Enhancement of biofuels production by means of co-pyrolysis of Posidonia oceanica (L.) and frying oil wastes: Experimental study and process modeling

Bioresource Technology
Kaouther ZaafouriMoktar Hamdi

Abstract

Energy recovery from lignocellulosic solid marine wastes, Posidonia oceanica wastes (POW) with slow pyrolysis responds to the growing trend of alternative energies as well as waste management. Physicochemical, thermogravimetric (TG/DTG) and spectroscopic (FTIR) characterizations of POW were performed. POW were first converted by pyrolysis at different temperatures (450°C, 500°C, 550°C and 600°C) using a fixed-bed reactor. The obtained products (bio-oil, syngas and bio char) were analyzed. Since the bio-oil yield obtained from POW pyrolysis is low (2wt.%), waste frying oil (WFO) was added as a co-substrate in order to improve of biofuels production. The co-pyrolysis gave a better yield of liquid organic fraction (37wt.%) as well as syngas (CH4,H2…) with a calorific value around 20MJ/kg. The stoichiometric models of both pyrolysis and co-pyrolysis reactions were performed according to the biomass formula: CαHβOγNδSε. The thermal kinetic decomposition of solids was validated through linearized Arrhenius model.

References

Jun 28, 2011·Bioresource Technology·Scott GriersonPushan Shah
Jun 6, 2013·Waste Management·Paul T Williams
Sep 17, 2014·Waste Management·Wen-Liang WangSheldon Q Shi

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Citations

Nov 7, 2020·Environmental Science and Pollution Research International·Aïda Ben Hassen TrabelsiFaycel Jamaaoui
Sep 28, 2017·Bioresource Technology·Gmar BensidhomIsmail Trabelsi

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