Potential biofuels from liquefied industrial wastes – Preliminary evaluation of heats of combustion and van Krevelen correlations
2016
Galhano dos Santos, Rui | Bordado, João Carlos | Mateus, Maria Margarida
This study aimed at the evaluation of industrial residues/wastes such as pinewood sawdust, swine manure, and paper sludge to produce liquefied products that can be used as potential biofuels. The afforded products, liquefied pinewood sawdust, liquefied paper sludge and liquefied swine manure were obtained in good yield and subject to chemical analysis. The bio-oils have presented higher carbon and hydrogen content when compared to their precursors while a significant decreased in moisture was observed. Plotting van Krevelen diagram demonstrated that the bio-oils are more closely related to hydrocarbon than to its primitive, raw material. This study also showed a strong potential of LPS to be used as a bio-oil, since it fulfilled two out of the three criteria needed to be considered as a bio-petroleum product.
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