258770993 Pp Metanol Dari Batubara Dengan Proses Gasifikasi Kapasitas 500 000 Ton Per Tahun Pdf

LAMPIRAN A NERACA MASSA Pabrik acetylene dengan bahan baku gas alam direncanakan dengan kapasitas 4.000 ton/tahun. Dalam perhitungan neraca massa ini berdasarkan aliran-aliran komponen masuk dan keluar alat. Komponen yang terlibat di dalam proses pembuatan dan pemurnian acetylene, diantaranya: No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

Komponen Methana Ethana Propana Karbon Dioksida Nitrogen Ethylene Aceatylene Biacetylene Hidrogen Air

Rumus Kimia CH4 C2H6 C3H8 CO2 N2 C2H4 C2H2 C4H2 H2 H2O

Berat Molekul 16,04 30,07 44,10 44,01 28,01 28,05 26,04 50,06 2,02 18,02

Bahan baku gas alam yang diperoleh dari PT Exterran Indonesia memiliki komposisi: No. 1. 2. 3.

Methana Ethana Propana

Komponen

Komposisi (%W) 85 9.02 0.60

4.

Butana*

< 0.001

5. Karbon Dioksida 6. Nitrogen Keterangan : * sangat kecil (dapat diabaikan)

3.67 1.14

Skema perhitungan neraca massa digambarkan pada blok diagram berikut: 1

Mixer

2

Reaktor

3

Quencher 10

4

Flash Drum 1

Spliter

5

8

Adsorber 6

7

Flash Drum 2

9

A-1

Komponen yang terdapat dalam tiap arus, yaitu: Aliran 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Komponen CH4, C2H6, C3H8, CO2, N2 CH4, C2H6, C3H8, CO2, N2, CO2, N2, C2H4, C2H2, H2 CH4, C2H6, C3H8, CO2, N2, CO2, N2, C2H4, C2H2, H2 CH4, C3H8, CO2, N2, C2H4, C2H2, C4H2, H2 H2O H2O CH4, C2H6, C3H8, CO2, N2, C2H4, C2H2, C4H2, H2, H2O H2O, CO2 H2O, CO2 H2O, CO2 CH4, C3H8, CO2, N2, C2H4, C2H2, C4H2, H2 C3H8, CO2, C4H2 CH4, CO2, N2, C2H4, C2H2, H2 C2H2, CH4, CO2, C2H4 CH4, C2H6, CO2, N2, C2H4, C2H2, H2 CH4, C2H6, CO2, N2, C2H4, C2H2, H2 CH4, C2H6, CO2, N2, C2H4, C2H2, H2

A-2

Neraca Massa Tiap Alat: 1. Mix Tank

: Aliran2 = Aliran1 + Aliran17

2. Reaktor

: Aliran2 = Aliran3 = Aliran4

3. Quencher

: - Aliran7 = Aliran4 + Aliran10 – Aliran6 - Aliran9 = Aliran6 + Aliran8 - Aliran10 = Aliran5 + Aliran9

4. Flash Drum 1: Aliran11 = Aliran7 – Aliran8 5. Adsorber

: Aliran13 = Aliran11 – Aliran12

6. Flash Drum 2: Aliran15 = Aliran13 – Aliran14 7. Recycle

: Aliran17 = Aliran15 – Aliran16

Neraca Massa Total: Aliran1 + Aliran17 = Aliran2 = Aliran3 = Aliran4 = Aliran11 = (Aliran12 + Aliran14 + Aliran15) Mekanisme reaksi dehidrogenasi acetylene yaitu : 1. Reaksi Pembentukan Acetylene:  CH4 → C2H6 + H2 (Konversi 70% - Kirk Othmer, hlm. 186)  C2H6 → C2H4 + H2 (Konversi 100% - Kirk Othmer, hlm. 186)  C2H4 → C2H2 + H2 (Konversi 90% - Kirk Othmer, hlm. 186) 2. Reaksi Lanjutan Acetylene:  2C2H2 → C4H2 + H2 (Di asumsikan 2% produk berubah menjadi Biacetylene) 3. Reaksi Dehidrogenasi Propana:  C3H8 → C2H2 + CH4 + H2 (Konversi 55% - Kirk Othmer, hlm. 186) Untuk mendapatkan acetylene dengan kemurnian 99% sebanyak 4000 ton/tahun dengan asumsi 1 tahun (330 hari) = 7920 jam operasi, maka:

Kapasitas Produksi perjam

=

= 505,05 Kg/Jam

A-3

PERHITUNGAN NERACA MASSA

Komponen Pada Fresh Feed No. 1. 2. 3. 5. 6.

Komponen Methana Ethana Propana Karbon Dioksida Nitrogen

Mol

Komposisi

Mr

(Jika Basis = 1 Kg)

16,04 30,07 44,10 44,01 28,01

Kgmol 0,053 0,003 0,0001 0,0008 0,0004

(%W) 85 9,02 0,60 3,67 1,14

Penentuan Jumlah Recycle Recycle : Waste = 0,7 : 0,3 (US Patent No . 3,093,697) Untuk Basis = 1 Kmol Fresh Feed Jumlah Methana di Recycle = 0,7 × (30% Mol Methana Fresh feed) = 0,7 × (30% × 0,053) = 0,0111 Kgmol = 0,1871 Kg Jadi, Methana fresh Feed : Recycle = 0,85 : 0,1871

Penentuan Basis (Jumlah Fresh Feed) Untuk mendapatkan Produk Acetylene sebanyak 4000 ton/tahun atau sama dengan 505,05 Kg/Jam, maka: Methana fresh feed = 100/70 × 505,05 Kg = 791,50 Kg 85% Fresh feed = 791, 50 Kg, maka : Fresh Feed = 100/85 × 791, 50 Kg = 925,8 Kg/Jam 1.

Neraca Massa pada Mix Tank (M-01)

A-4

Fresh Feed CH4, C2H6, C3H8, CO2, N2 (1)

Recycle CH4, CO2, N2, C2H4, C2H2, H2 (17) Mixed Gas CH4, C2H6, C3H8, CO2, N2, CO2, N2, C2H4, C2H2, H2 (2) MIX TANK

Neraca Massa Total

: Aliran2 = Aliran1 + Aliran17

Neraca Komponen a. Methana : Methana2 = Methana1 + Methana17 Methana1 = Komposisi Methana × Jumlah Fresh Feed  = 0,85 × 925,8 = 791,4412 Kg Methana17 = (Methana Recycle : Methana Fresh Feed) × Jumlah Fresh Feed  = (0,1871/0,85) × 925,8 = 211,2983 Kg Methana2 = 791,4412 + 211,2983 = 1.002,7935 Kg  b.

Ethana 

Ethana1

: Ethana2 = Ethana1 = Komposisi Ethana × Jumlah Fresh Feed = 0,0902 × 925,8 = 83,9859 Kg

c.

Propana : Propana2 = Propana1 Propana = Komposisi propana × Jumlah Fresh Feed  1 = 0,0060 × 925,8 = 5,5866 Kg

d.

Karbon Dioksida 





e.

CO2(1)

Dioksida17 = Komposisi CO2 × Jumlah Fresh Feed = 0,0367 × 925,8 = 34,1716 Kg

CO2(17) CO2 adalah zat pengotor yang tidak bereaksi, 95% CO 2 di adsorb didalam adsorber. 30% dari 5% CO2 sisa dibuang, dan 70% nya di recycle. Sisa CO2 = 0,7 × (5% × 34,1716) = 1,0128 Kg CO2(2) = 35,1844 Kg

Nitrogen N2(1)



: Karbon Dioksida2 = Karbon Dioksida1 + Karbon

: Nitrogen2 = Nitrogen1 + Nitrogen17 = Komposisi N2 × Jumlah Fresh Feed = 0,0114 × 925,8

A-5





f.

= 10,6146 Kg N2(17) Nitrogen adalah zat pengotor yang tidak bereaksi. 30% Nitrogen dibuang kedalam waste, dan sisanya terakumulasi didalam sistem. Akumulasi N2 = {2 × [0,7 × (10,6146)]} + 10,6146 = 24,9540 Kg N2(2) = 35,5686 Kg

Ethylene : Ethylene 2 = Ethylene 17 Ethylene = 0,00 Kg  1 Ethylene17  Ethylene adalah hasil dari reaksi ethana. Konversi Ethana menjadi ethylene adalah 100%. Ethylene kemudian bereaksi menghasilkan acetylene dengn konversi 90%. Ethylene dalam recycle adalah sisa dari ethylene yang tidak terkonversi menjadi acethylene. 30% Ethylene sisa dibuang ke Waste, dan



g.

70% masuk kedalam recycle. Ethylene17 = 0,7 × Ethylene terbentuk- Ethylene yang bereaksi = 0,7 × (Ethana Bereaksi - Ethylene Bereaksi) = 0,7 × (1,736 Kgmol - (-0,9094 Kgmol)) = 1,8518 Kgmol = 48,9232 Kg Ethylene2 = 48,9232 Kg

Acetylene : Aceatylene 2 = Aceatylene 17 Ethylene1 = 0,00 Kg Acetylene17 = 0,7 × Acetylene terbentuk- Ethylene yang bereaksi  = 0,7 × (70% mol Methana + 90% Mol Ethylene + 55% Mol 

Propana) - (2% × (70% mol Methana + 90% Mol Ethylene + 55% Mol Propana)) = 0,7 × [(13,3128 + 2,6995 + 0,0698) – (2% × (17,3128 +



h.

2,6995 + 0,0698) = 9,4504 Kgmol = 245,7094 Kg Ethylene2 = 48,9232 Kg

Hidrogen : Hidrogen 2 = Hidrogen 17 Hidrogen  17 Hidrogen adalah hasil Reaksi Termal Cracking (dehidrogenasi). Zat ini terakumulasi didalam sistem. Ratio Mol Fresh Feed (Methana) : Mol Hidrogen dalam sistem = 1 : 5

A-6

Maka: Hidrogen17 = 0,7 × [(791,4112/16) × 5] = 167,4725 Kgmol = 334,9449 Kg

A-7

2.

Neraca Massa pada Reaktor (R-01) Mixed Gas CH4, C2H6, C3H8, CO2, N2, CO2, N2, C2H4, C2H2, H2 (2) = (3) REAKTOR

Product Gas CH4, C3H8, CO2, N2, CO2, N2, C2H4, C2H2, H2 (4)

Neraca Massa Total

: Aliran2 = Aliran3 = Aliran4

Neraca Komponen a. Methana

: Methana4 = Methana Mula-mula + Methana Terbentuk + Methana Bereaksi Methana Mula-mula = Methana2 = Methana3

Methana Terbentuk : C3H8 → C2H2 + CH4 + H2 (Konversi 55% - Kirk Othmer, hlm. 186) Mol Methana = Konversi × σ × Mol Reaktan = 55% × 1 × (Mol Propana3) = 55% × 1 × (Massa Propana3/Mr Propana) = 55% × 1 × (5,5866/44) = 0,06948 mol Massa Methana Terbentuk = mol Methana × Mr Methana = 0,06948 × 16 = 1, 1117 Kg Methana Bereaksi: 2 CH4 → C2H6 + H2 (Konversi 70% - Kirk Othmer, hlm. 186) Mol Methana = Konversi × σ × Mol Reaktan = 70% × σ × (Mol Methana3) = 70% × -2/2 × (Massa Methana3/Mr Metana) = 70% × -1 × (1002,7395/16) = -43,8699 mol Massa Methana Bereaksi = mol Methana × Mr Methana = -43,8699 × 16 = -701,9177 Kg Methana4 = Methana Mula-mula + Methana Terbentuk + Methana Bereaksi = 1002,7395 + 1, 1117 + (-701,9177) = 301,1572 Kg b.

Ethana

: Ethana4 = Ethana Mula-mula + Ethana Terbentuk + Ethana Bereaksi

A-8

Ethana Mula-mula = Ethana2 = Ethana3 Ethana Terbentuk : 2 CH4 → C2H6 + H2 (Konversi 70% - Kirk Othmer, hlm. 186) Mol Ethana = Konversi × σ × Mol Reaktan = 70% × 1/2 × (Mol Methana3 + Mol Methana Terbentuk) = 70% × 1/2 × [(Massa Methana3/Mr Methana) + (55% × 1 × (Mol Propana3))] = 70% × 1/2 × [(1002,7395/16) + (0,06948)]} = 21,9572 mol Massa Ethana Terbentuk = mol Ethana × Mr Ethana = 21,9572 × 30 = 658,7145 Kg Ethana Bereaksi: C2H6 → C2H4 + H2 (Konversi 100% - Kirk Othmer, hlm. 186) Mol Ethana = Konversi × σ × Mol Reaktan = 100% × σ × (Mol Ethana Terbentuk + mol Ethana3) = 100% × σ × {[70% × 1/2 × (Mol Methana3 + Mol Methana Terbentuk)] + (mol Ethana3)} = 100% × -1/1 × {(70% × 1/2 × (Mol Methana3) + [55% × 1 × (Massa Propana3/Mr Propana)] + (Massa Ethana3/Mr Ethana)} = 100% × -1 × + [21,9572 + (83,9859/30)] = -24,7567 mol Massa Ethana Bereaksi = mol Ethana × Mr Ethana = -24,7567 × 30 = -742,7019 Kg Ethana4 = Ethana Mula-mula + Ethana Terbentuk + Ethana Bereaksi = 83,9859 + 658,7145 + (-742,7019) = 0,00 Kg c.

Propana

: Propana4 = Propana Mula-mula + Propana

Terbentuk + Propana Bereaksi Propana Mula-mula = Propana2 = Propana3 Propana Terbentuk : Propana Bereaksi: C3H8 → C2H2 + CH4 + H2 (Konversi 55% - Kirk Othmer, hlm. 186) Mol Propana = Konversi × σ × Mol Reaktan = 55% × -1/1 × (Mol Propana3) = 55% × -1 × (Massa Propana3/Mr Propana) = 55% × -1 × (5,5866/44)

A-9

= -0,06948 mol Massa Propana Bereaksi = mol Propana × Mr Propana = -0,06948 × 44 = -3,0571 Kg Propana4 = Propana Mula-mula + Propana Terbentuk + Propana Bereaksi = 5,5866 + 0,00 + (-3,0571) = 2,5140 Kg d.

Karbon Dioksida

: Karbon Dioksida2 = Karbon Dioksida3 + karbon Dioksida4

e.

Nitrogen

: Nitrogen2 = Nitrogen3 + Nitrogen4

f.

Ethylene

: Ethylen4 = Ethylen Mula-mula + Ethylen Terbentuk + Ethylen Bereaksi Ethylen Mula-mula = Ethylen2 = Ethylen3

Ethylen Terbentuk : C2H6 → C2H4 + H2 (Konversi 100% - Kirk Othmer, hlm. 186) Mol Ethylen = Konversi × σ × Mol Reaktan = 100% × σ × (Mol Ethana Terbentuk + Mol Ethana3) = 100% × σ × {[70% × 1/2 × (Mol Methana3 + Mol Methana Terbentuk)] + (mol Ethana3)} = 100% × 1/1 × {(70% × 1/2 × (Mol Methana3) + [55% × 1 × (Massa Propana3/Mr Propana)] + (Massa Ethana3/Mr Ethana)} = 100% × 1 × + [21,9572 + (83,9859/30)] = 24,7567 mol Massa ethylen terbentuk = mol ethylen × Mr ethylen = 24,7567 × 28 = 693,1876 Kg Ethylen Bereaksi: C2H4 → C2H2 + H2 (Konversi 90% - Kirk Othmer, hlm. 186) Mol Ethylen = Konversi × σ × Mol Reaktan = 90% × σ × (Mol ethylene Terbentuk + Mol Ethylen3) = 90% × σ × {100% × 1 × [(70% × 1/2 × Mol Methana3) + (55% × 1 × Mol Propana3) + (Mol Ethana3)] + (Mol Ethylen3)} = 90% × -1/1 × {{100% × 1 × [(70% × 1/2 × (Massa Ethana3/Mr Ethana)) + (55% × 1 × (Massa Propana3/ Mr

A-10

Propana))]} + [(Massa Ethana3/Mr Ethana)] + [(Massa Ethylen3/Mr Ethylen)]} = 90% × -1 × + [21,9572 + (83,9859/30) + (48,9232/28)] = -23,8536 mol Massa ethylen Bereaksi = mol ethylen × Mr ethylen = -23,8536 × 28 = -667,9005 Kg Ethylen4 = Ethylen Mula-mula + Ethylen Terbentuk + Ethylen Bereaksi = 48,9232 + 693,1876 + (-667,9005) = 74,1675 Kg g.

Acetylene

: Acetylene 4 = Acetylene Mula-mula + Acetylene Terbentuk + Acetylene Bereaksi Acetylene Mula-mula = Acetylene2 = Acetylene3

Acetylene Terbentuk: C2H4 → C2H2 + H2 (Konversi 90% - Kirk Othmer, hlm. 186) C3H8 → C2H2 + CH4 + H2 (Konversi 55% - Kirk Othmer, hlm. 186) Mol Acetylene = Konversi × σ × Mol Reaktan = [90% × σ × (Mol Ethylen Terbentuk + Mol Ethylen3)] + [55% × σ × Mol Propana3)] = [90% × σ × {100% × σ × (Mol Ethana Terbentuk + Mol Ethana3)} + (mol Ethylene3)] + [(55%

× 1 × (Massa

Propana3/ Mr Propana)] = 90% × 1/1 × {{100% × 1 × [70% × 1/2 × (Mol Methana3 + Mol Methana Terbentuk)]} + (Massa Ethylene 3/Mr Ethylene)} + [(55% × 1 × (Massa Propana3/ Mr Propana)] = {90% × 1 × [(21,9572) + (48,9232/28)]} + {55% × 1 × (5,5866/44)} = 25,3568 mol Massa Acetylene terbentuk = mol Acethylen × Mr Acetylene = 25,3568 × 26 = 659,2770 Kg Acetylene Bereaksi: 2C2H2 →

C4H2 + H2

(Di asumsikan 2% produk berubah menjadi Biacetylene) Mol Acetylene = Konversi × σ × Mol Reaktan = 2% × σ × (Mol Acethylene Terbentuk + Mol Acethylene3) = 2% × -2/1 × {{[90% × σ × (Mol Ethylen Terbentuk + Mol

A-11

Ethylen3)] + [55% × σ × Mol Propana3)]} + (Massa Acethylene3/Mr Acethylene)} = 2% × -2 × {{[90% × σ × {100% × σ × (Mol Ethana Terbentuk + Mol Ethana3)} + (mol Ethylene3)] + [(55% × 1 × (Massa Propana3/ Mr Propana)]} +

(Massa

Acethylene3/Mr Acethylene)} = 2% × -2 × {90% × 1 × {{100% × 1 × [70% × 1 × (Mol Methana3 + Mol Methana Terbentuk)]} + (Massa Ethylene3/Mr Ethylene)} + [(55% × 1 × (Massa Propana3/ Mr Propana)]} + (Massa Acethylene3/Mr Acethylene)} = 2% × -2 × {{90% × 1 × [(46,7138) + (48,9232/28)]} + {55% × 1 × (5,5866/44)} + (245,7094/26)} = -2,1254 mol Massa Acetylene Bereaksi = mol acethylen × Mr Acethylen = -2,1254 × 26 = -55,2604 Kg Acethylen4 = Acethylen Mula-mula + Acethylen Terbentuk + Acethylen Bereaksi = 245,7094 + 659,2770 + (-55,2604) = 849,7260Kg h.

Biacetylene

: Biacetylene 4 = Biacetylene Mula-mula + Biacetylene Terbentuk + Biacetylene Bereaksi Biacetylene Mula-mula = Biacetylene2 =

Biacetylene3 Biacethylen Terbentuk: 2C2H2 →

C4H2 + H2

(Di asumsikan 2% produk berubah menjadi Biacetylene) Mol = Konversi × σ × Mol Reaktan Biacetylene = 2% × σ × (Mol Acethylene Terbentuk + Mol Acethylene3) = 2% × 1/2 × {{[90% × σ × (Mol Ethylen Terbentuk + Mol Ethylen3)] + [55% × σ × Mol Propana3)]} + (Massa Acethylene3/Mr Acethylene)} = 2% × 1/2 × {{[90% × σ × {100% × σ × (Mol Ethana Terbentuk + Mol Ethana3)} + (mol Ethylene3)] + [(55% ×

A-12

1 × (Massa Propana3/ Mr Propana)]} +

(Massa

Acethylene3/Mr Acethylene)} = 2% × 1/2 × {90% × 1 × {{100% × 1 × [70% × 1 × (Mol Methana3 + Mol Methana Terbentuk)]} + (Massa Ethylene3/Mr Ethylene)} + [(55% × 1 × (Massa Propana3/ Mr Propana)]} + (Massa Acethylene3/Mr Acethylene)} = 2% × 1/2 × {{90% × 1 × [(21,9572) + (48,9232/28)]} + {55% × 1 × (5,5866/44)} + (245,7094/26)} = 0,3334 mol Massa Biacetylen Terbentuk = mol Biacethylen × Mr Biacethylen = 0,3334 × 50 = 16,6700 Kg Biacethylen Bereaksi: Biacethylen4 = Biacethylen Mula-mula + Biacethylen Terbentuk + Biacethylen Bereaksi = 0,00 + 16,6700 + 0,00 = 16,6700Kg i.

Hidrogen

: Hidrogen4 = Hidrogen Mula-mula + Hidrogen Terbentuk + Hidrogen Bereaksi Hidrogen Mula-mula = Hidrogen 2 = Hidrogen 3

Hidrogen Terbentuk: 2 CH4 →

C2H6 + H2 (Konversi 70% - Kirk Othmer, hlm. 186)

C2H6

→

C2H4 + H2 (Konversi 100% - Kirk Othmer, hlm. 186)

C2H4

→

C2H2 + H2 (Konversi 90% - Kirk Othmer, hlm. 186)

C3H8

→

C2H2 + CH4 + H2 (Konversi 55% - Kirk Othmer, hlm. 186)

2C2H2 →

C4H2 + H2

(Di asumsikan 2% produk berubah menjadi Biacetylene) Mol Hidrogen= (∑Konversi × σ × Mol Reaktan) = {[70% × σ × (Mol Methana3)] + [100% × σ × (Mol Ethana Terbentuk + mol Ethana3)] + [55% × σ × (Mol Propana3)] + [90% × σ × (Mol ethylene Terbentuk + Mol Ethylen3)] +

A-13

[2% × σ × (Mol Acethylene Terbentuk + Mol Acethylene3)] + (Massa Hidrogen3/ Mr Hidrogen) = [(43,8699) + ( 24,7567) + (0,06948) + (23,8536) + (2,1254)] = 71,3573 mol Massa Hidrogen Terbentuk = mol Biacethylen × Mr Biacethylen = 71,3573 × 2 = 142,7145 Kg Hidrogen Bereaksi: Hidrogen4 = Hidrogen Mula-mula + Hidrogen Terbentuk + Hidrogen Bereaksi = 334,9449 + 142,7145 + 0,00 = 477,6593 Kg

3.

Neraca Massa pada Quencher (Q-01)

Product Gas (From Reaktor) CH4, C3H8, CO2, N2, CO2, N2, C2H4, C2H2, H2 (4) Neraca Massa Total

Quencher Spray H2O (10) Gas From Quencher CH4, C3H8, CO2, N2, CO2, N2, C2H4, C2H2, H2, H2O (7) QUENCHER

: Aliran7 =Liquid AliranFrom Quencher 4 + Aliran 10 – Aliran6 H2O (6) A-14

Neraca Komponen a. Methana

: Methana7 = (Methana4 + Methana10) – Methana6 Methana7 = 301,1572 + 0 – 0 = 301,1572 Kg

b.

Ethana

: Ethana7 = (Ethana4 + Ethana10) – Ethana6 Ethana7 = 0 + 0 – 0 = 0,00 Kg

c.

Propana

: Propana7 = (Propana 4 + Propana 10) – Propana 6 Propana7 = 2,5140 + 0 – 0 = 2,5140 Kg

d.

Karbon Dioksida

: Karbon Dioksida7 = (Karbon Dioksida4 + Karbon Dioksida10) - Karbon Dioksida6 Karbon Dioksida7 = 35,1844 + 0 – 0 = 35,1844 Kg : Nitrogen7 = (Nitrogen4 + Nitrogen10) – Nitrogen6 Nitrogen7 = 35,5686 + 0 – 0 = 35,5686 Kg

e.

Nitrogen

f.

Ethylene

: Ethylene7 = (Ethylene4 + Ethylene10) – Ethylene 6 Ethylene7 = 74,1675 + 0 – 0 = 74,1675 Kg

g.

Acetylene

: Acetylene7 = (Acetylene4 + Acetylene10) – Acetylene6 Acetylene7 = 849,7260 + 0 – 0 = 849,7260 Kg

h.

Biacetylene

: Biacetylene7 = (Biacetylene4 + Biacetylene10) – Biacethylene6 Biacetylene11 = 16,6700 +0 – 0 = 16,6700 Kg

i.

Hidrogen

: Hidrogen7 = (Hidrogen4 + Hidrogen10) – Hidrogen6 Hidrogen7 = 477,5693 + 0 – 0 = 477,5693 Kg

j.

H2O

: H2O (7) = (H2O (4) + H2O (10)) – H2O (6) H2O (7) = 0,00 + 300.000 – 299.600 = 400 Kg

A-15

4.

Neraca Massa pada Flash Drum 1 (S-01) Gas From Quencher CH4, C3H8, CO2, N2, CO2, N2, C2H4, C2H2, H2, H2O (7)

Neraca Massa Total Neraca Komponen a. Methana

FLASH DRUM 1

Gas From Flash Drum 1 CH4, C3H8, CO2, N2, CO2, N2, C2H4, C2H2, H2, (11)

Liquid From Flash Drum 1 : Aliran11 = Aliran7 – Aliran8 H2O (8) : Methana11 = Methana7 – Methana8 Methana11 = 301,1572 – 0 = 301,1572 Kg

b.

Ethana

: Ethana11 = Ethana7 – Ethana8 Ethana11 = 0 – 0 = 0,00 Kg

c.

Propana

: Propana11 = Propaa7 – Propana8 Propana11 = 2,5140 – 0 = 2,5140 Kg

d.

Karbon Dioksida

: Karbon Dioksida11 = Karbon Dioksida7 - Karbon Dioksida8 Karbon Dioksida7 = 35,1844 – 0 = 35,1844 Kg

e.

Nitrogen

: Nitrogen11 = Nitrogen7 – Nitrogen8 Nitrogen11 = 35,5686 – 0 = 35,5686 Kg

f.

Ethylene

: Ethylene11 = Ethylene7 – Ethylene8 Ethylene11 = 74,1675 – 0 = 74,1675 Kg

g.

Acetylene

: Acetylene11 = Acetylene7 – Acetylene8 Acetylene11 = 849,7260 – 0 = 849,7260 Kg

A-16

h.

Biacetylene

: Biacetylene11 = Biacetylene 7 – Biacetylene 8 Biacetylene11 = 16,6700 – 0,00 = 16,6700 Kg

i.

Hidrogen

: Hidrogen11 = Hidrogen7 – Hidrogen8 Hidrogen11 = 477,5693 – 0 = 477,5693 Kg

j.

5.

H2O

: H2O (11) = H2O (7) – H2O (8) H2O (11) = 400 - 400 = 0 Kg

Neraca Massa pada Adsorber (AD-01) Gas From Flash Drum 1 CH4, C3H8, CO2, N2, CO2, N2, C2H4, C2H2, H2, (11)

Neraca Massa Total Neraca Komponen a. Methana

Gas From Adsorber CH4, N2, CO2, N2, C2H2, H2, (13) ADSORBER

Adsorbed Compounds : Aliran13 = Aliran11 – Aliran12 C3H8, CO2, C2H4 (12) : Methana13 = Methana11 – Methana12 Methana13 = 301,1572 – 0 = 301,1572 Kg

b.

Ethana

: Ethana13 = Ethana11 – Ethana12 Ethana13 = 0 – 0 = 0,00 Kg

c.

Propana

: Propana13 = Propana11 – Propana12 Propana11 = 2,5140 Kg Propana12 = 100% × 2,5140 = 2,5140 Kg Propana13 = 2,5140 - 2,5140

A-17

= 0,00 Kg

d.

Karbon Dioksida

: Karbon Dioksida13 = Karbon Dioksida11 - Karbon Karbon Dioksida11 Karbon Dioksida12 Karbon Dioksida13

Dioksida12 = 35,1844 Kg = 95% × 35,1844 = 33,4212 Kg = 35,1844 - 33,4212 = 1,7590 Kg

e.

Nitrogen

: Nitrogen13 = Nitrogen11 – Nitrogen12 Nitrogen13 = 35,5686 – 0 = 35,5686 Kg

f.

Ethylene

: Ethylene13 = Ethylene11 – Ethylene12 Ethylene13 = 74,1675 – 0 = 74,1675 Kg

g.

Acetylene

: Acetylene13 = Acetylene11 – Acetylene12 Acetylene13 = 849,7260 – 0 = 849,7260 Kg

h.

Biacetylene

: Biacetylene13 = Biacetylene 11 – Biacetylene 12 Biacetylene11 = 16,6700 Kg Biacetylene12 = 100% × 16,6700 Kg = 16,6700 Kg

Biacethylene13 = 16,6700 - 16,6700 = 0,00 Kg

i.

Hidrogen

: Hidrogen13 = Hidrogen11 – Hidrogen12 Hidrogen13 = 477,5693 – 0 = 477,5693 Kg

A-18

6.

Neraca Massa pada Flash Drum 2 (S-02)

Gas From Adsorber CH4, N2, CO2, N2, C2H2, H2, (13)

Gas From Flash Drum 2 CH4, N2, CO2, N2, C2H2, H2, (15) FLASH DRUM 2

Neraca Massa Total

:

Flash Drum 2 Aliran15 =Liquid AliranFrom 13 – Aliran14 Purified C2H2, CH4, CO2, C2H4 (14)

Neraca Komponen a. Methana

:

Methana15 = Methana13 – Methana14 Methana13 = 301,1572 Kg Methana14 = 0,41% × 301,1572 = 1,2297 Kg Methana15 = 301,1572 – 1,2297 = 299,9275 Kg

b.

:

Karbon Dioksida15 = Karbon Dioksida13 - Karbon

Karbon Dioksida

Dioksida14 Karbon Dioksida13 = 1,7590 Kg Karbon Dioksida14 = 20% × 1,7590 = 0,3074 Kg Karbon Dioksida15 = 1,7590 - 0,3074 = 1,4516 Kg c.

Nitrogen

:

Nitrogen15 = Nitrogen13 – Nitrogen14 Nitrogen15 = 35,5686 – 0 = 35,5686 Kg

d.

Ethylene

:

Ethylene15 = Ethylene13 – Ethylene14 Ethylene13 = 74,1675 Kg Ethylene14 = 6,5% × 74,1675 = 4,7627 Kg Ethylene15 = 74,1675 – 4,7627 = 69,4048 Kg

e.

Acetylene

:

Acetylene15 = Acetylene13 – Acetylene14 Acetylene13 = 849,7260 Kg Acetylene14 = 60% × 849,7260 = 499,4461 Kg

A-19

Acetylene15 = 849,7260 – 499,4461 = 350,2799 Kg

f.

Hidrogen

:

Hidrogen15 = Hidrogen13 – Hidrogen14 Hidrogen15 = 477,5693 – 0 = 477,5693 Kg

7.

Neraca Massa pada Splitter (SP-01) Gas From Flash Drum 2 CH4, N2, CO2, N2, C2H2, H2, (15) Neraca Massa Total Neraca Komponen a. Methana

b.

Karbon Dioksida

Recycle CH4, CO2, N2, C2H4, C2H2, H2 (17) SPLITTER Waste – Aliran : Aliran17 = Aliran 15 16 CH4, CO2, N2, C2H4, C2H2, H2 (16) : Methana17 = Methana15 – Methana16 Methana15 = 299,9275 Kg Methana16 = 30% × 299,9275 = 88,6292 Kg Methana17 = 299,9275 – 88,6292 = 211,2983 Kg : Karbon Dioksida17 = Karbon Dioksida15 - Karbon Dioksida16 Karbon Dioksida15 = 1,4516 Kg Karbon Dioksida16 = 30% × 1,4516 = 0,4341 Kg Karbon Dioksida17 = 1,4516 - 0,4341 = 1,0128 Kg

A-20

c.

Nitrogen

: Nitrogen17 = Nitrogen15 – Nitrogen16 Nitrogen15 = 35,5686 Kg Nitrogen15 = 30 % ×35,5686 = 10,6946 Kg Nitrogen15 = 35,5686 – 10,6946 = 24,9540 Kg

d.

Ethylene

: Ethylene17 = Ethylene15 – Ethylene16 Ethylene15 = 69,4048 Kg Ethylene16 = 30% × 69,4048 = 20,9671 Kg Ethylene17 = 69,4048 – 20,9671 = 48,9232 Kg

e.

Acetylene

: Acetylene17 = Acetylene15 – Acetylene16 Acetylene15 = 350,2799 Kg Acetylene16 = 30% × 350,2799 = 499,4461 Kg Acetylene17 = 350,2799 – 105,3040 = 245,7094 Kg

f.

Hidrogen

: Hidrogen17 = Hidrogen15 – Hidrogen16 Hidrogen15 = 477,5693 Kg Hidrogen16 = 30% × 477,5693 = 143,5478 Kg Hidrogen17 = 477,5693 – 143,5478 = 334,9449 Kg

A-21