Production of biodiesel from macroalgae by supercritical CO2 extraction and thermochemical liquefaction |
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Authors: | Michele Aresta Angela Dibenedetto Maria Carone Teresa Colonna Carlo Fragale |
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Institution: | (1) Department of Chemistry, Campus Universitario, 70126 Bari, Italy |
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Abstract: | We compare two different techniques for the extraction of biodiesel from macroalgae: the thermochemical liquefaction and the
extraction using supercritical carbon dioxide (sc-CO2). The first allows to use wet material, while sc-CO2 requires dry material and uses moderate temperature and pressure so that it can be useful for the extraction of thermolabile
compounds which may decompose at the temperature at which thermal methos are carried out. In both cases the extracted oil
was characterized quantitatively and qualitatively. The novelty of the work is that in the literature the use of macroalgae
for the production of biodiesel has not so far been described, while they are used mainly as food or other purposes. |
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Keywords: | Biodiesel CO2 Biomass Macroalgae Thermochemical liquefaction Supercritical carbon dioxide |
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