Box–Behnken design-based optimization for biodiesel production from waste cooking oil using Mahogany (Swietenia macrophylla) fruit shell derived activated carbon as a heterogeneous base catalyst
“…BBD was used to obtain insight into the interaction of the transesterification reaction's process parameters that lead to maximum response. The effect of 3 reaction variables-A: catalyst concentration (wt.%), B: methanol/oil mole ratio (mol/mol), and C: reaction time (min)-on the response transesterification yield was determined using regression and graphical analysis [7]. Table 1 displays the design of experiments (DOE) employed by the BBD model.…”
In order to produce biodiesel from waste palm oil (WPO), a calcium oxide (CaO) catalyst was developed using waste powder chalk and tested as a transesterification catalyst for the biofuel process. Generating CaO catalyst required a calcination method that was carried out at 900 °C for 3 h. Further investigation was conducted using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDX). The transesterification procedure was carried out applying response surface methodology (RSM) based on box-Behnken design (BBD). The BBD experimental design was employed, and the 3 process parameters investigated were catalyst concentration (3-5 wt.%), methanol/oil mole ratio (12-18), and reaction time (60-120 min). Experiments conducted under the optimal conditions predicted yielded over 97%, which was in excellent agreement with the expected value (a relatively small margin of error). This study demonstrates that WPO and waste chalk as low-cost feedstock are excellent sources of raw material for biodiesel production, and that a sustainable generation of biodiesel can be accomplished by optimizing process variables.
“…BBD was used to obtain insight into the interaction of the transesterification reaction's process parameters that lead to maximum response. The effect of 3 reaction variables-A: catalyst concentration (wt.%), B: methanol/oil mole ratio (mol/mol), and C: reaction time (min)-on the response transesterification yield was determined using regression and graphical analysis [7]. Table 1 displays the design of experiments (DOE) employed by the BBD model.…”
In order to produce biodiesel from waste palm oil (WPO), a calcium oxide (CaO) catalyst was developed using waste powder chalk and tested as a transesterification catalyst for the biofuel process. Generating CaO catalyst required a calcination method that was carried out at 900 °C for 3 h. Further investigation was conducted using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDX). The transesterification procedure was carried out applying response surface methodology (RSM) based on box-Behnken design (BBD). The BBD experimental design was employed, and the 3 process parameters investigated were catalyst concentration (3-5 wt.%), methanol/oil mole ratio (12-18), and reaction time (60-120 min). Experiments conducted under the optimal conditions predicted yielded over 97%, which was in excellent agreement with the expected value (a relatively small margin of error). This study demonstrates that WPO and waste chalk as low-cost feedstock are excellent sources of raw material for biodiesel production, and that a sustainable generation of biodiesel can be accomplished by optimizing process variables.
“…Moreover, the relationship between response values and parameters was studied by the least square multiple regression method. The second-order polynomial was fitted to establish the model ( Kumar and Singh, 2019 ; Hossain et al, 2021 ). Where Y represents the response prediction value, β 0 refers the intercept term, β 1 to β 14 are the linear effect coefficient, the quadratic coefficient of the crossover and square effect, and ε implies the error.…”
Efficient valorization of renewable liquid biomass for biodiesel production using the desirable biomass-based catalysts is being deemed to be an environmentally friendly process. Herein, a highly active biomass-based solid acid catalyst (SiO2@Cs-SO3H) with renewable chitosan as raw material through sulfonation procedure under the relatively mild condition was successfully manufactured. The SiO2@Cs-SO3H catalyst was systematically characterized, especially with a large specific surface area (21.82 m2/g) and acidity (3.47 mmol/g). The catalytic activity of SiO2@Cs-SO3H was evaluated by esterification of oleic acid (OA) and methanol for biodiesel production. The best biodiesel yield was acquired by Response Surface Methodology (RSM). The optimized reaction conditions were temperature of 92°C, time of 4.1 h, catalyst dosage of 6.8 wt%, and methanol to OA molar ratio of 31.4, respectively. In this case, the optimal experimental biodiesel yield was found to be 98.2%, which was close to that of the predicted value of 98.4%, indicating the good reliability of RSM employed in this study. Furthermore, SiO2@Cs-SO3H also exhibited good reusability in terms of five consecutive recycles with 87.0% biodiesel yield. As such, SiO2@Cs-SO3H can be considered and used as a bio-based sustainable catalyst of high-efficiency for biodiesel production.
“…The advantages of Camellia shell activated carbon mainly include its high yield and low cost, as well as the fact that it provides a guaranteed source of raw materials; Camellia shell activated carbon also shows high electrical conductivity and can be used as electrodes. Activated carbon has been obtained from many other plant materials, and these activated carbons, such as macadamia nut shell ( Wang et al, 2002 ), Terminalia catappa shell ( Inbaraj and Sulochana, 2006 ), peanut shell ( Wu et al, 2013 ), durian fruit shell ( Tey et al, 2016 ), baobab fruit shell ( Vunain et al, 2017 ), Aegle marmelos Correa fruit shell ( Sivarajasekar et al, 2018 ), and Swietenia macrophylla fruit shell ( Hossain et al, 2021 ), show high application prospects.…”
Section: Utilization Of
C Oleifera
Shellmentioning
Camellia oleifera is a woody oil tree species unique to China that has been cultivated and used in China for more than 2,300 years. Most biological research on C. oleifera in recent years has focused on the development of new varieties and breeding. Novel genomic information has been generated for C. oleifera, including a high-quality reference genome at the chromosome level. Camellia seeds are used to process high-quality edible oil; they are also often used in medicine, health foods, and daily chemical products and have shown promise for the treatment and prevention of diseases. C. oleifera by-products, such as camellia seed cake, saponin, and fruit shell are widely used in the daily chemical, dyeing, papermaking, chemical fibre, textile, and pesticide industries. C. oleifera shell can also be used to prepare activated carbon electrodes, which have high electrochemical performance when used as the negative electrode of lithium-ion batteries. C. oleifera is an economically valuable plant with diverse uses, and accelerating the utilization of its by-products will greatly enhance its industrial value.
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