(g.=>#)

P$tent&al $lt%

u+uSO4

A>5hr%

5er kg

T'5&=al a

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2 Pem','%)'% re+'t-; m*'.

3 B-'&' per'7't'% t-'" ter+'+* be,'r.

: J'r'%) me%)'+'m- m','+' ber"'-t'% e%)'% stray

current+

5 M#'+ -%e,t',- re%' *%t*" t'%)"- e%)'%

-'meter "e-+.

! T-'" ,er-%) memb*t*"'% m#%-t#r-%).

Se'%)"'% *%t*" "e"*r'%)'% me%))*%'"'% met#e -%-

,eb')'- ber-"*t.

1 %riving potential terb't',.

2 Ar*, &'%) -',-+"'% re%'.3 T-'" pr'"t-, -)*%'"'% *%t*" me+-%*%)- ,tr*"t*r

&'%) be,'r.

: Terb't', *%t*" pe%))*%''% p'' t'%' e%)'%

re,-,t--t', re%' .

B Impre,,e *rre%t

Met#e pr#te",- "'t#-" -%- t-'" berbe' 4'*

e%)'% pr-%,-p sacrificial anode 't'* '%#' "#rb'%.Perbe''% '%t'r' "e*'%&' ter+et'" p'' pe%))*%''%

,*mber '&' e",ter%'+ - m'%' met#e impressed

current memb*t*"'% po&er supply *%t*" 'r*, +-,tr-".

Ar*, +-,tr-" &'%) -)*%'"'% 'r*, D (%irect Current$

,e-%))' -b*t*"'% per'+'t'% *%t*" me%)*b' 'r*, 'r-

A me%4'- D8 ,epert- transformer rectifier! solar

generating! '% thermo(electric generator.

32


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9'mb'r III.>. S"em' pr#te",- "'t#-" impressed current

Berbe' e%)'% sacrificial anode! impressed

current me%))*%'"'% '%#' -%ert ,e-%))' t-'" m*'

*%t*" ter+'r*t 't'* ter"#r#,-. D'r- ,e)- e;e"t--t', +eb-

b'-" -b'%-%)"'% '%#' "#rb'%. Ter'p't beber'p'

'%#' &'%) b-',' -)*%'"'% *%t*" met#e -%-8 &'"%-

t-t'%-*m &'%) -+'p-,- e%)'% mixed metal oxide (MMO$

't'* p+'t-%*m8silicon iron8 )r';-t8 '% m')%et-t.

An$de >ater&alMa2)

P+'t-%*m%-#b-*m 100 250 1500Le',-+er'%t-m#%

&100 250 1000

/-) ,-+-#% -r#% 100 10 1009r'p-te 200

T'be+ III.!. R'p't 'r*, *%t*" m'ter-'+ '%#' impressed

current

Ke*%t*%)'% 'r- me%))*%'"'% met#e impressed

current8'%t'r' +'-%

1 Mem-+-"- driving potential&'%) be,'r.

2 Ar*, &'%) -',-+"'% t-%))- ,e-%))' 'p't

-)*%'"'% *%t*" me+-%*%)- ,tr*"t*r &'%) be,'r.

3 Mem-+-"- 'r*, &'%) ber'r-',-.

33


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: D'p't -)*%'"'% 'mp-r - ,em*' t-%)"'t

re,-,t--t', t'%'.

Ke"*r'%)'% 'r- me%))*%'"'% met#e impressed

current ,eb')'- ber-"*t.

1 Ser-%) me%)'+'m- "e%'+'stray current+

2 B-'&' #per',- '% per'7't'%%&' t-%))-.

3 B*t* m#%-t#r-%) &'%) ,er-%).

BAB I*

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ANALISA ,AN PEMBA!ASAN

4.1 ,&>en%& Per>a%alahan

D'r- p'p'r'% ,ebe+*m%&'8 te+' -4e+',"'% pr-%,-p "er4' #%e%,'te

P+'%t Str*"t*r T'mb*%8 "*,*,%&' cooling system8 -m'%' pr#,e, -%-

me%)',-+"'% pr#*" e",tr'",- "#%e%,'t. D-+-'t 'r- performance

chiller (Ga>ar 2.2) me%)-%-"',-"'% ter4'-%&' m','+' - '+'m

,-,tem ter,eb*t. Perm','+''% '"t*'+ &'%) ter4'- -%))' me%&eb'b"'%

performance chiller re%'8 -'%t'r'%&' b##r%&' tube evaporator p''

chiller8 ,e-%))' '-r'% pe%-%)-% m',*" "e '+'m ;re#% R22 '%

me%)'"-b't"'% trouble p'' compressor chiller -%))' t-'" 'p't

ber#per',-. D- ,'mp-%) -t*8 ter4'-%&' perm','+''% p'' ,-,tempe%-%)-% -%))' me%&eb'b"'% condensate plant 2 trip8 &'-t* b##r%&'

tube heat exchanger8 b-+' heat exchangert-'" ber#per',-8feed gas'r-

)', compressor t-'" 'p't -e",tr'",- me%4'- condensate8 ,e-%))'

condensate plantp*% t-'" 'p't ber#per',-.Perm','+''% - 't', ter4'- p'' #%e%,'te P+'%t 1 2 Str*"t*r

T'mb*%8 &'%) me%)'"-b't"'% "e*' #%e%,'te p+'%t ,*t#7% (t-'"

ber#per',-$8 -m'%' #%e%,'te P+'%t 1 ,*t#7% p'' 1 M'ret 201: ,.

,''t -%- (Me- 201:$8 ,e'%)"'% #%e%,'te P+'%t 2 ,*t#7% p'' 1>

M'ret 201: ,. Apr-+ 201: (1> 'r-$. B-+' -t-%4'* 'r- ',pe"

"ee"#%#m-'%8 shutdo&n plant -%- te%t*%&' memb'7' "er*)-'% m'ter-+

b')- Str*"t*r T'mb*%8 ber-"*t -%- be,'r%&' "er*)-'% &'%) -t'%))*%)

per*,'''% (-"#%er,-"'% "e '+'m r*p-'$.Tael 4.1 L$%% $%t% Ak&at Shutd$Cn $nden%ate Plant

PlantShutd$Cn t&>e

(da')

Pr$d. $nden%ate

(arrel+da')

L$%% Pr$du=t&$n

(arrel)

P 1 !3 150 >:50P 2 1> 2:0 :5!0

D-+-'t 'r- tael 4.1 - 't',8 per*,'''% me%)'+'m- "er*)-'% (loss

production$ &'%) be,'r '"-b't condensate plant t-'" ber#per',-. Se+'-%

-t*8 per*,'''% p*% 'r*, me%)e+*'r"'% b-'&' perb'-"'% '% pe%))'%t-'%

'+'m 4*m+' &'%) be,'r ')'r p+'%t -%- 'p't ber#per',- "emb'+-. M'"'

'r- -t*8 per+* ''%&' e'+*',- '% '%'+-,' ter''p perm','+''% -%- ')'r

unplanned shutdo&n plant-%- t-'" ter4'- +')-.

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4.2 Peru>u%an P$k$k Per>a%alahan

Per*m*,'% m','+' '+'m pe%e+-t-'% -%- ''+' ,eb')'- ber-"*t 1. B')'-m'%' pe%)#per',-'% '% per;#rm'%e "-%er4' *%-t ("*,*,%&'

##+-%) ,&,tem$ p'' #%e%,'te P+'%t 2 Str*"t*r T'mb*%2. B')'-m'%' '%'+-,' me%)e%'- pe%&eb'b perm','+''% &'%) ter4'-

p'' ##+-%) S&,tem #%e%,'te P+'%t 2 Str*"t*r T'mb*%B')'-m'%' re"#me%',- '% pe%e"'t'% peme''% m','+' &'%) ter4'-

p'' ##+-%) S&,tem #%e%,'te P+'%t 2 Str*"t*r T'mb*%4.# Inter5reta%& ,ata dan In:$r>a%&

4.#.1 Pe"orman*e K&ner6a Un&t H Per>a%alahan 5ada %ooling Ss$em

%ondensa$e Plan$2

A%'+-,' "-%er4' *%-t -+'"*"'% *%t*" me%-%4'* 'p'"' *%-t

mem-+-"-performance&'%) ,*' b')*, 't'* m',- re%'. Performance"-%er4' *%-t b-,' "-t' -t*%) me+'+*- per-t*%)'% ,eb')'- ber-"*t.

Performance ( )= Running (hours )Shutdown(hours)(Running+Standby+Shutdown ) hours .........................................

(:.1$

Ber','r"'% 't' p'' Ga>ar 2.2 'p't ter+-'t 4*m+' r*%%-%)8

,t'%b&8 '% ,*t#7% (#*r,$ &'%) "em*-'% --t*%) e%)'% me%))*%'"'%

5er%a>aan 4.1 - 't',8 ,e-%))' "-t' per#+e performance "-%er4' t-'p *%-t.

A'p*% ',-+ per-t*%)'% %-+'- performance m',-%)m',-%) *%-t p'' t'be+

ber-"*t.

Tael 4.2Per"orman*eK&ner6a Un&t %ondensa$e Plan$2 (Fanuar& 2"1# A5r&l 2"14)

N$ Un&t Per"orman*e

1 -++er A :5.11

2 -++er B 1.11

3 -++er >2.3

: Reb#-+er >1.>2

5 Term'+ O-+ /e'ter >2.0:

! F-% ;'% ##+er >2.:1

D'r- 't' t'be+ - 't',8 'p't -+-'t performance "-%er4' *%-t &'%)

m',- re%' &'-t* -++er A '% -++er B8 -m'%' *%-t -%- be"er4' -

'+'m ,-,tem pe%-%)-% &'%) ter4'- pr#,e, pe%)e",tr',-'% "#%e%,'t 'r-

feed gas. Perm','+''% &'%) b-,' me%)'"-b't"'% -++er -%-shutdo&nb-,'

-'"-b't"'% #+e me-' (demin &ater'%glycol$8 m'ter-'+ (carbon steel

'% temb')'$8 #per',-#%'+8 '% e;e" 'r- "#%-,- e't eC'%)er. Se+'-%

performance -++er &'%) re%'8 perm','+''% +'p'%)'% &'%) ter4'-

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&'-t* b##r%&' tube heat exchanger8 -%))' me%&eb'b"'% p+'%t t-'" b-,'

ber#per',-.U%t*" me%)'%'+-,' ,-,tem pe%-%)-%8 -+'"*"'% pe%-%4'*'%

p'' heat exchanger'% chiller "'re%' ,'+-%) ber"'-t'% '% memp*%&'-

e;e" ter''p "-%er4' "e*'%&'.

4.#.2 K$nd&%& h&ller dan Med&a Pend&ng&n

Te+' -4e+',"'% 5ada 2.1.28 me%)e%'- #per',-#%'+ *%-t '% pr#,e,

cooling system condensate plant28 -m'%' ,-,tem -%- mem-+-"- 3 -++er

(A8 B8 '% $8 m',-%)m',-%) -++er memp*%&'- 2 ,-,tem (ter'p't 3

#mpre,,#r '% 1 e'p#r't#r '+'m 1 ,-,tem$. Re%'%&' performance

"-%er4' -++er ,''t -%- (Tael 4.2)-"'re%'"'% "em'mp*'% *%-t me%*r*%8-m'%' ,''t -%- : ,-,tem &'%) ber#per',-8 ,e'%)"'% 2 ,-,tem t-'"

ber#per',-8 '+ -%- ter4'- --%-"',-"'% #+e "eb##r'% tube evaporator

'% me%)'"-b't"'% beber'p' compressort-'" b-,' ber#per',-.D'+'m me%)'%'+-,' pe%&eb'b "eb##r'% tube evaporator8 "-t' +-'t

beber'p' -%-"',- 'r- ;'"t#r -%ter%'+ m'*p*% e",ter%'+ chiller8

-'%t'r'%&' 1. F'"t#r I%ter%'+

Re'",- &'%) ter4'- '%t'r' m'ter-'+ tube evaporator'% me-'

pe%-%)-% (triethylene glycol '% '-r pe%-%)-%$ '' "em*%)"-%'%

me%)'"-b't"'% ter4'-%&' ,'+-%). U%t*" me%)et'*- re'",- "-m-'

&'%) ter4'- '"-b't "#%t'" '%t'r' me-' pe%-%)-% '% m'ter-'+8 "-t'

per+* me%)et'*- "'%*%)'% 'r- m',-%)m',-%) e+eme% ter,eb*t.

A'p*% pe%)*4-'% +'b#r't#r-*m "e'''% '-r pe%-%)-% ,eb')'- ber-"*t.Tael 4.# !a%&l U6& La$rat$r&u> Kandungan A&r Pend&ng&n (Se5te>er 2"1#)

L$=at&$n Para>eter Re%ult Re=$>>endat&$n

P 2 p/ .< ppm 2: ppm

D-+-'t 'r- tael 4.# - 't',8 t-%))-%&' "'%*%)'% Fe '+'m '-r

pe%-%)-% (me+eb-- re"#me%',- ,e'r*,%&'$8 me%)-%-"',-"'%

ter4'-%&' "#r#,- p'' ,-,tem. Se+'-% -t*8 %-+'- 'r%e,, p*% -*4- *%t*"

me%)et'*- 4*m+' -#% '+-*m '% m')%e,-*m &'%) ter"'%*%)

'+'m '-r8 -m'%' %-+'- hardness &'%) t-%))- me%)-%-"',-"'%

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ter4'-%&' pembe%t*"'% scale "'re%' -#% '+-*m ter'%)"'t '%

bere'",- e%)'% m'ter-'+.

Tael 4.4 !a%&l U6& La ,e>&n ?ater dan Gl'=$l e%erta Reak%& terhada5

Mater&al (0 Me& 2"14)

D'p't -+-'t 'r- tael 4.4- 't',8 -,-m*+',-"'% '+'m 3 'r-8

pe%)'r* 'r- glycol '% demin &ater ter''p m'ter-'+ e",-,t-%)8

-m'%' pe%)'r* &'%) p'+-%) be,'r &'-t* demin &ater ter''p

carbon steel-%))' m'ter-'+ "e-+'%)'% ber't 082131 )r'm. /'+ -%-

&'%) me%)'"-b't"'% ter4'-%&' "#r#,- p'' m'ter-'+.

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!ambar .2 #andungan #orosi Ma$erial is$ing (Pengu4ian SM'5/6

D-+-'t p'' Ga>ar 4.28 pr#*" "#r#,- m'ter-'+ &'-t* "#r#,-

#",-',-8 -m'%' Fe #%te%t '% O",-)e% &'%) ter"'%*%) t-%))-8

pr#*" "'r't -%- ber*p' Fe2O3(em't-t$. Ter4'-%&' #",-',- - '+'m

,-"+*, pe%-%)-% '"-b't 'r- O2 m',*" "e '+'m ,-,tem. O2 &'%)

terb'7' ber,'m' '-r pe%-%)-% '"'% bere'",- e%)'% m'ter-'+8

,e-%))' membe%t*" "'r't +#)'m '% *'p '-r. Ber-"*t )'mb'r

ter4'-%&' #",-',- - '+'m ,-,tem pe%-%)-%.

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!ambar .3 Peris$i)a 7eaksi +ksidasi pada Logam

A'p*% re'",- re#", &'%) ter4'- -%))' membe%t*" "'r't

+#)'m ber-"*t -%-.

O",-',- 2Fe 2/2O Fe2O3 !/

!e

Re*",- 2rO: 10/ !e r2O3 5/2O

Re#", 2Fe 2 rO: 2/Fe2O3

r2O3 3/2O

Fe2O3mer*p'"'% pr#*" "'r't +#)'m ber*p' p'rt-"e+p'rt-"e+

Fe &'%) ter'%)"'t '"-b't 'r- ''%&' #",-',-. Fe2O3&'%) terb'7' -

'+'m '-r pe%-%)-% '"'% me%)e%'p "e b')-'% b'7' )++ ,t#r')e.

P'' ,-"+*, pe%-%)-% &'%) ter*, me%er*,8 tube evaporator '"'%

ter"-"-, #+e e%'p'% "'r't (Fe2O3$ -%))' ter4'- "eb##r'% tube

evaporator. A"-b't b##r%&' tube8 '-r pe%-%)-% &'%) me%)'%*%)

Fe2O3b-,' m',*" "e '+'m ;re#%8 b-+' '+ -%- ter4'- b-,' me%&eb'b"'%

,-,tem "#mpre,#r t-'" be"er4' e%)'% b'-"8 b'"'% "#mpre,#r

me%)'+'m- ,#rt ("#%,+et$ 't'* m#t#r burn out. I%- &'%) me%&eb'b"'%

2 ,-,tem (! "#mpre,#r$ p'' chillert-'" b-,' ber#per',- ,''t -%-.

2. F'"t#r E",ter%'+

B-+' -+-'t 'r- ;'"t#r e",ter%'+8 e;e" "#%-,- heat exchanger

p*% berpe%)'r* "'re%' me-' pe%-%)-% ,ete+' "e+*'r 'r- -++er8

+'+* -'+-r"'% m',*" "e '+'m tube heat exchanger. A-r pe%-%)-%

&'%) - '+'m%&' mem-+-"- "'%*%)'% terte%t* '"'% bere'",- e%)'%

m'ter-'+ tube (Tael 4.4)8 re'",- ter,eb*t me%&eb'b"'% "#r#,- p''

m'ter-'+ tube. /'+ -%- -,eb'b"'% #",-'#",-' +#)'m &'%) terbe%t*"

p'' pr#,e, '7'+ "#r#,-8 '"'% me%4'- "'t'+-, p'' pr#,e, ,e+'%4*t%&'.

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4.#.# K$nd&%&Hea$ *hangerdan eed Ga%

Per*b''% ;',' )', me%4'- "#%e%,'t ter4'- "'re%' ''%&' "#%t'"

t-'" +'%),*%) '%t'r' me-' pe%-%)-% '% feed gas - '+'m heatexchanger8 ,e-%))' feed gas me%)'+'m- pe%*r*%'% temper't*r.

Perm','+''% &'%) ter4'- - +'p'%)'% --%-"',-"'% "'re%' ''%&' "#r#,-

p'' m'ter-'+ tube'% te"'%'% pe%)#per',-'% &'%) t-'" ,e,*'-.

B-+' -+-'t 'r- MDR ("anufacture %esign eport$8 MA6P

("aximum Allo&able )orking Pressure$ 'r- #per',-#%'+ heat exchanger

&'-t* 2< b'r (H :00 p,-)$8 ,e'%)"'% pe%)#per',-'% '"t*'+ ,ebe,'r H ::0

p,-). D'+'m me%e,'-% ,*'t* *%-t8 ter'p'tsafety factor1.2 1.: "'+- 'r-MA6P8 &'%) mer*p'"'% design pressure 'r- *%-t ter,eb*t. Me,"-p*%

em-"-'%8 pe%)#per',-'% '"t*'+ ,e'r*,%&' t-'" me+eb-- MA6P 'r-

*%-t "'re%' *%-t ber#per',- me+eb-- "em'mp*'% &'%) --4-%"'% ,e'r'

ter*, me%er*, '"'% me%)'"-b't"'% "er*,'"'% '% memperpe%e" life time

'r- *%-t. B-+' "eb*t*'% pe%)#per',-'% ,''t -%- ,*' t-'" ,e,*'- e%)'%

,pe,-;-"',- p+'%t8 m'"' ,e'r*,%&' -+'"*"'% ree,-)% *%t*"

me%&e,*'-"'% '%t'r' ,pe,-;-"',- *%-t '% "eb*t*'% #per',-.

B-+' "-t' t-%4'* 'r- "#%t'" '%t'r' me-' (chilled &ater'%feed gas$

'% m'ter-'+ t*be ('rb#% ,tee+$8 b-,' ter4'- re'",- "-m-' &'%)

me%&eb'b"'% "#r#,- p'' m'ter-'+. U%t*" me%)et'*- re'",- &'%) ter4'-8

"-t' 'r*, me%)et'*- "'%*%)'% p'' me-'%&'. K#r#,- +#)'m &'%)

terbe%t*" ,e'r' ter*, me%er*, - '+'m heat exchanger '"'%

me%)'"-b't"'% "eb##r'% p'' tube. B-,' -+-'t 'r- Ga>ar 4.4 -

b'7' -%- "#%-,- m'ter-'+ eC-,t-%) heat exchanger.

!amb r. #ondisi Ma$erial is$ing Hea$ *hanger %ondensa$e Plan$

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K#%-,- b##r%&' tube heat exchanger8 me%)'"-b't"'% condensate

plantt-'" 'p't ber#per',-. U%t*" me%)et'*-8 ber'p' be,'r%&' "#r#,-

&'%) ter4'- p'' tube heat exchanger8 "-t' +'"*"'% pe%)*4-'% ber*p'

E& *rre%t. Te,t E& *rre%t (Apr-+ 201:$ -+'"*"'% *%t*"

me%)et'*- "eteb'+'% tube heat exchangere",-,t-%) '% metal loss'"-b't

"#r#,- &'%) ter4'- p'' m'ter-'+ tube (carbon steel$8 -m'%' metal loss

p'' tube heat exchanger #%e%,'te P+'%t 2 ,ebe,'r 20. A'p*%

per-t*%)'% corrosion rate'% remaining life&'%) ,e,*'- e%)'% "#%-,-

+'p'%)'% ,''t -%- ,eb')'- ber-"*t.

Corrosion Rate= TpreviousTactua

!ear now!ear previous=

(2.111.688 ) mm

20142011=0.563mm/year

.................................................................................................................................................................

(:.2$

Remaining "ife=TactuaTre#uired

Corrosion Rate =

(1.6881.2)mm0.563

=0.87 tahun=10buan

.................................................................................................................................................................

(:.3$

Keter'%)'%

#rr#,-#% R'te +'4* "#r#,- &'%) ter4'- (mm&e'r$Tpre-#*, "eteb'+'% '7'+8 ,e,*'- e,-)% (mm$

T't*'+ "eteb'+'% '"t*'+ r't'8 -m'%' met'+ +#,, H 20 (mm$

TreG*-re "eteb'+'% m-%-m'+ &'%) --4-%"'% *%t*" ber#per',-8 ber','r"'%

ANSIAPI St'%'r !!0 ISO 1!12 (mm$

4.4 Anal&%a K$rek%&

D'r- pemb'','% ,ebe+*m%&'8 ter+-'t perm','+''% &'%) ter4'-

p'' cooling system (heat exchanger '% chiller$ be,ert' '%'+-,'

pe%&eb'b8 -m'%' ,e'r' )'r-, be,'r8 pe%&eb'b re%'%&' performance

cooling system&'-t* pe%)#per',-'% &'%) be+*m ,e,*'- e%)'% ,pe,-;-"',-

'% ter4'-%&' "#r#,- '"-b't re'",- '%t'r' me-' '% m'ter-'+ *%-t.

Ber','r"'% ;'"t' ter,eb*t8 e'+*',- *4- "e+'&'"'% '% perb'-"'% ter''p

"*'+-t', cooling system&'%) ,e+'m' -%- -)*%'"'% 'r*, -+'"*"'%.Beber'p' ,#+*,- 'p't -'mb-+ *%t*" me%)'t',- perm','+''% &'%)

ter4'- p'' cooling system8 ,eb')'- ber-"*t.

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1. Ke,e,*'-'% '%t'r' #per',-#%'+ e%)'% "'p',-t', p+'%t '% ,pe,-;-"',-

*%-t.2. D-+'"*"'%%&' ,e*+e preventive maintenance '% predictive

maintenance.3. B-+' "eb*t*'% #per',- ,*' t-'" ,e,*'- e%)'% ,pe,-;-"',-8

-+'"*"'% ree,-)%8 ,epert- re"#me%',- pe%))'%t-'% m'ter-'+ heat

exchanger ,e,*'- e%)'% "'+"*+',- "eb*t*'% #per',- ,''t -%- '%

#pt-m',- "-%er4' chilling system.S#+*,-,#+*,- - 't', 'p't me%)'t',- perm','+''% &'%) te+' -4'b'r"'%

,ebe+*m%&'8 ,e-%))' 'p't me%)*r'%)- ,*t#7% t-me *%-t cooling

system condensate plant2.

4.8 Alternat&: Pe>e=ahan Ma%alah4.8.1 Standard O5era%& Pr$%edur %eaga& Panduan Peng$5era%&an

D'+'m pe%*+-,'% KK6 -%-8 pe%*+-, memb*'t SOP (St'%'r Oper',-

Pr#,e*r$ #%e%,'te P+'%t 2 'r- ,e)- #per',-#%'+ '% peme+-'r''%. SOP

-%- -,e,*'-"'% p'' "#%-,- '"t*'+8 ,pe,-;-"',- *%-t8 '% "'p',-t', p+'%t

,''t -%-8 -m'%' - '+'m%&' '' p'%*'% scheduled maintenance '%

beber'p' t''p'% pe%'%)'%'% b-+' ter4'-%&' trouble. SOP -%- -4'-"'%

,eb')'- p'%*'% t''p '7'+8 ,ebe+*m%&' be+*m '' SOP *%t*"

pe%)#per',-'% '% peme+-'r''% #%e%,'te P+'%t 28 &'%) b-,' -4'-"'%pe%)'4*'% "e '+'m TKO "e ep'%%&'.

4.8.2 Alternat&: Pe>e=ahan Ma%alah 5ada !eat E


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A'p*% ,pe,-;-"',- m'ter-'+ e",-,t-%) '% be,'r%&' e't tr'%,;er

me%))*%'"'% m'ter-'+ e",-,t-%)8 ber-"*t -%-.Tael 4.8 S5e%&:&ka%& dan K$>5$%&%& Mater&al E5$%&%& Mater&al Rek$>enda%& Penggant& Mater&al Eal $ndu=t&&t'

(Btu+hr.:t.) (?+>.K)

1 SA213 T11 23.! :0.>0


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U%t*" me%)et'*- per-t*%)'% e't tr'%,;er '% e,'-% &'%) '"'%

me%4'- re"#me%',- pe%))'%t-'% m'ter-'+ tube heat exchanger8

me%))*%'"'% 5eru>u%an 4.4ber-"*t -%- per-t*%)'%%&'

Me%))*%'"'% m'ter-'+ SA213 T11

$o /$iln()

#=2%&"(Ti)

................................................................................................................

(:.:$0,01905/0,0174

ln()=683236'att

#=2% x40,90 '

m( )x 5,831m x40)

Re%'%' perb'-"'% e,'-% J*m+' t*be e't eC'%)er (%$ 1 t*be,8 ,e-%))' be,'r G t#t 183 C

106'tt.D'+'m me%e%t*"'% pe%))*%''% m'ter-'+ &'%) terb'-" *%t*" "#%-,-

pe%)#per',-'% ,''t -%- 'r*, me%-%4'* 'r- beber'p' e+eme%8 ,epert-

"'%*%)'% r#m-*m ,eb')'- pe+-%*%) m'ter-'+ 'r- "'r't"#r#,-

'% %-+'- thermal conductivity m'ter-'+ &'%) mempe%)'r*- e't

tr'%,;er. Ber-"*t perb'%-%)'% '%t'r' "#%-,- m'ter-'+ eC-,t-%) '%

re%'%' m'ter-'+ re"#me%',-.

Tael 4.0 Perand&ngan K$nd&%& Mater&al Eenda%&

Ber-"*t -%- per-t*%)'% life timee,'-% (ber','r"'% ASME ?III1 200 (h&ller)Ber','r"'% ,tr*"t*r "#r#,- &'%) ter4'- p'' m'ter-'+8 --%-"',-"'%

"#r#,- #",-',- &'%) berper'% be,'r p'' perm','+''% - 't',. O",-',-

ter4'- - '+'m chilling system8 ,e-%))' 'r*, -m-%-m'+-,-r ter4'-%&'

#",-',- &'%) m',*" "e '+'m ,-,tem. D- ,'mp-%) -t*8 '+'m

pe%)#per',-'%8 ,e'r' "#%,-,te% '-r &'%) -)*%'"'% ,e'r*,%&' em-%

7'ter &'%) ,*' ter*4- "*'+-t',%&' (TDS 'r*, 0$ ')'r "em*%)"-%'%

ter4'-%&' re'",- "-m-'.

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!ambar .8 9en$ing !l*ol S$orage (Sumber : P&5 %ooling Ss$em %P 2

D-+-'t 'r- Ga>ar 4.8 - 't',8 ter'p't venting p'' t'%)"- )++8

-%-"',- m',*"%&' *'r' 'r- e",ter%'+ m',*" "e '+'m t'%)"-8 ,e-%))'

O2m',*" '% ter4'- #",-',-. U%t*" mem-%-m'+-,-r #",-',- - '+'m

t'%)"- b-,' -+'"*"'% e%)'% '+ter%'t-; ber-"*t1. -entingp''glycol storage--+'%)"'%8 -)'%t- e%)'% pem','%)'%

breather valve8 ,e-%))' mem-%-m'+-,-r *'r' 'r- +*'r m',*" "e

t'%)"-.2. M#%-t#r '% -'t*r lo& level '-r'% (!0 'r- #+*me t'%)"-$8

,e-%))' t'%)"- t-'" me%)'+'m- '**m '% r*'%) *'r' - '+'m

t'%)"- m-%-m.3. Set-'p pr#,e, +e'%-%)8 --%4e",-"'% N-tr#)e% "e '-r'% pe%-%)-%

'+'m t'%)"-8 ,e-%))' O",-)e% &'%) m',- ter4eb'" '+'m t'%)"- b-,'

"e+*'r (-b*"'%&' valve$.

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BAB *

PENUTUP

8.1 Ke%&>5ulan

Ber','r"'% '%'+-,-, &'%) -+'"*"'% p'' ,t*- -%-8 m'"' -,-mp*+"'%b'7'1. Performance"-%er4' Chiller(cooling system$ Condensate Plant2 m',-

re%'8 &'-t* -++er A :5811 '% -++er B 1811.2. Perm','+''% &'%) ter4'- p'' Cooling System Condensate Plant 2

&'-t* b##r%&' tube evaporator me%&eb'b"'% compressor chiller t-'"

b-,' ber#per',- '% b##r%&' t*be e't eC'%)er -%))' me%&eb'b"'%

condensate plant2 trip.3. Perm','+''% p'' *%-t chiller-'"-b't"'% #+e ter4'-%&' #",-',- -

'+'m t'%)"- glycol -%))' me%&eb'b"'% "#r#,- '% e;e" re'",-

"'%*%)'% me-' pe%-%)-% (glycol '% demin &ater$ ter''p m'ter-'+.:. Perm','+''% b##r%&' tube heat exchanger-'"-b't"'% "'re%' "#r#,-

p'' m'ter-'+ (carbon steel$ &'%) ber','+ 'r- e;e" re'",- me-'

pe%-%)-% (-++er$ '% "'%*%)'% /2S p''feed gas &'%) t-%))- (100

ppm$.

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5. Corrosion ate &'%) ter4'- p'' tube heat exchanger ,ebe,'r 085!3

mmt'*% '% remaining life tube heat exchanger '+'m "#%-,-

pe%)#per',-'% '"t*'+ &'-t* 10 b*+'%.

!. Pe%))'%t-'% m'ter-'+ tube heat exchanger'% mem-%-m'+-,-r ter4'-%&'#",-',- - '+'m chilling system mer*p'"'% '+ter%'t-; peme''%

m','+' &'%) ter4'-.

8.2 Rek$>enda%&

D'r- pemb'','% 't''t' &'%) -per#+e '% '%'+-,-, &'%) -+'"*"'% p''

,t*- -%-8 m'"' -'4*"'% beber'p' re"#me%',- - b'7' -%-

1. Per+*%&' SOP Pe%)#per',-'% '% Peme+-'r''% ,eb')'- ','r '+'m

#per',-#%'+ p+'%t '% m',-%)m',-%) *%-t8 ,ert'scheduled maintenance

*%t*" me%)-%'r- ter4'-%&' trouble.2. Pe%))'%t-'% m'ter-'+ heat exchanger ,e,*'- e%)'% per-t*%)'%

"eb*t*'% #per',- '"t*'+8 -m'%' m'ter-'+ re"#me%',- ber*p' SA21#

T11 &'%) mem-+-"- "'%*%)'% r +eb- b')*, '% %-+'- heat transfer

&'%) ,e,*'-.3. Per+*%&' perb'-"'% ter''p cooling system *%t*" mem-%-m'+-,-r

ter4'-%&' #",-',-8 &'-t* e%)'% mem#-;-"',- -%))' ,-,tem ter,eb*t

me%e"'t- closed system.

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,ATAR PUSTAKA

J#%e,8 D. A. (1>>2$.Priciples and Prevention of Corrosion+Ne7 V#r"

M'm-++'% I%.

ttp777.''em-'.e*101

penyebab dan penanggulangan korosi pipa cup heat

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