Authors:
Junifa Layla Sihombing
1
;
2
;
Herlinawati
1
;
Asep Wahyu Nugraha
1
;
Ahmad Nasir Pulungan
1
;
Moondra Zubir
1
;
Tiamina Nasution
1
;
Ary Anggara Wibowo
3
and
Saharman Gea
4
Affiliations:
1
Department of Chemistry, Universitas Negeri Medan, Jl. Willem IskandarPasar V Medan Estate, Medan, Indonesia
;
2
Postgraduate School, Department of Chemistry, Universitas Sumatera Utara, Jl. Bioteknologi No. 1, Medan, Indonesia
;
3
College of Science, Energy Change Institute, College of Science Australian National University, ANU, Australia
;
4
Department of Chemistry, Universitas Sumatera Utara, Jalan Bioteknologi Padang Bulan, Medan, Indonesia
Keyword(s):
Rubber Seed Oil, Hydrocracking, Catalyst, Impregnation, Biofuel
Abstract:
This research was aimed to produce biofuel fraction from rubber seed oil by using synthetic Zeolite Y (ZY), Co/ZY and CoMo/ZY catalyst. The insertion of metal used a wet impregnation method. Furthermore, in or-der to produce a good catalyst, the oxidation and reduction process at 500oC using oxygen and nitrogen gas-es at approximately 2 hours were performed. Then, the effect of addition of ZY, Co/ZY and CoMo/ZY had been investigated at catalytic hydrocracking using metyl ester fatty acid (MEFA). The reaction was con-ducted at 450oC with ratio of catalyst:feed of 1:4 and 20 mL/sec with hydrogen gas flow. Moreover, the characterization of catalyst depicted that no significant changes in wavenumber of TO4 groups and a crys-tallinity of catalyst. Then, the crystal system of ZY and Co/ZY was indicated as monoclinic while Co-Mo/ZY was revealed as triclinic. The surface area, pore volume and mean pore of catalysts revealed an in-crease trend as a result of Co and Mo impregnation. These tren
ds have also been proven with SEM analysis which was shown an equal spreading of metals in the catalysts. Furthermore, the highest result of catalytic performance among catalysts was shown by CoMo/ZY with 59.45% of bio-gasoline. To sum up, the im-pregnation of Co and CoMo in Zeolit Y depicted a well-effect on its selectivity into bio-gasoline product.
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