IV. NERACA MASSA DAN NERACA ENERGI A. Neraca Massa Berikut ini adalah rangkuman neraca massa prarancangan pabrik butynediol dengan kapasitas 40.000 ton/tahun. 1. Vaporizer 01 (VP-101) Tabel 4.1 Neraca massa VP-101 Komponen F4 F5 kg/jam kg/jam formaldehid 3726,9736 3726,9736 Metanol 1643,7537 1643,7537 Air 420,8754 420,8754 Total 5791,6027 5791,6027 2. Separator Drum 01 (SD-101) Tabel 4.2 Neraca massa SD-101 Komponen F5 F6 F7 Formaldehid 3726,9736 2981,5789 745,3947 Metanol 1643,7537 1315,0029 328,7507 Air 420,8754 336,7003 84,1751 Total 5791,6027 4633,2822 1158,3205 5791,6027
39 3. Mix Point 01 (MP-101) Tabel 4.3 Neraca massa MP-101 Komponen F1 F13 F2 Hidrogen 0,1313 6,7596 6,8909 Nitrogen 9,1898 473,1721 482,3619 Acetylene 1696,4322 164,2730 1860,7052 Formaldehid 0,0000 3029,9302 3029,9302 Total 1705,7532 644,2048 2349,9580 2349,9580 4. Mix Point 02 (MP-102) Tabel 4.4 Neraca massa MP-102 Komponen F3 F7 F4 Formaldehid 2981,5789 745,3947 3726,9736 Metanol 1315,0029 328,7507 1643,7537 Air 336,7003 84,1751 420,8754 Total 4633,2822 1158,3205 5791,6027 5791,6027 5. Mix Point 03 (MP-103) Tabel 4.5 Neraca massa MP-103 Komponen F2 F6 F8 Hidrogen 6,8909 0,0000 6,8909 Nitrogen 482,3619 0,0000 482,3619 Acetylene 1860,7052 0,0000 1860,7052 Formaldehid 3029,9302 2981,5789 6011,5091 Metanol 0,0000 1315,0029 1315,0029 Air 0,0000 336,7003 336,7003 Total 5379,8882 4633,2822 10013,1704 10013,1704
40 6. Reaktor Fixed Bed Multitube 01 (R-201) Tabel 4.6 Neraca massa R-201 Terkonsumsi Tergenerasi Komponen F8 F9 kg/jam Hidrogen 6,8909 6,8909 Nitrogen 482,3619 482,3619 Acetylene 1860,7052 1693,2417 167,4635 Formaldehid 6011,5091 2922,7327 3088,7764 Metanol 1315,0029 1315,0029 Air 336,7003 336,7003 0,0000 1838,1967 1838,1967 Butynediol 0,0000 2777,7778 2777,7778 Total 10013,1704 4615,9745 4615,9745 10013,1704 7. Partial Condensor 01 (PC-301) Tabel 4.7 Neraca massa PC-301 Komponen F9 F10 kg/jam kg/jam Hidrogen 6,8909 6,8909 Nitrogen 482,3619 482,3619 Acetylene 167,4635 167,4635 Formaldehid 3088,7764 3088,7764 Metanol 1315,0029 1315,0029 Air 336,7003 336,7003 1838,1967 1838,1967 Butynediol 2777,7778 2777,7778 Total 10013,1704 10013,1704
41 8. Separator Drum 02 (SD-302) Tabel 4.8 Neraca massa SD-302 Komponen F10 F10 V L V L kg/jam Hidrogen 6,8909 0,0000 6,8909 0,0000 Nitrogen 482,3619 0,0000 482,3619 0,0000 Acetylene 167,4635 0,0000 167,4635 0,0000 Formaldehid 3088,7764 0,0000 3088,7764 0,0000 Metanol 0,0000 1315,0029 0,0000 1315,0029 Air 0,0000 336,7003 0,0000 336,7003 0,0000 1838,1967 0,0000 1838,1967 Butynediol 0,0000 2777,7778 0,0000 2777,7778 Total 3745,4927 6267,6777 3745,4927 6267,6777 10013,1704 10013,1704 9. Arus Cabang 01 (ARC-301) Tabel 4.9 Neraca massa ARC-301 Komponen F12 F13 F14 Hidrogen 6,8909 6,7596 0,1313 Nitrogen 482,3619 473,1721 9,1898 Acetylene 167,4635 164,2730 3,1904 Formaldehid 3088,7764 3029,9302 58,8462 Total 3745,4927 3674,1350 71,3577 3745,4927
42 10. Kolom Distilasi 01 (DC-301) Tabel 4.10 Neraca massa DC-301 Komponen F11 F15 (B) F16 (D) Metanol 1315,0029 131,5003 1183,5026 Air 336,7003 303,0303 33,6700 1838,1967 1838,1967 0,0000 Butynediol 2777,7778 2777,7778 0,0000 Total 6267,6777 5050,5051 1217,1727 6267,6777 11. Condensor-301 (CD-301) Tabel 4.11 Neraca Massa CD-301 Komponen V D L Metanol 2911,1175 1183,5026 1727,6149 Air 82,8198 33,6700 49,1497 0,0000 0,0000 0,0000 Butynediol 0,0000 0,0000 0,0000 Total 2993,9373 1217,1727 1776,7646 2993,9373 12. Reboiler-301 (RB-301) Tabel 4.12 Neraca Massa RB-301 Komponen L* V* B Metanol 277,5219 146,0216 131,5003 Air 639,5236 336,4933 303,0303 3879,3818 2041,1851 1838,1967 Butynediol 5862,3000 3084,5222 2777,7778 Total 10658,7273 5608,2223 5050,5051 10658,7273
43 13. Kolom Distilasi 02 (DC-302) Tabel 4.13 Neraca massa DC-302 Komponen F16 F17 (D) F18 (B) Metanol 1183,5026 1171,6676 11,8350 Air 33,6700 0,3367 33,3333 Total 1217,1727 1172,0043 45,1684 1217,1727 14. Condensor 02 (CD-302) Tabel 4.14 Neraca Massa CD-302 Komponen V D L Metanol 1974,7925 1171,6676 803,1249 Air 0,5675 0,3367 0,2308 Total 1975,3600 1172,0043 803,3557 1975,3600 15. Reboiler-302 (RB-302) Tabel 4.15 Neraca Massa RB-302 Komponen L* V* B Metanol 340,7456 328,9106 11,8350 Air 959,7094 926,3761 33,3333 Total 1300,4550 1255,2867 45,1684 1300,4550
44 Neraca Massa Overall Table 4.16 Neraca Massa Overall Komponen F1 F4 F14 F15 F17 F18 Hidrogen 0,1313 0,0000 0,1313 0,0000 0,0000 0,0000 Nitrogen 9,1898 0,0000 9,1898 0,0000 0,0000 0,0000 Acetylene 1696,4322 0,0000 3,1904 0,0000 0,0000 0,0000 Formaldehid 0,0000 2981,5789 58,8462 0,0000 0,0000 0,0000 Metanol 0,0000 1315,0029 0,0000 131,5003 1171,6676 11,8350 Air 0,0000 336,7003 0,0000 303,0303 0,3367 33,3333 0,0000 0,0000 0,0000 1838,1967 0,0000 0,0000 Butynediol 0,0000 0,0000 0,0000 2777,7778 0,0000 0,0000 Total 1705,7532 4633,2822 71,3577 5050,5051 1172,0043 45,1684 6339,0354 6339,0354
45 B. Neraca Energi Berikut ini adalah rangkuman neraca energi prarancangan pabrik butynediol dengan kapasitas 40.000 ton/tahun. 1. Mix Point 02 (MP-102) Tabel 4.17 Neraca Energi Mix Point 02 (MP-102) Panas Panas Keterangan kj/jam Keterangan kj/jam Q4 98.604,4589 Q5 664.284,4094 Q9 565.679,9504 Total 664.284,4094 Total 664.284,4094 2. Vaporizer 01 (VP-101) Tabel 4.18 Neraca Energi Vaporizer 01 (VP-101) Panas Panas Keterangan kj/jam Keterangan kj/jam Q5 664.284,4094 Q6 2.828.399,7522 Qsteam 4.669.382,1165 Qv 2.500.657,7728 Total 53.290,5250 Total 5.333.666,5250 3. Separator Drum (SD-101) Tabel 4.19 Neraca Energi Separator Drum 01 (SD-101) Panas Panas Keterangan kj/jam Keterangan kj/jam Q6 1.659.478,5931 Q7 1.093.798,6426 Q8 565.679,9504 Total 1.659.478,5931 Total 1.659.478,5931
46 4. Expander Valve 01 (EV101) Tabel 4.20 Neraca Energi Expander 01 (EV-101) Panas Panas Keterangan kj/jam Keterangan kj/jam Q1 7.353,0961 Q2-66.132,8636 Wexpander -2302,4530 ΔEk 71.183,5067 Total 5.050,6431 Total 5.050,6431 5. Mix Point 01 (MP-101) Tabel 4.21 Neraca Energi MixPoint 01 (MP-101) Panas Panas Keterangan kj/jam Keterangan kj/jam Q2-66.132,8636 Q10 133.051,4938 Q22 246.286,3203 Total 180.153,4567 Total 180.153,4567 6. Mix Point 03 (MP-103) Tabel 4.22 Neraca Energi MixPoint 03 (MP-103) Panas Panas Keterangan kj/jam Keterangan kj/jam Q10 180.153,4567 Q11 520.125,7920 Q7 339.972,3353 Total 520.125,7920 Total 520.125,7920 7. Heat Exchanger 01 (HE-101) Tabel 4.23 Neraca Energi HE-101 Panas Panas Q14 3.159.883,8214 Q15 2.574.099,2769 Q11 520.125,7920 Q12 1.304.587,2576 Total 3.680.009,6134 Total 3.680.009,6134
47 8. Heater 01 (HT-101) Tabel 4.24 Neraca Energi HT-101 Panas Panas Q12 1.304.587,25762 Q13 3.180.247,4722 Qsteam 1.875.660,21453 Total 3.180.247,4722 Total 3.180.247,4722 9. Reaktor Fixed-Bed Multitube 01 (R-201) Tabel 4.25 Neraca Energi R-201 Panas Panas Tergenerasi Panas Keterangan kj/jam Keterangan kj/jam Keterangan kj/jam Q13 3376786,503 Q R - 8682582,4852 Q14 3338096,572 Qc in 1157026,7913 Qc out 9878299,2069 Total 4533813,2940 Total 4533813,2940 10. Expander Valve 01 (EV-301) Tabel 4.26 Neraca Energi Expander Valve 01 (EV-301) Panas Panas Q15 2.375.422,3558 Q16 2.375.422,3558 Total 2.375.422,3558 Total 2.375.422,3558 11. Partial Condenser 01 (PC-301) Tabel 4.27 Neraca Energi PC-301 Panas Panas Q16 2.375.422,3558 Q17(gas) 134.531,1440 Q air in 1.730.327,6456 Q17 (cair) 1.665.332,9775 Q kondensasi 10.945.015,5903 Q air out 13.250.901,4702 Total 15.050.765,5917 Total 15.050.765,5917
48 12. Separator Drum 02 (SD-302) Tabel 4.28 Neraca Energi Separator Drum 01 (SD-101) Panas Panas Q17 2.199.344,0587 Q18 2.035.957,5584 Q20 163.386,5003 Total 2.199.344,0587 Total 2.199.344,0587 13. Kompresor 01 (K-301) Tabel 4.29 Neraca Energi K-301 Panas Panas Q20 134.531,1440 Q21 250.734,9192 Qintercooling 116.203,7752 Ws -235.037,5076 Ek 235.037,5076 Total 1.120.186,5124 Total 250.734,9192 14. Expander Valve 02 (EV-302) Tabel 4.30 Neraca Energi Expander Valve 02 (EV-302) Panas Panas Q18 2.035.957,5584 Q19 2.035.957,5584 Total 2.035.957,5584 Total 2.035.957,5584 15. Kolom Distilasi 01 (DC-301) Tabel 4.31 Neraca energi DC-301 Panas Panas Q umpan 1.665.332,9775 Q bottom 1.466.485,7640 Q reboiler 4.734.480,4455 Q distilat 405.471,3299 Q condenser 4.527.856,3291 Total 6.399.813,4230 Total 6.399.813,4230
49 16. Expander Valve 03 (EV-303) Tabel 4.32 Neraca Energi Expander Valve 03 (EV-303) Panas Panas Q15a 1.466.485,7640 Q15 1.466.485,7640 Total 1.466.485,7640 Total 1.466.485,7640 17. Cooler 01 (CO-301) Tabel 4.33 Neraca energi CO-301 Panas Panas Qumpan 1.466.485,76396 Qliquid out 75.537.97807 Q cooling water 1.390.947,78589 Total 1.466.485,76396 Total 1.466.485,76396 18. COOLER 02 (CO-302) Tabel 4.34 Neraca energi CO-302 Panas Panas Qumpan 405.471,3299 Qliquid out 357.614,7562 Q cooling water 47.856,5737 Total 405.471,3299 Total 405.471,3299 19. Kolom Distilasi 02 (DC-302) Tabel 4.35 Neraca energi DC-302 Panas Panas Q umpan 357.614,7562 Q bottom 84.667,2491 Q reboiler 3.256.904,8765 Q distilat 282.434,6474 Q condenser 3.247.417,7362 Total 3.614.519,6327 Total 3.614.519,6327
50 20. Expander Valve 04 (EV-304) Tabel 4.36 Neraca Energi Expander Valve 04 (EV-304) Panas Panas Q32 84.667,2491 Q38 84.667,2491 Total 84.667,2491 Total 84.667,2491 21. Cooler 03 (CO-303) Tabel 4.37 Neraca energi CO-303 Panas Panas Qumpan 84.667,2491 Qliquid out 4.907,3448 Q cooling water 79.759,9043 Total 84.667,2491 Total 84.667,2491 22. Expander Valve 05 (EV-305) Tabel 4.38 Neraca Energi Expander Valve 05 (EV-305) Panas Panas Q35 282.434,6474 Q37 282.434,6474 Total 282.434,6474 Total 282.434,6474 23. COOLER 04 (CO-304) Tabel 4.39 Neraca energi CO-304 Panas Panas Qumpan 282.434,6474 Qliquid out 25.416,4983 Q cooling water 257.018,1491 Total 282.434,6474 Total 282.434,6474