Abstract
The catalytic hydrogenation of methyl palmitate to cetyl alcohol using Ni supported on activated natural zeolite catalysts (Ni/Zeolite) has been carried out. In this work, the effect of catalyst amounts and H2 flow rate on methyl palmitate conversion and yield of cetyl alcohol were studied. Catalytic hydrogenation was performed in stainless steel fixed bed reactor. The methyl palmitate (10 g) was loaded into the reactor vessel at 400 °C for 30 minutes. In order to study the effects of catalyst amount at constant H2 flow rate, the catalyst were varied i.e. 5, 10, and 15 g. To investigate the effects of H2 flow rate were varied from 20, 40, and 60 mL.min-1 at constant catalyst amount. The composition of the products was analyzed by GC and GC-MS. The results showed that methyl palmitate conversion increase with the increasing of catalyst amount. The highest methyl palmitate conversion (45.62 %) and yield of cetyl alcohol (36.44 %) were obtained for 15 g catalyst and 40 mL. min-1 H2 flow rate.
Highlights
PENDAHULUAN Setil alkohol merupakan salah satu alkohol lemak, suatu bahan yang cukup terkenal di dunia farmasi dan kosmetik
The catalytic hydrogenation of methyl palmitate to cetyl alcohol using Ni supported on activated natural zeolite catalysts (Ni/Zeolite) has been carried out
Catalytic hydrogenation was performed in stainless steel fixed bed reactor
Summary
PENDAHULUAN Setil alkohol (cetyl alcohol) merupakan salah satu alkohol lemak (fatty alcohol), suatu bahan yang cukup terkenal di dunia farmasi dan kosmetik. Setil alkohol dapat dibuat dengan bahan dasar lemak dan minyak yang mengandung asam palmitat. Dalam penelitian ini dilakukan optimasi reaksi hidrogenasi katalitik metil palmitat menjadi setil alkohol menggunakan katalis Ni/Zeolit dengan variasi laju alir gas hidrogen dan jumlah katalis, sehingga dapat diperoleh aktivitas katalitik yang maksimal.
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