PEMISAHAN AMIL ALKOHOL DARI LIMBAH CAIR LUTTER WASHER
ABSTRACT: Fusel oil is a side
product of ethanol manufacturing process through the fermentation of molasses. Sometimes,
fusel oil is
accidently mixed with
liquid waste from
the bottom of alcohol
rectifying column. This
mixture is called
lutter washer. Fusel
oil contains isoamyl alcohol, n-amyl alcohol, and other
alcohols. Isoamyl alcohol is the raw material of organic ester. Further
processing is required to increase the economic value of fusel oil, such as the
separation of components
by distillation. In
this study, the
composition of isoamyl
alcohol and n-amyl alcohol in the residue in the distillation process as
a function of distillation time in
a packing column
was evaluated. An
artificial waste lutter
washer was used
as a raw materials in this experiment. The
processes were conducted using a distillation column with a cylindrical
dan spherical glass
packing materials. Lutter
washer was distilled
with total reflux until
the equilibrium temperature
was reached, then
the data of
the experiment was taken during 180 minutes at the condition
of reflux at 5/5 (5 minutes distillate was returned to the
tower and 5
minutes distillate was
collected). The composition
of the distillation residue were
evaluated at interval
time of 30
minutes. The same
processes were evaluated using different heights of packing materials. The data show that
the highest composition of isoamyl alcohol
and n-amyl alcohol
are 21.99% and
3.70% of the
15 mL total
residue, respectively. It is
obtained in the
distillation process that
used the packing
materials with ball shape, the
column with 85 cm of height and 3.5 cm of diameter.
Penulis: Ani Purwanti
Kode Jurnal: jptindustridd160040
