Recent advances in ultrasound-assisted technologies for improved bioproduct recovery in lignocellulosic and microalgal biorefineries

Journal of Industrial and Engineering Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Review on utilization of rubber seed oil for biodiesel production: Oil extraction, biodiesel conversion, merits, and challenges

Cleaner 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

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Advancements in Catalysts, Process Intensification, and Feedstock Utilization for Sustainable Biodiesel Production

Results in Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 103668 - 103668

Published: Dec. 1, 2024

Language: Английский

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Enhancing Enzymatic Biodiesel Production Using Low-Cost CO₂-Based Alkyl Carbamate Ionic Liquid and Ultrasound-Assisted Intensification

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: 13(1), P. 68 - 79

Published: Jan. 3, 2025

Enzymatic biodiesel production often faces challenges such as mass transfer limitations and enzyme sensitivity, resulting in low reaction efficiency. This study aimed to address these issues by integrating ultrasound technology with low-cost CO2-based alkyl carbamate ionic liquids (ILs) additives. Among the investigated ILs, N,N-diallylammonium N′,N′-diallylcarbamate (DACARB) demonstrated highest fatty acid methyl ester (FAME) content ultrasound-assisted catalyzed Eversa Transform 2.0 at an optimal temperature of 50 °C. The addition DACARB improved solubility immiscible reactants enhanced lipase stability, maintaining high FAME yields even under amplitudes up 100% duty cycles 20%. Enzyme hydrolytic activity assays revealed that activated lipase, increasing 33% through favorable alterations tertiary structure, confirmed fluorescence spectroscopy. Furthermore, employing a stepwise methanol dosing strategy 40% amplitude 5% cycle presence 2 wt % achieved 91.3 within 12 h, using only 0.2 concentration. highlights potential promising additive enhance efficiency enzymatic production, offering solution overcome current process.

Language: Английский

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Enhancing efficiency of ultrasound-assisted biodiesel production catalyzed by Eversa® Transform 2.0 at low lipase concentration: Enzyme characterization and process optimization

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 271, P. 132538 - 132538

Published: May 21, 2024

This study focused on the ultrasound-assisted transesterification of simulated low-quality feedstocks using a low-cost liquid lipase Eversa® Transform 2.0 (ET2). Enzyme characterization was also performed to investigate effect ultrasound parameters enzyme structure. The optimal parameters, 40 % amplitude, and 5 duty cycle effectively enhanced reaction rate compared conventional stirring method while retaining 95 activity. Analysis circular dichroism (CD) spectra revealed preservation secondary structure ET2 under intensities, fluorescence indicated slight change in its tertiary implementation two-stage methanol dosing strategy mitigated inhibition, yielding remarkable fatty acid methyl ester (FAME) content 92.2 achieved within 12-h time. Notable, this high FAME with only 4:1 methanol-to-oil molar ratio 0.5 wt% concentration. Under these optimized conditions, demonstrated 15 improvement final method. These promising results hold significant potential for advancing field biodiesel production via technology, contributing substantively sustainable energy sources.

Language: Английский

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Influences of different ultrasonic treatment intensities on the molecular chain conformation and interfacial behavior of sugar beet pectin

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 275, P. 133643 - 133643

Published: July 3, 2024

Language: Английский

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Optimizing waste cooking biodiesel production using ultrasonic-assisted and studying its combustion characteristics blended with diesel in diesel engine

Environmental Science and Pollution Research, Journal Year: 2025, Volume and Issue: unknown

Published: March 2, 2025

Language: Английский

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Adjustable Brønsted type ionic liquid catalyst based on porous cellulose microspheres for green and efficient catalytic system in transesterification

Fuel, Journal Year: 2025, Volume and Issue: 394, P. 135190 - 135190

Published: March 25, 2025

Language: Английский

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Advancements in Reactor Technologies for Scalable and Sustainable Biodiesel Production

ChemBioEng Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Abstract Large‐scale biodiesel production faces a critical challenge due to its relatively high cost, compared fossil‐based diesel, primarily driven by expensive feedstocks and processes. To address this, there is an urgent need for the development continuous improvement of cost‐effective eco‐friendly technologies. This paper comprehensively reviews techniques, focusing on transesterification reactor. Recent advancements in reactor technologies, including tubular/plug‐flow rotating reactors, are discussed detail. The merits limitations each type critically analyzed provide insights into their applicability production. Life cycle assessment techno‐economic analysis using reactors discussed. Furthermore, explores prospects developing innovative systems, emphasizing sustainability integrating biorefinery concepts waste feedstocks. review will guide future research efforts toward scalable sustainable

Language: Английский

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Enhancing Safety and Risk Management in Biodiesel Production: A Machine Learning Approach Using k-Means Clustering to Address Operational Challenges and Standardization Issues

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 105175 - 105175

Published: May 1, 2025

Language: Английский

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