Abstract: Magnesol membrane
has been prepared by mixing chitosan polymer with magnesol particles via phase
inversion method. The
optimum compositions of
adsorptive membranes were
3% chitosan, 15% DMF
and 60% loading
adsorbent. The porosity
of these membranes
was 34,17% and swelling degree was 51,91%. The membrane clean water flux
was 224,4 Lm-2h-1 at a transmembrane pressure of 2.5
bar. The adsorptive membrane possesses
an open and interconnected porous structure
with a large
surface area available
for biodiesel purities adsorption. The results showed that
after contacting in 60 minutes, numbers of acid value was reduced as
81,12% which is in
accordance with value
of SNI quality
standards. In addition, the soap content adsorbed was
86,74% as potassium soap and 86,73% as
sodium soap. The regenerated
membrane can be
reused with mantaining
the high adsorption
capacity. The methanol was
better than ethanol
to regenerate the
magnesol membrane. The Magnesol membrane will be a new
alternative method for biodiesel purification.
Keywords: biodiesel, membrane
adsorption, chitosan, magnesol, acid number, soap
Penulis: Saiful, Nurfitriana,
Muliadi Ramli, Ilham Maulana
Kode Jurnal: jpkimiadd130126
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