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2.4.1. Neraca Massa
Basis perhitungan : 1 jam operasi
Satuan : kgjam
Neraca massa prarancangan pabrik benzene sesuai dengan gambar 2.3.
Tabel 2.2 Neraca Massa pada Tee1
Komponen Masuk kgjam
Keluar kgjam Arus 1
Arus 3 Arus 2
C
6
H
6
6,541 0,699
7,240 C
7
H
8
50.689,943 12.672,261
63.362,204 Total
50.696,484 12.672,960
63.369,444 63.369,444
63.369,444
Tabel 2.3 Neraca Massa pada Vaporizer 1 VP-01
Komponen Masuk kgjam
Keluar kgjam Arus 2
Arus 3 Arus 4
C
6
H
6
7,240 0,699
6,541 C
7
H
8
63.362,204 12.672,261
50.689,943 Total
63.369,444 12.672,960
50.696,484 50.696,484
50.696,484
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Tabel 2.4 Neraca Massa pada Tee2
Komponen Masuk kgjam
Keluar kgjam Arus 4
Arus 21 Arus 5
C
6
H
6
6,541 37,896
44,437 C
7
H
8
50.689,943 8.725,546
59.415,489 C
12
H
10
0,000 6,548
6,548 Total
50.696,484 8.769,989
59.466,473 59.466,473
59.466,473
Tabel 2.5 Neraca Massa pada Tee3
Komponen Masuk kgjam
Keluar kgjam Arus 5
Arus 13 Arus 6
H
2
0,000 6.460,000
6.460,000 CH
4
0,000 1.162,536
1.162,536 C
6
H
6
44,437 267,563
312,000 C
7
H
8
59.415,489 16,511
59.432,000 C
12
H
10
6,548 0,000
6,548 Total
59.466,473 7.906,610
67.373,084 67.373.0837
67.373.0837
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Tabel 2.6 Neraca Massa pada Tee4
Komponen Masuk kgjam
Keluar kgjam Arus 11
Arus 12 Arus 13
H
2
3.720,817 2.739,183
6.460,000 CH
4
1.142,529 20,007
1.162,536 C
6
H
6
267,563 0,000
267,563 C
7
H
8
16,511 0,000
16,511 Total
5147,421 2.759,190
7.906,610 7.906,610
7.906,610
Tabel 2.7 Neraca Massa pada Reaktor Komponen
Masuk kgjam Keluar kgjam
Arus 6 Arus 7
H
2
6.460,000 5.404,237
CH
4
1.162,536 9.948,136
C
6
H
6
312,000 39.831,714
C
7
H
8
59.432,000 8.914,800
C
12
H
10
6,548 3.274,197
Total 67.373.084
67.373.084 67.373.084
67.373.084
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Tabel 2.8 Neraca Massa pada Flash drum 1 FD-01
Komponen
Masuk kgjam Keluar kgjam
Arus 8 Arus 9
Arus 14 H
2
5.404,237 5.404,237
0,000 CH
4
9.948,136 1.659,446
8.288,689 C
6
H
6
39.831,714 388,618
39.443,096 C
7
H
8
8.914,800 23,981
8.890,819 C
12
H
10
3.274,197 0,000
3.274,197 Total
67.373,084 7.476,283
59.896,801 67.373,084
67.373,084
Tabel 2.9 Neraca Massa pada Tee5
Komponen
Masuk kgjam Keluar kgjam
Arus 9 Arus 10
Arus 11 H
2
5.404,237 1.683,420
3.720,817 CH
4
1.659,446 516,918
1.142,529 C
6
H
6
388,618 121,054
267,563 C
7
H
8
23,981 7,470
16,511 Total
7.476,283 2.328,862
5147,421 7.476,283
7.476,283
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Tabel 2.10 Neraca Massa pada Flash drum 2 FD-02
Komponen
Masuk kgjam Keluar kgjam
Arus 14 Arus 15
Arus 17 CH
4
8.288,689 8.288,689
0,000 C
6
H
6
39.443,096 1.547,207
37.895,889 C
7
H
8
8.890,819 95,039
8.795,780 C
12
H
10
3.274,197 0,000
3.274,196 Total
59.896,801 9.930,935
49.965,866 59.896,801
59.896,801
Tabel 2.11 Neraca Massa pada Tee6
Komponen Masuk kgjam
Keluar kgjam Arus 10
Arus 15 Arus 16
H
2
1.683,420 0,000
1.683,420 CH
4
516,918 8.288,689
8.805,607 C
6
H
6
121,054 1.547,207
1.668,262 C
7
H
8
7,470 95,039
102,509 Total
2.328,862 9.930,935
12.259,797 12.259,797
12.259,797
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Tabel 2.12 Neraca Massa pada Menara Distilasi 1 MD-01
Komponen
Masuk kgjam Keluar kgjam
Arus 17 Arus 18
Arus 19 C
6
H
6
37.895,889 37.857,993
37,896 C
7
H
8
8.795,780 26,387
8.769,393 C
12
H
10
3.274,196 0,000
3.274,196 Total
49.965,866 37.884,380
12.081,485 49.965,866
49.965,866
Tabel 2.13 Neraca Massa pada Menara Distilasi 2 MD-02
Komponen
Masuk kgjam Keluar kgjam
Arus 19 Arus 20
Arus 21 C
6
H
6
37,896 0,000
37,896 C
7
H
8
8.769,393 4,847
8.725,546 C
12
H
10
3.274,196 3.267,649
6,548 Total
12.081,485 3.311,496
8.769,989 12.081,485
12.081,485
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Tabel 2.14 Neraca Massa Total Komponen
Input kgjam Output kgjam
Arus 1 Arus 12
Jumlah Arus 16
Arus 18 Arus 20
Jumlah H
2
0,00 2.739,18
2.739,18 1.683,42
0,00 0,00
1.683,42 CH
4
0,00 20,00
20,01 8.805,60
0,00 0,00
8.805,61 C
6
H
6
6,54 0,00
6,54 1.668,26
37.857,99 0,00
39.526,25 C
7
H
8
50.689,94 0,00
50.689,94 102,51
26,39 43,85
172,74 C
12
H
10
0,00 0,00
0,00 0,00
0,00 3.267,65
3.267,65 Jumlah
53.455,67 53.455,67
2.4.2. Neraca Panas
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