Selectivity of an Active Natural Zeolite in Catalytic Conversion Process of <i>Bangkirai, Kruing</i> and <i>Kamper</i> Woods Biofuel to Gasoline Fraction

• Main Author: Wega Trisunaryanti
• Format: Article
• Language: English
• Published: Universitas Gadjah Mada 2010-06-01
• Series: Indonesian Journal of Chemistry
• Subjects: active natural zeolite; selectivity; biofuel; gasoline fraction
• Online Access: https://jurnal.ugm.ac.id/ijc/article/view/21959

The selectivity of an active natural zeolite (ZAAH) in catalytic conversion process of Bangkirai, Kruing and Kamper woods biofuels has been studied. The ZAAH catalyst was prepared from a natural zeolite (ZA) treated with acids solution (1% HF and 6M HCI) and hydrothermal then calcined at 500 °C and oxidized at 400 °C under nitrogen and oxygen gas stream, respectively. Characterizations of the catalysts including Si/Al ratio and acidity were determined by atomic adsorption spectroscopy (AAS) and ammonia gas adsorption method, respectively. The conversion process was carried out in a flow reactor system at 400 °C, under N2 stream (20 mL/min). The biofuel was vaporized from the pyrolysis zone to the catalytic reactor. A liquid product was covered and analyzed by gas chromatograph (GC) and that connected with mass spectroscopy (GC-MS). The characterization results showed that the Si/AI ratio and acidity of the ZAAH were higher than that of the ZA catalyst. The GC-MS data showed that the highest product selectivity was 2,4-dimethyl heptane and 1,2-dimethyl benzene. The total product selectivity using the ZAAH catalyst (bangkirai = 68.10%; kruing = 54.76%; kamper = 50.72%) was higher than that of the ZA catalyst (bangkirai = 39.24%; kruing = 44.38%; kamper = 46.11%).