7/22/2019 Penentuan Fraksi Volume Etanol

1/4

vair fraksi Brt + brt pikno Petanol

25 0,16 47,2559 0,975048

20 0,32 46,7656 0,955593

15 0,48 46,1846 0,932539

10 0,64 45,4259 0,902434

5 0,8 44,6144 0,870235

0 0,96 43,3487 0,820012

1 0 0,789

Penentuan Fraksi Volume etanolDik : %et = 96%

Vet = 15 ml

Vair = 15 ml

Fraksi volume etanol=

=

=

= 0,48

Penentuan Fraksi berat etanolDik : %et = 96%

Vet = 15 ml

Vair = 15 ml

Pair = 0,99534

Pet = 0,789

Fraksi mol =

=

(

)

7/22/2019 Penentuan Fraksi Volume Etanol

2/4

=

= 0,423

Penentuan Fraksi berat etanolDik : %et = 96%

Vet = 15 ml

Vair = 15 ml

Pair = 0,99534 g/ml

Pet = 0,789 g/ml

Mret = 46g/mol

Mrair = 18 g/mol

Fraksi mol =

=

( )

=

= 0,2225

Penentuan fraksi volume, berat dan mol untuk feed, destilat dan residu dengan menggunakan

grafik

Fraksi volumep %et

Feed 0,954379 0,327466

Destilat 0,803533 0,984226

Residu 0,974481 0,233582

7/22/2019 Penentuan Fraksi Volume Etanol

3/4

Fraksi beratp %et

Feed 0,954577 0,327466

Destilat 0,803533 0,984226

Residu 0,974481 0,233582

Fraksi Mol

p %et

46,74 0,954577 0,119907

42,9334 0,803533 0,927629

47,2416 0,974481 0,013473

Neraca Massa total secara praktekF = D + R + Loss

5000 ml = 650 ml + 4271 ml + loss

Loss = 5000 ml (650 ml + 4271)

Loss = 79

Neraca komponen

1. Neraca VolumeKomponen etanol

F.xf = D.Xd + R.Xr + loss

5000 ml x 0,328401 = 650 ml x 0,984226 + 4271 ml x 0,233582 + loss

Loss = 1642,007 ml (639,7469 ml + 997,6303 ml)

= 4,62964 ml

Komponen air

F.xf = D.Xd + R.Xr + loss

5000 ml x 0,328401 = 650 ml x (1- 0,984226) + 4271 ml x (1- 0,233582) + loss= 74,37036 ml

%Loss.et = 5,860304 %

%loss.air = 94,1397 %

7/22/2019 Penentuan Fraksi Volume Etanol

4/4

2. Neraca BeratKomponen etanol

F.xf = D.Xd + R.Xr + loss

5000 ml x 0,328401 x 0,954379 g/ml = 650 ml x 0,984226 x 0,803533+ 4271 ml x 0,233582 x 0,974481+ loss

Loss = 1295,543416 g (504,7603 + 787,1303) g

= 3,6527 g

Komponen air

F.xf = D.Xd + R.Xr + loss

5000 ml x 0,328401 x 0,953479 = 650 ml x (1- 0,984226) x 0,803533+ 4271 ml x (1- 0,233582) x 0,974481 + loss

= 99,0248 g

%Loss.et = 3,55753 %

%loss.air = 96,44247 %

3. Neraca molKomponen etanol

F.xf = D.Xd + R.Xr + loss

(5000 ml x 0,120968 x 0,789 g/ml)/46 =( 650 ml x 0,789 x 0,927629+ 4271 ml )/46x (0,233582 x 0,789 x 0,013473)/46+ loss

Loss = 11,474 (10,342 + 0,981)

= 0,151 g

Komponen air

F.xf = D.Xd + R.Xr + loss

5000 ml x 0,953479 = 650 ml x (1- 0,984226) x 0,803533+ 4271 ml x (1- 0,233582) x 0,974481 + loss

= 99,0248 g

%Loss.et = 3,55753 %

%loss.air = 96,44247 %

P %et

0,954379 0,120968

0,803533 0,927629

0,974481 0,013473