Sinteza biobenzina katalitičkim krekovanjem korišćenog ulja za kuvanje katalizovanim CaO na bazi ljuske kokošjeg jajeta impregniranog na γ-Al2O3 Naučni rad
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Cilj ovog istraživanja je sinteza biobenzina iz korišćenog ulja za kuvanje korišćenjem katalizatora na bazi ljuske kokošjeg jajeta impregniranog sa γ-Al2O3 putem katalitičkog krekovanja, kao i karakterizacija finalnih proizvoda. Optimizacija krekovanja je sprovedena variranjem temperature kalcinacije katalizatora (650, 750 i 850 °C) i koncentracije katalizatora (1, 2 i 3 mas.%). Faze ovog istraživanja bile su (1) karakterizacija korišćenog ulja za kuvanje (gustina, viskoznost, indeks prelamanja i jodni broj), (2) sinteza CaO/γ-Al2O3, (3) katalitičko krekovanje korišćenog ulja za kuvanje korišćenjem sintetisanog katalizatora i (4) karakterizacija i identifikacija biobenzina. Rezultati su pokazali da su optimalni uslovi za katalitičko krekovanje dobijeni na temperaturi kalcinacije od 650 °C. Sintetizovani biobenzin ima sledeće karakteristike, tj. gustinu od 0,776 g ml-1, viskoznost od 1,84 mm2 s-1, indeks prelamanja od 1,43 i jodni broj od 22,85 g I2 na 100 g. Sintetizovani biobenzin sadrži jedinjenja alkana, alkena i karboksilnih kiselina, C2-C19. U ovom sastavu dominirala su jedinjenja koja pripadaju biobenzinu (C5-C12) u iznosu od 94,5 mas.%, što je potvrđeno analizama gasnom hromatografijom sa masnom spektrometrijom.
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