The 2-phase Chemlali olive pomace is selected as substrate for chemical treatment. Treatment of "alperujo" using water bath or autoclave apparatus was carried out. A high amount of hydroxytyrosol was obtained using autoclave apparatus.
The pyrolysis of LPW was carried out in a laboratory fixed-bed reactor at final temperature of 300°C, 400°C and 500°C with an incremental heating rate of 10°C/min, under N2 atmosphere. The maximum yields of bio-oil, biochar and gas were 16.66 wt.% (at 400°C), 66.89 wt.% (300°C) and 54.6 wt.% (500°C), respectively. The recovered biochar FTIR characterization reveals that it is a promising precursor to produce carbon materials, biofertilizer and for solid fuel applications. The bio-oil chemical characterization (GC-MS and FTIR analyzes) shows its richness with innovative compounds such as squalene, d-limonene, ß-Sitosterol and phenol, suitable for applications agriculture, biochemical and pharmaceutical industries. The pyrolytic oil presents also good properties, suitable for its use as an engine fuel or as a potential source for synthetic fuels. The recovered pyrolytic gas has a maximum calorific value around 12 MJ/kg with an average composition of CO (up to 75.87 vol.%), of CH4 (up to 5.25 vol.%) and of CnHm (up to 1.48 vol.%). The results could be applied by citrus 2 farmers and agri-food industrials for large scale application to ensure a sustainable waste management of their citrus by-products and to guarantee economic benefits.
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