Abstract

Enteromorpha prolifera (EP) is a renewable energy source that was evaluated as a feedstock to produce bio-oil by thermal cracking. Harvesting EP for bio-oil production will also reduce the damage of green tide on ocean ecology. Effects of reaction temperature between 220 and 380°C and reaction time between 20 and 80min on the bio-oil yield and gas and solid thermal cracking products were investigated. Effects of solvents (i.e., ethanol and vacuum gas oil (VGO)) on the yields of bio-oil, gas and solid were also studied. EP, VGO and products from thermal cracking were analyzed by elemental analysis, gas chromatography–mass spectra and gas chromatography. Results indicate that thermal cracking of EP with VGO (EP/VGO) gave rise to the maximum bio-oil yield of 90.5% at 300°C with a reaction time of 30min. Higher heating values and elemental analysis demonstrate that this process has the potential for industrial production of bio-oil from EP.

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