Production of Biogasoline via Pyrolysis of Oleic Acid Basic Soaps

Authors

  • Endar Puspawiningtiyas Department of Chemical Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, West Java, Indonesia
  • Tirto Prakoso Department of Chemical Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, West Java, Indonesia
  • Meiti Pratiwi Department of Bioenergy and Chemurgy, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, West Java, Indonesia
  • Subagjo Subagjo Department of Chemical Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, West Java, Indonesia
  • Tatang Hernas Soerawidjaja Department of Bioenergy and Chemurgy, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, West Java, Indonesia

DOI:

https://doi.org/10.5614/j.eng.technol.sci.2022.54.3.11

Keywords:

biohydrocarbon, gasoline, metal soap, oleic acid, pyrolysis

Abstract

In this study, an investigation on the effect of the Ca/Mg/Zn mixing ratio on gasoline-range hydrocarbon production by oleic basic soap pyrolysis was carried out. The ratios of calcium to magnesium used were 15%, 35%, 50%, 65%, and 85% with constant Zn. Oleic basic soap was obtained by saponification with the modified fusion method. Pyrolysis experiments were carried out at 450 C using a semi-continuous reactor with a feed flow rate of 5 g/15 min. The process produced three fractions, i.e., gas, solid, and liquid (bio-hydrocarbon + water). The gas products were characterized by GC-TCD, and the results showed the presence of carbon dioxide, hydrogen, nitrogen, oxygen, and methane. Based on the GC-FID and FT-IR results, the bio-hydrocarbon comprised mainly homologous hydrocarbon from carbon number C7 to C19 containing n-alkanes, alkenes, various iso-alkanes, and some oxygenated compounds. All calcium ratios in the oleic basic soap produced hydrocarbon in the range of gasoline (C7-C11) as the dominant product. The maximum yield of gasoline (74.86%) was achieved at 15% calcium.

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Author Biography

Tirto Prakoso, Department of Chemical Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, West Java, Indonesia

Biodiesel, Biofuel, Oleochemical, Biogasoline, Bioavtur, Green diesel.

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Published

2022-05-31

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