Dik : Aseton (CH3COCH3) (99 % pure) = 1 ton Isopropanol
(CH3)2CHOH) (88 % grade) = 1,3 tonUdara= 1760 NmCH4= 50 kgBahan
baku: isopropanol 88% grade= 1,3 ton (CH3)2CHOH (88%)= 1,144 ton x
x = 19,0349 kmol H2O (12%)= 0,156 ton x x = 8,6667 kmol Udara= 1760
Nm x x x = 78,57 kmol O2= x 78,57kmol x = 527,9904 kg N2= x 78,57
kmol x28 = 1737,9684 kg CH4= 50 kg x = 3,125 kmol
1. TUBULAR CATALYTIC REAKTOR(CH3)2CHOH= 1144 kgH2O=156 kg
CO2=.......kgO2 = ..... kgN2 =........kgTotal = .....Total=
1300kg
Fuel gasCH4 = 50 kgO2 =527,9904 kgN2 = 1737,9684 kgTotal =
2315,9588 kg
Flue gas
(CH3)2CHOH=.kgCH3COCH3=.....kgH2=.kgH2O=.kgTotal = ...
90%(CH3)2CHOH CH3COCH3+H2m: 19,0349 --kmolr:
17,131417,131417,1314 kmols: 1,903517,131417,1314 kmolBM:
60,158,12kg/kmolBerat: 114,40035995,3343434,2628 kg
Asumsi Konversi Reaksi 20%
20%(CH3)2CHOH+ O2CH3COCH3 + H2Om: 1,9035 16,4997 --kmolr:0,3807
0,190350,38070,3807kmols: 1,5228 16,309350,38070,3807kmolBM: 60,1
3258,118 kg/kmolBerat: 91,52028 521,899222,118676,8526kg
100%CH4+ 2O2 CO2+2H2Om: 3,12516,30935--kmolr:
3,1256,253,1256,25kmols: -10,059353,1256,25kmolBM:
16324418kg/kmolBerat : - 321,8992137,5112,5kg
Neraca Massa Tubular Catalytic ReaktorKomponenInput (kg)Output
(kg)
(CH3)2CHOHCH3COCH3O2N2CO2H2 H2O CH4 1143,99749-527,99041737,9684
156 5091,520281017,45301321,8992 1737,9684 137,5 34,2628 275,3526
-
Total3615,956293615,95629
(CH3)2CHOH = 1144 kgH2O= 156 kgTotal = 1300 kg
CH4 = 50 kgO2 = 527,9904 kgN2 = 1737,9684 kgTotal = 2315,9588
kgFuel gas
CO2= 137,5 kgO2 = 321,8992 kgN2 = 1737,9684 kgTotal = 2197,3676
kg Flue gas
(CH3)2CHOH= 91,52028 kgCH3COCH3 = 1017,45301 kgH2 = 34,2628
kgH2O = 275,3526kgTotal = 1418,58869 kg
2. WATER SCRUBERPada water scruber diasumsi jumlah H20 = 1000
kg. jumlah ini bergantung dengan jumlah acetone dan isopropanol
yang ingin diserap.
H2= 1000 kgH2=kg
(CH3)2CHOH = 91,52028kgCH3COCH3 = 1017,45301 kgH2 = 34,2628
kgH2O = 275,3526 kgTotal =1418,58869 kg
(CH3)2CHO=.kgCH3COCH3 =..kgH2O =..kgTotal =.kg
Pada Scrubber, terjadi proses penyerapan dengan menggunakan air
sebagai media penyerap. Pada water scrubber, gas H2 yang tidak
terserap keluar pada light ends.Asumsi bahwa semua gas H2 keluar
pada bagian top.Jumlah air yang masuk ke dalam water scrubber
adalah 1000 kg
Neraca Massa Pada Water ScruberKomponenInput (kg)Output (kg)
TopBottom
(CH3)2CHOHCH3COCH3 H2H2O91,520281017,4530134,26281275,3526-
-34,2628 -91,520281017,45301 -1275,3526
Total2418,5886934,26282384,32589
2418,58869
H2O= 1000kgH2= 34,2628 kgH2O= 1000kg
(CH3)2CHOH = 91,52028kgCH3COCH3 = 1017,10kgH2 = 34,2628 kgH2O =
275,3526kgTotal = 1418,58869 kg
(CH3)2CHOH = 91,52028kgCH3COCH3 = 1017,45301kgH2O =
1275,3526kgTotal = 2384,32589 kg
3. ACETONE COLUMNPada acetone column, terjadi pemisahan
berdasarkan titik didih (distilasi). Acetone (99% pure) yang
memiliki titik didih paling rendah yaitu 56.5 oC keluar pada bagian
top serta sebagian dari isopropanol (1%) terikut karena mempunyai
titik didih yang berdekatan dan isopropanol,air sebagai bottom
produk.
CH3COCH3 = ...........kg (CH3)2CHOH = .. kgTotal =...kg
(CH3)2CHOH = 91,52028 kgCH3COCH3 = 1017,45301 kgH2O =
1275,3526kgTotal = 2384,32589 kgACETONE COLUMN
(CH3)2CHOH = .. kgH2O = .. kgTotal =kg
TOP karena jumlah CH3COCH3= 1017,45301 kg, makaCH3COCH3= 99%
1017,45301 kg(CH3)2CHOH= x 1017,45301= 10,2773 kg Bottom(CH3)2CHOH=
91,52028 10,2773= 81,24298kgH2O = 1275,3526 Kg
Neraca Massa Pada Acetone Column KomponenInput (kg)Output
(kg)
TopBottom
(CH3)2CHOHCH3COCH3H2O 91,52028 1017,453011275,3526 10,2773
1017,45301- 81,24298 -1275,3526
Total2384,325891027,730311356,59558
2384,32589
CH3COCH3= 1017,45301 kg(CH3)2CHOH=10,2773 kgTotal = 1027,73031
kg
(CH3)2CHOH = 91,52028 kgCH3COCH3 = 1017,45301 kgH2O = 1275,3526
kgTotal = 2384,32589kgACETONE COLUMN
(CH3)2CHOH = 81,24298 kgH2O= 1275,3526 kgTotal = 1356,59558
kg
4. Isopropanol Column
(CH3)2CHOH=....kgH2O =kgTotal =kgIsopropanol Column
(CH3)2CHOH = 81,24298 kgH2O = 1275,3526 kgTotal = 1356,59558
kg
H2O = ...?
TOP karena (CH3)2CHOH 88 % maka;(CH3)2CHOH 88% 81,24298 kgH2O x
81,24298 kg = 11,0786 kg BottomH2O = 1275,3526 kg 11,0786 kg =
1264,274 kg
Pada isopropanol column, terjadi pemisahan antara isopropanol
(88%) dan air. Pada column ini bottom produk nya isopropanol karena
titik didih nya lebih rendah yaitu 860C.
KomponenInput (kg)Output (kg)
TopBottom
(CH3)2CHOHH2O81,242981275,352681,2429811,0786-1264,274
Total1356,5955892,321581264,274
1356,59558
Isopropanol ColumnIsopropanol coloumn
(CH3)2CHOH = 81,24298kgH2O = 1275,3526 kgTotal = 1356,59558
kg(CH3)2CHOH= 81,24298 kgH2O = 11,0786 kgTotal = 92,32158 kg
H2O= 1264,274 kgto
