Clean biodiesel production approach using waste swan eggshell derived heterogeneous catalyst: An optimization study employing Box-Behnken-response surface methodology

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 220, P. 119181 - 119181

Published: July 26, 2024

Language: Английский

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Application of LaNi1-xCoxO3 Perovskite Structure Catalyst for Conversion of Waste Vegetable Cooking Oil to Biodiesel

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 114040 - 114040

Published: Sept. 3, 2024

Language: Английский

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Effect of Alumina and Bio‐Based Calcium Oxide Nanoadditives on Reduction of Emissions and Performance Improvement in a Common Rail Direct Injection Diesel Engine Fueled with B20 Blend of Waste Cooking Oil Biodiesel

Energy Technology, Journal Year: 2024, Volume and Issue: 12(5)

Published: Feb. 4, 2024

This experimental study investigates the performance, combustion, and emission characteristics of a common rail direct injection diesel engine running on used cooking biodiesel prepared through transesterification. The nanoparticles calcium oxide (CaO) alumina (Al 2 O 3 ) are mixed with B20 blend using an ultrasonicator to create homogeneous mixture. following five fuel series in study: three different nanoparticle ppms blended form Al CaO 90 ppm, + 60 30 ppm. enhanced surface area volume ratio enhances degree mixing chemical reactivity during combustion. Also, engines result reduced specific consumption. test ppm (90 dispersion) results 9% 11% increase brake thermal efficiency compared B20, respectively. presence has initiated combustion slightly earlier due its improved ignition qualities that permit catalytic shorter delay. In comparison CaO90 lowers NOx emissions by 18% 21%, carbon monoxide 40% 43%, hydrocarbon 35% 40%, smoke 24% 29%,

Language: Английский

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Using NaOH@Graphene oxide-Fe3O4 as a magnetic heterogeneous catalyst for ultrasonic transesterification; experimental and modelling

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: June 22, 2024

Abstract Burning fossil fuels causes toxic gas emissions to increase, therefore, scientists are trying find alternative green fuels. One of the important is biodiesel. However, using eco-friendly primary materials a main factor. Sustainable catalysts should have high performance, good activity, easy separation from reaction cells, and regenerability. In this study, solve mentioned problem NaOH@Graphene oxide-Fe 3 O 4 as magnetic catalyst was used for first time generate biodiesel waste cooking oil. The crystal structure, functional groups, surface area morphology were studied by XRD, FTIR, BET, FESEM techniques. response methodology based central composite design (RSM-CCD) production via ultrasonic technique. maximum yield 95.88% in following operation: 10.52:1 molar ratio methanol oil, weight 3.76 wt%, voltage 49.58 kHz, 33.29 min. physiochemical characterization ASTM standard. standstill free fatty acid due five cycle’s regeneration. kinetic study results possess agreement with first-order kinetics well activation energy Arrhenius constant 49.2 kJ/min 16.47 * 10 min −1 , respectively.

Language: Английский

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Metal oxide-based heterogeneous catalysts for biodiesel production

Next Sustainability, Journal Year: 2023, Volume and Issue: 2, P. 100012 - 100012

Published: June 1, 2023

The increasing consumption of fossil fuels and petroleum products leads to high prices, depletion natural resources, increased global warming. Therefore, there is a critical need for an alternative, greener fuel that could replace fuels. Biodiesel derived from plant-based oil or biomass renewable non-toxic energy source has emerged as alternative diesel. Today, biodiesel may be manufactured range feedstock using variety catalysts recovery processes thanks advances in catalytic chemistry technology. Recently, metal oxide-based heterogeneous have been promising materials the (trans)esterification reactions oils produce biodiesel. review briefly describes recent based on oxides production. pros cons various techniques mechanism synthesis by are discussed understand topic better. Lastly, scope future research challenges also presented.

Language: Английский

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Controlled and rapid microreactor-assisted hydrolysis of sesame protein by a novel nanobiocatalyst; immobilized alcalase over activated sol–gel magnetic nanosupport

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153900 - 153900

Published: July 10, 2024

Language: Английский

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Ethanol-Based Transesterification of Rapeseed Oil with CaO Catalyst: Process Optimization and Validation Using Microalgal Lipids

Catalysis Letters, Journal Year: 2025, Volume and Issue: 155(2)

Published: Jan. 18, 2025

Abstract Microalgal oil has been increasingly studied as a feedstock for biodiesel production through transesterification reactions using heterogeneous catalysts. This route offers several benefits, including catalyst reuse, ease of separation, and improved safety, while addressing environmental technical issues associated with homogeneous acids bases. Most studies use methanol the transesterification, few have investigated microalgal ethanol. Beyond benefits microalgae compared to plant-based biomass, replacing bioethanol is advantageous due its lower cost reduced toxicity. If emulsion issue between produced ethanol resolved, could be more environmentally friendly alternative green fuel production. study evaluated various metal oxides catalysts rapeseed both reagent solvent improve miscibility. From screening, CaO showed highest fatty acid ethyl esters yield this was then tested at different reaction times in two systems (round-bottom flask autoclave reactor) ( Scenedesmus sp.) oil. The 86.0% 81.3% 114:1 ethanol: molar ratio an reactor. work addresses limited on demonstrating effectiveness catalyst. It highlights potential greener, cost-effective Graphical

Language: Английский

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Microwave Assisted Combustion Design and Performance Screening of NiM2O4 (M: Zn and Mn) Spinels Enhanced by Lamellar Porous Graphene Oxide Nanosheets for Biodiesel Production

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116263 - 116263

Published: March 1, 2025

Language: Английский

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Microchannel reactor technologies for biodiesel production

Kataliz v promyshlennosti, Journal Year: 2025, Volume and Issue: 25(2), P. 3 - 17

Published: March 27, 2025

Recently, due to the depletion of hydrocarbon fuel reserves, considerable attention has been paid development effective methods for synthesis biofuel and biodiesel fuel, including from renewable sources raw materials. However, high cost production requires new technological approaches. This led active in chemistry chemical technology use microchannel technologies fuel. The (MC) reactors contributes intensification safety processes, which leads economic environmental benefits industry. miniature dimensions MC make it possible save materials during their manufacture, as well resources operation. increased values heat mass transfer channels contribute a significant increase productivity reactors, exceeding classical industry by 1-2 orders magnitude. review analyzes literature 2020-2024 on Particular advantages disadvantages main trends development.

Language: Английский

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Process intensification in biodiesel production using unconventional reactors

Fuel, Journal Year: 2024, Volume and Issue: 380, P. 133263 - 133263

Published: Sept. 24, 2024

Language: Английский

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