PROSES INDUSTRI KIMIA Industri Pembuatan Methanol
Disusun Oleh :Fitria Wulansari(061230400296)Hardina Apri Saputri
(061230400297)4.KADosen Pembimbing : Ir.Hj.Erwana Dewi.,M.Eng
POLITEKIK NEGERI SRIWIJAYA2013-2014
Recycle :CO = ...kgH2 = ...kg
Purge gas :CO2 = ... kg
CH3OH(l)= ......kg(CH3)2O(l)= .....kg
REAKTOR
ALKOHOL TOWERETHER TOWER
CO= .....kgH2= .....kgTotal =.....kgSEPARATOR I
C2H5OH(l)= ....kg
KONDENSORFuel gas :CH4= ...kg
H2O(l)=.....kgH2O(l)= .....kgCH3OH(l)= .....kgC2H5OH(l)=
...kg(CH3)2O(l)= ....kgCH3CHO(l)= .....kgCH3COCH3(l)
=....kgTotal=....kgH2O(l)= .........kgCH3OH(l)= .......kgC2H5OH(l)=
.......kgTotal= .......kgH2O(l)= ..........kgCH3OH(l)=
.........kgC2H5OH(l)= ........kg(CH3)2O(l)= ........kgTotal=
........kgKMnO4 =..kgCO (g)= ....kgH2(g)= ....kgH2O(g)=....
kgCH3OH(g)= ...kgCH4(g)= .....kgCO2(g)=
.....kgC2H5OH(g)=....kg(CH3)2O(g)= ....kgCH3CHO(g)=....kgCH3COCH3
(g)=...kgTotal = ...kgSEPARATOR IITANGKI BERPENGADUK
1. Neraca massa pada Reaktor :
CO= ........ kgH2= ........ kgH2O= ........ kgCH3OH= ........
kgCH4= ........ kgCO2= ........ kgC2H5OH= ........ kg(CH3)2O=
........ kgCH3CHO= ........ kgCH3COCH3 =.....kgTotal= ........
kgReaktor
CO= .....kgH2= .....kgTotal =.....kg
Bahan baku :
Reaksi utama :CO+ 2H2CH3OHM :31,78 kmol63,5 kmolR :31,25
kmol62,5 kmol31,25 kmolS:0,53 kmol1,00 kmol31,25 kmol
Reaksi samping :a. 80%Reaksi 1CO+ 3H2CH4+H2OM :0,53 kmol1,00
kmolR :0,26 kmol0,80 kmol0,26 kmol0,26 kmolS:0,27 kmol0,2 kmol0,26
kmol0,26 kmolb. 85 %Reaksi 22CO+ 2H2CH4+CO2M :0,27 kmol0,2 kmolR
:0,17 kmol0,17 kmol0,085 kmol0,085 kmolS:0.10 kmol0,03 kmol0,085
kmol0,085 kmolc. 90 %Reaksi 34CO+ 8H2 (CH3)2O + 2H2O+ C2H5OHM :0,10
kmol0,03 kmolR :0,0135 kmol0,027 kmol 3,375x10-3 kmol 6,75x10-3
kmol 3,375x10-3 kmolS:0,0865 kmol0,003 kmol 3,375x10-3 kmol
6,75x10-3 kmol 3,375x10-3 kmold. 95 %Reaksi 42CO+ 3H2 CH3CHO+H2OM
:0,0865 kmol0,003 kmolR :1,9x10-3 kmol2,85x10-3 kmol9,5x10-4
kmol9,5x10-4 kmolS:0,0846 kmol1,5x10-4 kmol9,5x10-4 kmol9,5x10-4
kmoe. 99 %Reaksi 53CO+ 5H2 CH3COCH3+2H2OM :0,0846 kmol1,5x10-4
kmolR :8,91x10-5 kmol1,485x10-4 kmol2,97x10-5 kmol5,94x10-5
kmolS:0,08451 kmol0,015x10-4 kmol2,97x10-5 kmol5,94x10-5 kmolNeraca
massa pada reaktor :KomponenBM(kg/kmol)InputOutput
KmolKgKmolKg
CO2831,788900,084512,36628
H2263,51270,015x10-43x10-6
CH3OH3231,251000
CH4160,3455,52
H2O180,267764,8197
CO2440,0853,74
C2H5OH463,375x10-30,15525
(CH3)2O463,375x10-30,15525
CH3CHO449,5x10-40,0418
CH3COCH3582,97x10-51,7226x10-3
Jumlah10171016,8
CO= 2,36628 kgH2= 3x10-6 kgH2O= 4,8197 kgCH3OH= 1000 kgCH4= 5,52
kgCO2= 3,74 kgC2H5OH= 0,15525kg(CH3)2O= 0,15525kgCH3CHO=
0,0418kgCH3COCH3 =1,7226x10-3kgTotal= 1016,8kg
CO= 890 kgH2= 127 kgTotal = 1017 kgReaktor
2. Neraca massa pada kondenserDi dalam alat kondenser terjadi
perubahan fase produk dari gas menjadi liquid.
CO (g)= 2,36628 kgH2(g)= 3x10-6 kgH2O(g)= 4,8197 kgCH3OH(g)=
1000 kgCH4(g)= 5,52 kgCO2(g)= 3,74 kgC2H5OH(g)=
0,15525kg(CH3)2O(g)= 0,15525kgCH3CHO(g)= 0,0418kgCH3COCH3
(g)=1,7226x10-3kgTotal= 1016,8kgCO(l)= 2,36628 kgH2(l)= 3x10-6
kgH2O(l)= 4,8197 kgCH3OH(l)= 1000 kgCH4(l)= 5,52 kgCO2(l)= 3,74
kgC2H5OH(l)= 0,15525kg(CH3)2O(l)= 0,15525kgCH3CHO(l)=
0,0418kgCH3COCH3(l) =1,7226x10-3kgTotal= 1016,8kgKondensor
3. Neraca massa pada separator
CO(l)= 2,36628 kgH2(l)= 3x10-6 kgCO2(l)= 3,74 kg Total= 6,10628
kgDi dalam separator terjadi pemisahan terhadap purge gas dan flue
gas
CH4(l)= 5,52 kg
SEPARATOR IISEPARATOR IH2O(l)= 4,8197 kgCH3OH(l)= 1000
kgC2H5OH(l)= 0,15525kg(CH3)2O(l)= 0,15525kgCH3CHO(l)=
0,0418kgCH3COCH3(l) =1,7226x10-3kgTotal= 1005,17 kgCO(l)= 2,36628
kgH2(l)= 3x10-6 kgH2O(l)= 4,8197 kgCH3OH(l)= 1000 kgCH4(l)= 5,52
kgCO2(l)= 3,74 kgC2H5OH(l)= 0,15525kg(CH3)2O(l)=
0,15525kgCH3CHO(l)= 0,0418kgCH3COCH3(l) =1,7226x10-3kgTotal=
1016,8kg
H2O(l)= 4,8197 kgCH3OH(l)= 1000 kgCH4(l)= 5,52 kgC2H5OH(l)=
0,15525kg(CH3)2O(l)= 0,15525kgCH3CHO(l)= 0,0418kgCH3COCH3(l)
=1,7226x10-3kgTotal= 1010,69 kg
4. Neraca massa pada Tangki berpengadukDigunakan Cairan KmnO4
untuk menyerap bahan pengtor seperti aldehid dan keton. Hal ini
ditunjukkan dengan perubahan warna
KMnO4= 0,05kg
H2O(l)= 4,8197 kgCH3OH(l)= 1000 kgC2H5OH(l)=
0,15525kg(CH3)2O(l)= 0,15525kgCH3CHO(l)= 0,0418kgCH3COCH3(l)
=1,7226x10-3kgTotal= 1005,17 kg
H2O(l)= 4,8197 kgCH3OH(l)= 1000 kgC2H5OH(l)=
0,15525kg(CH3)2O(l)= 0,15525kgTotal= 1005,1265 kg
KmnO4= 0,05 kgCH3CHO (l)= 0,0418kgCH3COCH3(l)
=1,7226x10-3kgTotal= 0,0935 kg
5. Neraca massa pada Ether towerPada eter tower ini berfungsi
untuk menghilangkan senyawa eter
(CH3)2O(l)= 0,15525kg
Eter tower
H2O(l)= 4,8197 kgCH3OH(l)= 1000 kgC2H5OH(l)=
0,15525kg(CH3)2O(l)= 0,15525kgTotal= 1005,1265 kg
H2O(l)= 4,8197 kgCH3OH(l)= 1000 kgC2H5OH(l)= 0,15525kgTotal=
1004,97125 kg
Steam6. Neraca massa pada alkohol tower
C2H5OH(l)= 0,15525kg
Alkohol tower
H2O(l)= 4,8197 kgCH3OH(l)= 1000 kgC2H5OH(l)= 0,15525kgTotal=
1004,97125 kg
CH3OH= 1000 kg
H2O(l)= 4,8197 kg
Recycle :CO (g)= 2,36628 kgH2(g)= 3x10-6 kg
Purge gas :CO2 = 3,74 kg
CH3OH(l)= 1000 kgC2H5OH(l)= 0,15525kg
REAKTOR
ALKOHOL TOWERETHER TOWER
CO= 890 kgH2= 127 kgTotal = 1017 kgSEPARATOR I
C2H5OH(l)= 0,15525kg
Fuel gas :CH4= 5,52 kgKONDENSOR
H2O(l)= 4,8197 kgH2O(l)= 4,8197 kgCH3OH(l)= 1000 kgC2H5OH(l)=
0,15525kgTotal= 1004,97125 kgH2O(l)= 4,8197 kgCH3OH(l)= 1000
kgC2H5OH(l)= 0,15525kg(CH3)2O(l)= 0,15525kgTotal= 1005,1265 kgKMnO4
=0,05kgCO (g)= 2,36628 kgH2(g)= 3x10-6 kgH2O(g)= 4,8197kgCH3OH(g)=
1000kgCH4(g)= 5,52 kgCO2(g)= 3,74kgC2H5OH(g)= 0,15525kg(CH3)2O(g)=
0,15525kgCH3CHO(g)= 0,0418kgCH3COCH3 (g)=1,7226x10-3kgTotal=
1016,8kgH2O(l)= 4,8197 kgCH3OH(l)= 1000 kgC2H5OH(l)=
0,15525kg(CH3)2O(l)= 0,15525kgCH3CHO(l)= 0,0418kgCH3COCH3(l)
=1,7226x10-3kgTotal= 1005,17 kgSEPARATOR IITANGKI BERPENGADUK
NERACA MASSA OVER ALLKomponenBM(kg/kmol)InputOutput
KmolKgKmolKg
CO2831,788900,084512,36628
H2263,51270,015x10-43x10-6
CH3OH3231,251000
CH4160,3455,52
H2O180,267764,8197
CO2440,0853,74
C2H5OH463,375x10-30,15525
(CH3)2O463,375x10-30,15525
CH3CHO449,5x10-40,0418
CH3COCH3582,97x10-51,7226x10-3
KMnO4158,030,000310,050,000310,05
Jumlah1017,051016,85
