Poboljšanje gorivnog potencijala otpadne biomase primenom hidrotermalne karbonizacije Naučni rad
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Poslednjih decenija masovna eksploatacija fosilnih goriva dovela je do sve veće potražnje za proizvodnjom energije iz obnovljivih izvora. Hidročađi dobijene hidrotermalnom karbonizacijom (engl. hydrothermal carbonization, HTC) otpadne biomase poseduju veliki potencijal kao biogorivo. U ovom radu su zato hidrotermalno karbonizovani oklasak kukuruza, listove paulovnije i kominu masline na različitim temperaturama (180, 220 i 260 oC). Glavni cilj ovog rada jeste uporedna procena uticaja HTC uslova na strukturu i gorivne karakteristie dobijenih proizvoda. Dobijeni rezultati su pokazali da se prinosi hidročađi značajno smanjuju sa porastom temperature u svim uzorcima. Sadržaj C i gornje toplotne moći rastu i dostižu najviše vrednosti u hidročađima dobijenim na 260°C, dok se sadržaj isparljivih materija smanjuje. Dalje, Van Krevelenov dijagram ukazuje da je tokom HTC procesa postignuta transformacija sirovine u proizvode slične lignitu. Naime, rezultati su pokazali da procesi dehidratacije i dekarboksilacije izazivaju intenzivnu transformaciju biomase i da hidročađi dobijene na višim temperaturama imaju značajno poboljšana gorivna svojstva i manji sadržaj isparljivih materija u poređenju sa polaznom sirovinom.
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