Non-catalytic cracking of jojoba oil to produce fuel and chemical by-products

Evguenii Kozliak, Robert Mota, David Rodriguez, Paul Overby, Alena Kubátová, Danese Stahl, Vadoud Niri, Gregory Ogden, Wayne Seames

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

Thermal non-catalytic cracking of jojoba oil, a non-triacylglyceride-based wax produced by the desert plant, Simmondsia chinensis, was compared to that of triacylglyceride-based soybean oil. Optimum liquid product yield was produced at a higher temperature for jojoba oil compared to soybean oil but at similar reaction pressure and residence time. At optimum conditions, jojoba oil generated a similar gas phase fraction as soybean oil while the liquid product contained a smaller quantity of undesirable polyaromatic and non-GC-elutable (low volatility high-MW) products, with nearly 90% of the cracking liquid product being GC quantifiable. This product included a mixture of linear saturated short-chain fatty acids whose size distribution peaked at C 10. It also included alkanes (predominantly linear) that peaked at C 7-C 8, and smaller concentrations of alkenes, aromatics, and polyaromatic hydrocarbons. Thus, jojoba oil is an excellent renewable feedstock for the production of replacements for petroleum-derived transportation fuels and chemicals.

Original languageEnglish (US)
Pages (from-to)386-392
Number of pages7
JournalIndustrial Crops and Products
Volume43
Issue number1
DOIs
StatePublished - May 1 2013
Externally publishedYes

Keywords

  • Biofuel
  • Hydrocarbons
  • Jojoba oil
  • Thermal cracking

ASJC Scopus subject areas

  • Agronomy and Crop Science

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    Kozliak, E., Mota, R., Rodriguez, D., Overby, P., Kubátová, A., Stahl, D., Niri, V., Ogden, G., & Seames, W. (2013). Non-catalytic cracking of jojoba oil to produce fuel and chemical by-products. Industrial Crops and Products, 43(1), 386-392. https://doi.org/10.1016/j.indcrop.2012.07.042