Optimization of bio-diesel production from soybean and wastes of cooked oil: Combining dielectric microwave irradiation and a SrO catalyst

Miri Koberg, Riam Abu-Much, Aharon Gedanken

Research output: Contribution to journalArticlepeer-review

79 Scopus citations

Abstract

This work offers an optimized method in the transesterification of pristine (soybean) oil and cooked oil to bio-diesel, based on microwave dielectric irradiation as a driving force for the transesterification reaction and SrO as a catalyst. This combination has demonstrated excellent catalytic activity and stability. The transesterification was carried out with and without stirring. According to 1H NMR spectroscopy and TLC results, this combination accelerates the reaction (to less than 60s), maintaining a very high conversion (99%) and high efficiency. The catalytic activity of SrO under atmospheric pressure in the presence of air and under the argon atmosphere is demonstrated. The optimum conversion of cooked oil (99.8%) is achieved under MW irradiation of 1100W output with magnetic stirring after only 10s. The optimum method decreases the cost of bio-diesel production and has the potential for industrial application in the transesterification of cooked oil to bio-diesel.

Original languageEnglish
Pages (from-to)1073-1078
Number of pages6
JournalBioresource Technology
Volume102
Issue number2
DOIs
StatePublished - Jan 2011

Keywords

  • Bio-diesel
  • Catalyst
  • Cooked oil
  • Microwave irradiation
  • Transesterification

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