Valorization of Maize Processing Industrial Waste as Activated Magnetic Biochar Catalyst through Pyrolysis for Biodiesel Production: Detailed Investigations on Economic Profitability and Environmental Emissions

Process Safety and Environmental Protection, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Application of computational technologies for transesterification of waste cooking oil into biodiesel

Biomass and Bioenergy, Год журнала: 2025, Номер 194, С. 107620 - 107620

Опубликована: Янв. 18, 2025

Язык: Английский

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Optimization and performance prediction of carbon dioxide adsorption on chitosan/activated carbon/epichlorohydrin composite materials using Box–Behnken design and artificial neural network approaches

Case Studies in Chemical and Environmental Engineering, Год журнала: 2025, Номер unknown, С. 101144 - 101144

Опубликована: Фев. 1, 2025

Язык: Английский

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Response surface optimization for biodiesel production from chicken fat via transesterification process over CaO-CeO2 catalyst

Sustainable Chemistry and Pharmacy, Год журнала: 2025, Номер 44, С. 101967 - 101967

Опубликована: Фев. 25, 2025

Язык: Английский

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Biodiesel Production Using K–Sr/CaO and CaO Catalysts Derived from Eggshells by Canola Oil Transesterification

ACS Omega, Год журнала: 2025, Номер 10(7), С. 6827 - 6838

Опубликована: Фев. 16, 2025

Eggshell calcination at 900 °C was used to produce CaO, which afterward impregnated with K and Sr using KNO3 SrCl2·6H2O precursors, diluted in methanol, improve basicity, stability, catalytic activity. The CaO doping K–Sr affected the final catalyst's textural properties, alkalinity, basic strength due K+ Sr2+ size incorporation into lattice. SEM images elemental mapping showed a uniform distribution for K–Sr/CaO catalyst. However, carbonization modified number of sites. fresh catalysts presented 92.5% 46% biodiesel yields, respectively. In third reaction cycle, yield dropped approximately 72% 21%, this sense, method increased sites catalyst, providing higher resistance leaching compared Finally, enhanced conditions were 7.0 wt % catalyst loading, 12.5:1 methanol/oil molar ratio, 70 °C, 1 h time.

Язык: Английский

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An efficient Mo20/SiO2-La transesterification catalyst: the promoting role of La on anti-carbon deposition

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115485 - 115485

Опубликована: Янв. 1, 2025

Язык: Английский

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Sensitivity analysis and optimization of the whole process of continuous catalytic reforming for Persian gulf star oil company using an optimized data-driven model with tuned parameters

Chemical Product and Process Modeling, Год журнала: 2025, Номер 20(1), С. 79 - 100

Опубликована: Фев. 1, 2025

Abstract This paper applies an existing advanced model to improve key outputs in the continuous catalytic reforming (CCR) process for Persian Gulf Star Oil Company. Using tools like Aspen Custom Modeler and Plus, we focus on optimizing two main results: Research Octane Number (RON) yield. A design of experiments was conducted examine effects input variables, including reactor temperatures hydrogen-to-hydrocarbon (H₂/HC) ratio, through 256 simulations. Various data fitting methods, Response Surface Methodology (RSM), Radial Basis Function Network (RNLOOCV), Artificial Neural Networks (ANN), were applied describe behavior. The Akaike Information Criterion (AIC)-optimized ANN demonstrated best performance, offering a balanced approach between accuracy complexity. sensitivity analysis revealed that increasing improves RON but reduces yield due enhanced cracking reactions. H₂/HC ratio had minimal impact yield, primarily serving limit catalyst coke formation. Optimization using genetic algorithm confirmed optimal can be achieved within specific temperature ranges. results provide insights enhancing CCR efficiency refinery profitability.

Язык: Английский

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Valorization of Biodiesel Into Bio‐Based Plasticizers: Optimization of Epoxidized Fatty Acid Isobutyl Ester Production Using Response Surface Methodology and Artificial Neural Network

European Journal of Lipid Science and Technology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 9, 2025

ABSTRACT Biodiesel is a promising green chemical feedstock due to its renewability and sustainability. In this study, bio‐based plasticizers, epoxidized fatty acid isobutyl esters (Ep‐FABEs), were prepared using biodiesel as through combination of transesterification the formic autocatalytic method. The effects reaction temperature, time, FA/C═C molar ratio, H 2 O /C═C ratio on conversion oxirane (RCO) during epoxidation process investigated central composite design. Both response surface methodology (RSM) artificial neural network (ANN) models developed model optimize process. Comparative analysis revealed that ANN demonstrated superior predictive capabilities, with lower mean squared error (MSE), absolute (MAE), higher coefficient determination ( R ) compared RSM model. predicted an RCO 92%, which was closely aligned experimental value 91% under optimized conditions (reaction temperature 66°C, time 6.7 h, 0.35, 2.70). Additionally, physico‐chemical properties Ep‐FABEs further analyzed. These findings provide valuable insights into production plasticizers feedstock.

Язык: Английский

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The potential of waste avocado-banana fruit peels catalyst in the transesterification of non-edible Mafura kernel oil: Process Optimization by Taguchi

Cleaner Chemical Engineering, Год журнала: 2025, Номер 11, С. 100158 - 100158

Опубликована: Фев. 23, 2025

Язык: Английский

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Valorization of oleochemical waste as feedstock for biodiesel production using industrial ash waste magnetic-based catalyst

International Journal of Green Energy, Год журнала: 2025, Номер unknown, С. 1 - 15

Опубликована: Фев. 27, 2025

Biodiesel was synthesized directly from waste oils in a single-step process, eliminating the need for pre-treatment. A solid base catalyst successfully using Spent Bleaching Earth (SBE) as primary support material through wet impregnation method. The synthesis process involved incorporation of potassium hydroxide (KOH) and ammonium ferrous sulfate hexahydrate (NH4)2Fe(SO4)2.6 h2O) to enhance catalytic performance. mixture magnetized under an air atmosphere furnace. Under optimized conditions, transesterification employing 0.15 g magnetic K2SO4/Fe2O3-SBE700 resulted 78.47% biodiesel yield bleached oil. utilized 1:22 ratio oil methanol conducted at 80°C 2 hours. demonstrated excellent activity could be easily recovered separation K2SO4/Fe2O3-SBE700. Physicochemical properties catalyst, oil, were analyzed techniques such BET, FESEM-EDX, TGA, XRD. XRD analysis revealed sharp well-defined peaks indicating presence crystalline structures characteristic K2SO4 (arcanite) Fe2O3 (hematite). This study effectively inorganic components within its associated direct production, thus minimizing generation.

Язык: Английский

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