| Summary: | Preparation of catalysts H/AlMCM-41, Ni/AlMCM-41 and H/bentonit for
jatropha curcas oil cracking to produce biofuel have been conducted.
The research consist of catalysts preparation, catalysts characterization and
catalytic activity test by using jatropha curcas oil. Preparation AlMCM-41 was done
by dissolving CTAB in distilled water and then TMAOH, K2SO4, sodium silicate,
sodium aluminate and H2SO4 were added. The solution was crystallized at 100 oC for
24 hours and calcination at 540 oC for 6 hours. The results of synthesis AlMCM-41
was characterized by XRD, FT-IR, TEM and BET. H/AlMCM-41 was obtained from
the immersion of AlMCM-41 in 0.5 M NH4Cl and Ni/AlMCM-41 was obtained from
the immersion of AlMCM-41 in 0.1 M NiCl2. H/bentonite was obtained from
immersion of bentonite in HCl. H/bentonite was characterized by XRD and FT-IR.
Cracking of jatropha curcas oil was done in a reactor at 400 oC with ratio catalysts to
feed were 1:50. The products were analyzed by GC-MS.
The research product of AlMCM-41 had 964.7 m2/g of surface area, 3.04 nm
of pore size, 0.6 cc/g of pore volume and 4.5 nm of lattice parameter.
Characterization by x-ray diffraction showed that AlMCM-41 had high crystallinity.
Result of cracking had 2 layers of liquid, the lower layer was water contained acid
and upper layer consisted of 43.47% of gasoline fraction and 36.99% of diesel
fraction.
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