Evaluasi Absorber

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EVALUASI KOLOM ABSORBER V-0201 DI ACID GAS REMOVAL UNIT CPP GUNDIH GERALDI RAHANRA

TUJUAN

BAB 1 PENDAHULUAN LATAR BELAKANG

GAS BUMI • HIDROKARBON • KONTAMINAN

CPP GUNDI H • AGRU • EVALUASI KOLOM ABSORBER

PLTGU



MELIHAT KONDISI OPERASI



MENGEVALUASI KINERJA KOLOM ABSORBER

BATASAN MASALAH •

JUMLAH ACID GAS PADA TIAP STREAM



PERSEN FLOODING



PRESSURE DROP



LOADING CAPACITY

BAB 2 – ORIENTASI UMUM 50 MMSCFD dari 2014

PLTGU Tambak Lorok

Control Building Workshop WAO Building MSPP SSO Utilities Laboratorium

CPP Gundih

KDL 01 KTB 01,02,03,04,06 RBT 01,02,03

40% AREA PROSES

GS U BSR U

AGR U

CT U

DH U

Sales Gas & Custody Metering

CHU

BAB 3 – DASAR TEORI •

Proses Absorpsi (Gas Purification – Arthur Kohl)

Abosrpsi ialah proses dimana satu atau lebih komponen yang terdapat didalam fase gas ditransfer (diabsorp) kedalam sebuah cairan solvent

packing

tray

Treated gas foamin g

Lean solvent (loading capacity)

dP Feed gas

floodin g

Rich solvent

BAB 4

FEED GAS ABSORBER V0201 Kompone n CH4 C 2 H6 C 3 H8 nC4H10 iC4H10 nC5H12 iC5H12 C6+ H2 S CO2 H2 O Total

y

%wt

0,7451 52,1018 0,0221 2,8907 0,0081 1,5637 0,0021 0,5382 0,0016 0,4049 0,0006 0,1925 0,0008 0,2430 0,0025 0,9445 0,0040 0,5887 0,2100 40,2889 0,0031 0,2430 1

100

BM

y.BM

Massa Volume Mol (kg/jam) (Nm3/jam) (kgmol/jam)

16,04 11,9519 35269,72 30,07 0,6631 1956,86 44,09 0,3587 1058,53 58,12 0,1235 364,32 58,12 0,0929 274,09 72,15 0,0442 130,34 72,15 0,0557 164,48 86,17 0,2167 639,40 34,10 0,1350 398,49 44,01 9,2421 27273,12 18,00 0,0557 164,49

49254,47 1457,82 537,74 140,41 105,64 40,47 51,07 166,21 261,76 13881,34 204,69

2198,8605 65,0811 24,0062 6,2685 4,7159 1,8066 2,2799 7,4201 11,6858 619,7028 9,1381

  22,9396 67693,84

66101,63

2950,655

LEAN SOLVENT Komposisi

%wt

MDEA

45,188 0,11083 0 0

119,1 6 131507,14

1103,62

H2O

54,808 0,88914 5 6

18,02 159504,79

8853,86

CO2

0,00002 0,0034 3

44,01

9,89

0,22

H2S

0,00000 0,0002 1

34,08

0,44

0,01

  291011,94

9957,72

Total

100

y

Mol Massa (kgmol/jam (kg/jam) )

BM

1

TREATED GAS Komposis i

y

%wt

BM

y.BM

Massa (kg/jam)

Mol (kgmol/jam)

CH4

0,943

88,14 16,04

15,1235

35257,26

2198,0835

C 2 H6

0,027

4,77 30,07

0,8187

1908,705

63,4796

C 3 H8

0,009

2,46 44,09

0,4223

984,5658

22,3288

nC4H10

0,002

0,80 58,12

0,1365

318,1982

5,4748

iC4H10

0,002

0,68 58,12

0,1163

271,1963

4,6661

nC5H12

0,001

0,30 72,15

0,0509

118,7547

1,6460

3 x 10-5

0,01 72,15

0,0020

4,698555

0,0651

0,003

1,57 86,17

0,2701

629,6549

7,3070

H2 S

6 x 10-8 1 x 10-5 34,10 2,046E-06

0,00477

1 x 10-4

CO2

9 x 10-6 2 x 10-3 44,01

0,0004

0,933658

0,0212

0,2181

508,3725

28,2116

17,1589

40002,34

2331,28

iC5H12 C6+

H2 O Total

0,012 1

1,27 18,02 100  

RICH SOLVENT Komposisi CH4 C 2 H6 C 3 H8 nC4H10 iC4H10 nC5H12 iC5H12 C6+ H2 S CO2 H2 O MDEA Total

Y 0,000073 0,000151 0,000159 0,000075 0,000005 0,000015 0,000209 0,000011 0,001106 0,058607 0,835251 0,104337 1

%wt

BM

0,0039 16,04 0,0151 30,07 0,0232 44,09 0,0145 58,12 0,0009 58,12 0,0036 72,15 0,0501 72,15 0,0031 86,17 0,1251 34,10 8,5589 44,01 49,9451 18,02 41,2564 119,16 100  

y.BM

Massa (kg/jam)

0,0012 0,0046 0,0070 0,0044 0,0003 0,0011 0,0151 0,0009 0,0377 2,5793 15,0512 12,4328 30,1356

12,46 48,15 73,96 46,13 2,89 11,59 159,78 9,75 398,92 27282,08 159202,88 131507,14 318755,74

Mol (kgmol/jam) 0,7769 1,6015 1,6774 0,7936 0,0498 0,1606 2,2147 0,1131 11,6985 619,9064 8834,7881 1103,6182 10577,3989

dP = 0,48 in H20/ft of packing Batasan 0,25 – 0,5 in H20/ft of packing 47,4% flooding

LOADING CAPACITY H2S Parameter Loading Capacity H2S dalam feed H2S dalam treated gas Penyerapan H 2S Amine Strength Tekanan Operasi Temperature Operasi

CO2 Satuan Mol H2S/mol solvent

Aktual

Desain

0,0012

0,0015

kgmol/jam

11,69

19,44

kgmol/jam % mol

0,0001 0,000006

2,7815 0,0952

%

99,9

85,7

% wt

45,188

48,16

psia

403,74

406,7

37,638

42,2

C

o

Parameter

Satuan

Aktual

Desain

Loading Capacity CO2 dalam feed

Mol H2S/mol solvent

0,062

0,064

kmol/jam

619,70

806,60

CO2 dalam treated gas

kmol/jam

0,02

0,02

% mol

0,0009

0,0008

%

99,9

99,9

%wt

45,188

48,16

psia

403,74

406,7

37,638

42,2

Penyerapan CO2 Amine Strength Tekanan Operasi Temperature Operasi

C

o

H2S = 6x10⁻⁶ %mol VS 0,0952 %mol



△P = 0,48 in H2O/ft of packing

CO2 = 0,0009 %mol VS 0,0008 %mol



%flooding = 47,4 %



Loading capacity H2S = 0,0012 mol H2S/mol solvent



Loading Capacity CO2 = 0,062 mol CO2/mol solvent

SARAN H2S = 11,6858 kgmol/jam

H2S = 11,6857 kgmol/jam

CO2 = 619,7028 kgmol/jam

CO2 = 619,6815 kgmol/jam

AMINE STRENGTH 45% VS 48%

SEKIAN & TERIMAKASIH

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