
Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104936 - 104936
Published: April 1, 2025
Language: Английский
Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104936 - 104936
Published: April 1, 2025
Language: Английский
Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(9), P. 12722 - 12747
Published: Jan. 23, 2024
Abstract Biodiesel, a renewable and sustainable alternative to fossil fuels, has garnered significant attention as potential solution the growing energy crisis environmental concerns. The review commences with thorough examination of feedstock selection preparation, emphasizing critical role quality in ensuring optimal biodiesel production efficiency quality. Next, it delves into advancements applications, highlighting its versatility reduce greenhouse gas emissions dependence on fuels. heart focuses transesterification, key process production. It provides an in-depth analysis various catalysts, including homogeneous, heterogeneous, enzyme-based, nanomaterial exploring their distinct characteristics behavior during transesterification. also sheds light transesterification reaction mechanism kinetics, importance kinetic modeling optimization. Recent developments production, selection, optimization, sustainability, are discussed, along challenges related engine performance, emissions, compatibility that hinder wider adoption. concludes by need for ongoing research, development, collaboration among academia, industry, policymakers address pursue further research outlines specific recommendations future paving way widespread adoption source fostering cleaner more future.
Language: Английский
Citations
62Sustainable Energy Technologies and Assessments, Journal Year: 2024, Volume and Issue: 65, P. 103781 - 103781
Published: April 18, 2024
Language: Английский
Citations
25Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 183, P. 1258 - 1282
Published: Jan. 19, 2024
Language: Английский
Citations
20Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)
Published: Jan. 2, 2025
As the demand for sustainable energy sources intensifies, biodiesel emerges as a compelling renewable alternative to petroleum-based fuels. Leveraging waste cooking oil (WCO) feedstock not only offers an environmentally friendly fuel source but also addresses disposal issues. However, production from WCO faces challenges, particularly due its high free fatty acid (FFA) content, which can hinder efficient conversion and lead soap formation in traditional alkaline-catalysed processes. This study seeks overcome these challenges by developing optimizing bifunctional Ce/Mn(10:90)/γ-Al₂O₃ catalyst via incipient wetness impregnation (IWI) method. The catalyst's dual acidic basic active sites enable simultaneous esterification transesterification, enhancing efficiency high-FFA feedstocks. Various parameters were optimized, including calcination temperatures, loadings, reaction conditions such methanol-to-oil ratio, loading, temperature, time transesterification process. catalyst, calcined at 800 °C, achieved maximum triglyceride (TG) of 97% under optimal conditions. These determined be 10 wt% 1:24 temperature 65 3 h. is attributed basicity (1.543 mmol/g), large surface area (143 m2/g), small particle size (22 nm), collectively enhance catalytic performance. design thus robust solution into biodiesel, maximizing performance sustainability.
Language: Английский
Citations
2Fuel, Journal Year: 2025, Volume and Issue: 393, P. 134901 - 134901
Published: March 9, 2025
Language: Английский
Citations
2Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 186, P. 25 - 36
Published: March 30, 2024
Language: Английский
Citations
13Cleaner Engineering and Technology, Journal Year: 2024, Volume and Issue: 21, P. 100773 - 100773
Published: July 2, 2024
The greater demand for energy has led to a surge in the utilization of fossil fuels, resulting rapid depletion crude oil sources. Regrettably, this trend engendered significant negative environmental impact, primarily due release unwanted carbon emissions into atmosphere. Biodiesel been considered suitable substitute fuels owing its availability from renewable feedstock, less polluting, sustainable and high biodegradability. However, production biodiesel edible oils is very expensive food versus fuel competition feedstock. Therefore, non-edible such as rubber seed have feedstock their wide abundance different parts world. Rubber plantations are widely cultivated latex discarded seeds could be potential source production. Hence, review considers extraction seeds, free fatty acid compositions, physicochemical properties. It investigates explores variations various kinds catalysts that developed were examined; techno-economic analysis was discussed; merits challenges associated with use analyzed.
Language: Английский
Citations
13Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 185, P. 239 - 255
Published: March 6, 2024
Language: Английский
Citations
9Arabian Journal for Science and Engineering, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 13, 2025
Abstract Biodiesel is a sustainable fuel alternative that typically produced through transesterification process primarily employs homogeneous catalysts. However, they generate significant amounts of wastewater and are often non-\recyclable. This study aims to investigate the application heterogeneous blast furnace slag geopolymer catalyst for biodiesel production from animal fat. Central composite design was employed optimise process, considering four key variables: methanol-to-oil ratio (20–50 wt.%), reaction time (3–7 h), temperature (30–70 °C) catalyst-to-oil (3–15 wt.%). The characterised using Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction. These analyses confirmed geopolymerisation revealed no modifications structure following reaction. RSM optimisation resulted in 97.436% yield, which achieved at constant stirring rate 450 RPM, 6.254 h, 9.996 wt.%, methanol-to-animal fat 33.435 50.509 °C, experimentally validated. followed pseudo-first-order kinetics, with an activation energy 43.76 kJ/mol. findings demonstrate potential as low-cost feedstock catalysed by geopolymer, offering more environmentally friendly traditional
Language: Английский
Citations
1Energy, Journal Year: 2025, Volume and Issue: unknown, P. 134787 - 134787
Published: Jan. 1, 2025
Language: Английский
Citations
1