https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40889 Tue 19 Jul 2022 15:55:15 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:18523 Sun 28 Jun 2015 11:13:19 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:27240 Sat 24 Mar 2018 07:29:12 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:26180 Sat 24 Mar 2018 07:24:10 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:25039 Eucalyptus pulverulenta (EP) was studied using a fixed-bed reactor in the temperature range of 300-500 °C and the bio-oil composition was analyzed by using a GC-MS. The results showed that the highest bio-oil yield of 38.45 wt% was obtained at 400 °C in the presence of Na₂CO₃, and the concentration of methoxyaromatics reached the maximum value of 63.4%(area) in the bio-oil. The major methoxyaromatics identified in bio-oil were guaiacol, syringol, 4-ethyl-2-methoxy phenol, and 1,2,4-trimethoxybenzene. The analysis of gaseous products indicated that CO₂ was the major gas at low-temperatures and concentrations of H₂ and CH₄ increased with increasing pyrolysis temperature. Na₂CO₃ promoted the formation of methoxyaromatics, while NaOH seems to have enhanced the formation of phenolics. The mechanism of the formation of methoxyaromatics during pyrolysis of EP was proposed.]]> Sat 24 Mar 2018 07:10:47 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:23235 3, and C-O functional groups in char samples decreased significantly after pyrolysis.]]> Sat 24 Mar 2018 07:10:39 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39656 Eucalyptus pulverulenta (EP) branch was investigated in the temperature range of 300-500℃. The results showed that 400℃ was the optimum temperature to achieve the highest yield of bio-oil (28.4 wt.%), where the concentration of methoxy aromatics in the biooil reached to 70.4 area%. The addition of Na₂CO₃ and K₂CO₃ has led to increases in the bio-oil yields. During the microwave pyrolysis of EP, Na₂CO₃ and K₂CO₃ increased the selectivity of methoxy aromatics in the bio-oil, while NaOH showed a negative impact on the selectivity of methoxy aromatics. Based on the findings of the study, the reaction pathways of methoxy aromatic compound formation during pyrolysis were proposed.]]> Fri 17 Jun 2022 13:54:06 AEST ]]>