1) Data Aktual Februari 2015 ( Senin, 23 Februari 2015)a. Neraca Massa Pada High Pressure Scrubber

DeminWaterFeed GasOutlet GasOutlet Liquid

HPSCRUBBERG1

G2L1

L2

Basis : 1 Jam OperasiNeraca Massa Total : G1 + L1 = G2 + L2Flowrate :Feed Gas (FI-210-1) = 22400 Nm3/hr = 1000 Kmol/hrDemin Water (FI-211-1A/1B)= 2449 Kg/hr1. Menghitung Gas UmpanTabel 10. Fraksi Mol Gas UmpanKomponen%molFraksi MolFlowrate

NH32.110.021121

Ar2.590.025926

N222.960.2296230

CH45.490.054955

H266.850.6685669

Total10011000

Tabel 11. Perhitungan Gas Umpan MasukKomponenFlowrateBMMassa

Kmol/hrKg/kmolKg

NH32117357

Ar2639.951038.7

N2230286440

CH45516880

H266921338

Total100010053.7

2. Menghitung Liquid UmpanAliran umpan masuk`= 2182 Kg/hrTabel 12. Fraksi Mol Liquid UmpanKomponen% molBMMassa

%Kg/kmolKg

NH38 ppm171.36x10-6

H2O99.9921817.9998

Total10017.9998

BM desain = 18.02 kg/kmol

Aliran Liquid UmpanAliran umpan demin masuk= 2182 kg/hr=

Tabel 13. Perhitungan Liquid MasukKomponenFlowrateBMMassa

Kmol/hrKg/kmolKg

NH39.67x10-6170.000164

H2O121.2210182181.9793

Total121.22352182

3. Menghitung Outlet GasFlowrate :G2 = Ftail gas + FLP Scrubber Ovhd + FH2 LP Product + FH2 HP ProductG2 = (9222+772+6076+5952) Nm3/hr G2 = 22022 Nm3/hr = 983.125kmol/hr Tabel 14. Fraksi Mol Outlet GasKomponen%molFraksi MolFlowrate

NH3NILNILNIL

Ar2.580.025825.3646

N222.960.2296225.7255

CH46.820.068267.0491

H267.640.6764664.9857

Total1001983.125

Tabel 15. Perhitungan Outlet GasKomponenFlowrateBMMassa

Kmol/hrKg/kmolKg

NH3NIL17NIL

Ar25.364639.951013.3157

N2225.7255286320.314

CH467.0491161072.7856

H2664.985721329.9714

Total983.1259736.3867

4. Menghitung Outlet LiquidFlowrate :L2 = (G1 + L1) G2L2 = (1000+121.2235) kmol/hr 983.125 kmol/hr = 138.0985 kmol/hrTabel 16. Fraksi Mol Outlet LiquidKomponen%molFraksi MolFlowrate

NH315.200.152020.9909

Ar0.460.00460.6354

N23.090.03094.2672

H22.900.02904.0048

H2O82.350.8235113.7241

Total1001138.0985

Tabel 17. Perhitungan Outlet LiquidKomponenFlowrateBMMassa

Kmol/hrKg/kmolKg

NH320.99099817357.9989

Ar0.635439.9525.3842

N24.267228119.4816

H24.004828.0096

H2O113.7241182047.0338

Total138.09852557.9081

5. Menghitung Neraca Massa HP ScrubberKomponenInletOutlet

Feed GasGas OutletLiquid Outlet

Kmol/hrKg/hrKmol/hrKg/hrKmol/hrKg/hr

NH321.00000967357.9989NILNIL20.990998357.9989

Ar261038.725.36461013.31570.635425.3842

N22306440225.72556320.3144.2672119.4816

CH45588067.04911072.7856--

H26691338664.98571329.97144.00488.0096

H2O122.22102199.978--113.72412047.0338

Total12235.712235.6948

Aliran yang masuk ke Ammonia StripperKomponenAqua NH3 to NH3 Stripper

HP AquaLP Aqua

Kmol/hrKg/hrKmol/hrKg/hr

NH320.990998357.998925.1596427.7132

Ar0.635425.3842--

N24.2672119.4816--

H24.00488.0096--

H2O113.72412047.0338142.57142566.2852

Total138.09852557.9081167.73112994

2) Data Aktual Maret 2015 ( Senin, 23 Maret 2015)b. Neraca Massa Pada High Pressure Scrubber

DeminWaterFeed GasOutlet GasOutlet Liquid

HPSCRUBBERG1

G2L1

L2

Basis : 1 Jam OperasiNeraca Massa Total : G1 + L1 = G2 + L2Flowrate :Feed Gas (FI-210-1) = 21816 Nm3/hr = 973.9285 Kmol/hrDemin Water (FI-211-1A/1B)= 2436 Kg/hr1. Menghitung Gas UmpanTabel 10. Fraksi Mol Gas UmpanKomponen%molFraksi MolFlowrate

NH32.150.021520.9394

Ar2.330.023322.6925

N223.600.2360229.8471

CH45.050.050549.1833

H266.870.6687651.2659

Total1001973.9285

Tabel 11. Perhitungan Gas Umpan MasukKomponenFlowrateBMMassa

Kmol/hrKg/kmolKg

NH320.939417355.9698

Ar22.692539.95906.5653

N2229.8471286435.7188

CH449.183316786.9328

H2651.265921302.5318

Total973.92859787.7285

2. Menghitung Liquid UmpanAliran umpan masuk`= 2436 Kg/hrTabel 12. Fraksi Mol Liquid UmpanKomponen% molBMMassa

%Kg/kmolKg

NH35.7 ppm179.69x10-5

H2O99.9991817.99982

Total10017.99991

BM desain = 18.02 kg/kmol Aliran Liquid UmpanAliran umpan demin masuk= 2436 kg/hr=

Tabel 13. Perhitungan Liquid MasukKomponenFlowrateBMMassa

Kmol/hrKg/kmolKg

NH30.00077170.01309

H2O135.3218182435.7924

Total135.334012435.80549

3. Menghitung Outlet GasFlowrate :G2 = Ftail gas + FLP Scrubber Ovhd + FH2 LP Product + FH2 HP ProductG2 = (8176+249+5471+7490) Nm3/hr G2 = 21386 Nm3/hr = 954.7321 kmol/hr Tabel 14. Fraksi Mol Outlet GasKomponen%molFraksi MolFlowrate

NH3NILNILNIL

Ar2.450.024523.3909

N223.480.2348224.1711

CH46.340.063460.53

H267.730.6773646.64

Total1001954.7321

Tabel 15. Perhitungan Outlet GasKomponenFlowrateBMMassa

Kmol/hrKg/kmolKg

NH3NIL17NIL

Ar23.390939.95934.4664

N2224.1711286276.7908

CH460.5316968.48

H2646.6421293.28

Total954.73219473.0172

4. Menghitung Outlet LiquidFlowrate :L2 = (G1 + L1) G2L2 = (973.9285+135.33401) kmol/hr 954.7321kmol/hr = 154.5304 kmol/hrTabel 16. Fraksi Mol Outlet LiquidKomponen%molFraksi MolFlowrate

NH313.55080.13550820.9401

N23.6730.036735.6759

H22.99350.0299354.6258

H2O87.570.8757135.3222

Total1001154.5304

Tabel 17. Perhitungan Outlet LiquidKomponenFlowrateBMMassa

Kmol/hrKg/kmolKg

NH320.940117355.9868

N25.675928158.9252

H24.625829.2516

H2O135.3222182435.7996

Total154.53042959.9632

5. Menghitung Neraca Massa HP ScrubberKomponenInletOutlet

Feed GasGas OutletLiquid Outlet

Kmol/hrKg/hrKmol/hrKg/hrKmol/hrKg/hr

NH320.94017355.98289--20.9401355.9868

Ar22.6925906.565323.3909934.4664--

N2229.84716435.7188224.17116276.79085.6759158.9252

CH449.1833786.932860.53968.48--

H2651.26591302.5318646.641293.284.62589.2516

H2O135.32182435.7924-135.32222435.7996

Total12225.5339912225.52399

Aliran yang masuk ke Ammonia StripperKomponenAqua NH3 to NH3 Stripper

HP AquaLP Aqua

Kmol/hrKg/hrKmol/hrKg/hr

NH320.9401355.986814.4685258.625

N25.6759158.9252--

H24.62589.2516--

H2O135.32222435.7996101.27961810.375

Total154.53042959.9632115.74822069