https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:32679 Tue 10 Jul 2018 15:38:12 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:45517 (10)zeo₍₉₀₎, Co₍₁₀₎zeo₍₉₀₎, Fe₍₁₀₎zeo₍₉₀₎, Mg₍₁₀₎zeo₍₉₀₎, Mn₍₁₀₎zeo₍₉₀₎ and Zn₍₁₀₎zeo₍₉₀₎ were investigated in the hydrodeoxygenation (HDO) of oleic acid (OA) to produce renewable diesel. The La₍₁₀₎zeo₍₉₀₎ catalyst showed a conversion of OA up to 99 % with 83 % C₁₅ and C₁₇ selectivity after the reaction at 350 °C for 2 h under 4 MPa H₂ pressure. The superior activity of La₍₁₀₎zeo₍₉₀₎ was attributed to the synergistic interaction between La-Si-Al, a sufficient amount of weak + medium acid sites and excellent textural properties (large pore diameter). Larger pore diameter of La₍₁₀₎zeo₍₉₀₎ is highly desirable as it will generate greater diffusion of bulky molecules, thereby improving the accessibility of the reactant and hence excellent catalytic activity. The vacuum distillation was used to purify the crude liquid product (CLP), producing high-quality diesel fractions mainly comprising C₁₄, C₁₅, and C₁₇ fractions.]]> Mon 29 Jan 2024 18:39:08 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47359 Mon 29 Jan 2024 18:35:13 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33872 Pseudokirchneriella subcapitata and Chlorella sp. MM3. The toxicity criteria included were: chlorophyll a content as a growth parameter and induction of enzyme activities linked to oxidative stress. Increase in concentrations of diesel or its WAF significantly increased toxicity towards growth, measured in terms of chlorophyll a content in both the algae. Activities of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POX) and catalase (CAT) in response to addition of diesel or diesel WAF to the microalgal cultures were dose-dependent. Diesel WAF was more toxic than diesel itself, suggesting that use of WAF may be more relevant for environmental risk assessment of diesel. The overall response of the antioxidant enzymes to toxicants’ stress followed the order: POX≥SOD>CAT. The present study clearly demonstrated the use of SOD, POX and CAT as suitable biomarkers for assessing diesel pollution in aquatic ecosystem.]]> Mon 21 Jan 2019 10:42:50 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:32736 Fri 20 Sep 2019 02:34:30 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33332 Fri 03 Dec 2021 10:34:32 AEDT ]]>