Article
Energy & Fuels
Rui Huang, Jun Cheng, Wenlu Song, Yi Qiu, Hao Guo, Weijuan Yang
Summary: The study focused on refining methyl esters extracted from microalgal lipids through direct transesterification using vacuum distillation. The ideal fuel was found to be methyl ester refined at 255-259 degrees C, with high content, low combustion activation energy, and proper carbon-chain length. Vacuum distillation effectively separated impurities and enhanced the properties of the methyl esters, improving the economic feasibility of microalgal lipids.
Review
Chemistry, Physical
Iqra Riaz, Iqrash Shafiq, Farrukh Jamil, Ala'a H. Al-Muhtaseb, Parveen Akhter, Sumeer Shafique, Young-Kwon Park, Murid Hussain
Summary: This article provides a review of various catalysts used in biodiesel production, with a focus on naturally derived heterogeneous catalysts. It explores the use of different heterogeneous catalysts as alternatives to homogeneous catalysts for the esterification and transesterification of nonedible and low-cost biomasses. The article also analyzes the impact and long-term performance of biodiesel in various applications, and reports advancements in catalysts and processes to facilitate further development in biodiesel production.
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Miquele L. Padula, Arthur S. Romero, Dachamir Hotza, Murilo D. M. Innocentini, Maria E. G. Pinto, Augusto S. Pedrini, Evertan Rebelatto, Luiz Fernando B. Ribeiro, Guilherme Zin, J. Vladimir Oliveira, Marco Di Luccio
Summary: This study investigated the efficiency of microfiltration with a polymeric membrane for the dehydration of fatty acid ester mixtures. The modified membrane showed improved performance with higher fluxes and enhanced dehydration compared to the unmodified control membrane.
Article
Chemistry, Analytical
Gust Popelier, Florence Vermeire, Marko Djokic, Ruben De Bruycker, Maarten Sabbe, Kevin M. Van Geem
Summary: Biodiesel can be utilized as an alternative or blend for conventional steam cracking feedstocks in the chemical industry to produce clean platform chemicals. Understanding the decomposition chemistry of biodiesel is crucial for its combustion, aging, and potential as a base chemical source. This study evaluated the impact of structural differences in three methyl esters on their decomposition chemistry and product composition. A new kinetic model was developed using the Genesys tool to analyze the pyrolysis of different methyl esters.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Review
Energy & Fuels
Claudia Prestigiacomo, Martina Biondo, Alessandro Galia, Eric Monflier, Anne Ponchel, Dominique Prevost, Onofrio Scialdone, Sebastien Tilloy, Rudina Bleta
Summary: This study successfully fabricates SnO@gamma-Al2O3 composites with tuneable pore size and well-defined octahedral-shape crystal structure using a molecular-colloidal coassembly approach combined with an ultrasonic-assisted precipitation method. The cooperative action of the supramolecular template and gamma-Al2O3 nanoparticles plays a critical role in the growth and orientation of SnO microcrystals and ultimately determines their catalytic performance in ester exchange reactions.
Review
Energy & Fuels
Carsten Wedler, J. P. Martin Trusler
Summary: Biodiesel fuels are comprised of a mixture of different fatty acid esters, which have significant effects on combustion and storage. This study reviews the available experimental data on density and viscosity of fatty acid methyl, ethyl, and butyl esters and identifies gaps in the literature. The research includes 16 different esters from three ester families and provides an overview of generalized models for describing density and viscosity at elevated pressures.
Article
Engineering, Chemical
Arthur Santos Romero, Murilo Daniel de Mello Innocentini, Dachamir Hotza, J. Vladimir Oliveira
Summary: This study proposes the use of membrane separation to polish industrial enzymatic fatty acid methyl esters (FAME). Results show that the 10 kDa ultrafiltration (UF) membrane can effectively remove impurities and improve the color and contamination of FAME samples.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Biotechnology & Applied Microbiology
Akash Anandraj, Sarah White, Joseph K. Bwapwa
Summary: Temperature and nutrient conditions affect the physiology and FAME composition of Chlorella sp., with dual stress leading to increased lipid yield. Identified FAMEs C-16 and C-18 have potential for quality biodiesel and aviation fuel.
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2021)
Article
Green & Sustainable Science & Technology
Wenchao Wang, Huili Liu, Fashe Li, Hua Wang, Xin Ma, Jingjing Li, Li Zhou, Quan Xiao
Summary: This study explores the trends of different FAMEs during the oxidation process of biodiesel, finding that methyl linoleate is the main reason for biodiesel oxidation. Through experimental analysis, it was determined that different FAMEs have varying effects on the stability of biodiesel, with methyl linoleate showing the fastest oxidation rate. The study proposed a mathematical equation to calculate the trend of FAMEs and used information entropy theory to calculate the weighting coefficients, with methyl linoleate having a high coefficient of 0.6797.
Article
Energy & Fuels
D. E. Leiva-Candia, I. L. Garcia, I. Lopez, J. A. Serrano-Herrador, M. P. Dorado
Summary: Despite the expected electrification of vehicle fleet in the coming years, internal combustion engines continue to play a significant role in the transport sector. The search for renewable non-polluting fuels has become crucial due to new regulations for emission reduction and decarbonization. Biodiesel, although a proven candidate, needs diversification for sustainable mobility and to avoid future dependency. This research focuses on utilizing discarded oil to produce economically affordable biodiesel, studying the possibility of using a binary mix of fuels including primary alcohols with highly-oxidized dumped oil biodiesel.
Article
Energy & Fuels
Fabian S. Mederos-Nieto, Adid O. Santoyo-Lopez, Raul Hernandez-Altamirano, Violeta Y. Mena-Cervantes, Fernando Trejo-Zarraga, Guillermo Centeno-Nolasco, Edgar Ramirez-Jimenez
Summary: This study outlines the production of renewable fuels from castor bean seeds in two stages, first obtaining castor oil methyl esters through reactive extraction and then applying hydrotreating process. Experiments showed that under moderate operating conditions, a higher yield and product selectivity of the kerosene fraction can be achieved.
Article
Thermodynamics
Mohammadreza Asghari, Bahram Hosseinzadeh Samani, Rahim Ebrahimi, Sajad Rostami, Ebrahim Fayyazi
Summary: In this study, a liquid-phase capillary discharge plasma reactor was developed for the continuous production of biodiesel from sunflower oil at ambient temperature and pressure. The response surface method (RSM) was used to optimize FAME content by examining four main operational parameters. The results showed that the reactor could continuously produce 95.9% methyl ester content with high conversion efficiency at low temperatures and with minimum inputs compared to common methods.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Energy & Fuels
Ayesha Mushtaq, Muhammad Asif Hanif, Muhammad Zahid, Umer Rashid, Zahid Mushtaq, Muhammad Zubair, Bryan R. Moser, Fahad A. Alharthi
Summary: Biodiesel has many advantages compared to conventional petroleum diesel, but its high production costs, poor low temperature operability, and variability of fuel quality have limited its widespread adoption. This study used inedible tamarind seed oil as a feedstock and employed high vacuum fractional distillation and various catalytic reactions to produce consistent quality biodiesel, overcoming the low temperature performance issue.
Article
Biochemical Research Methods
Lucie K. Tintrop, Maik A. Jochmann, Thomas Beesley, Marco Kueppers, Ruth Brunstermann, Torsten C. Schmidt
Summary: In this study, a novel and green analytical approach based on headspace solid-phase microextraction arrow and gas chromatography coupled to tandem mass spectrometry (GC-MS/MS) was proposed for the determination of 24 fatty acid methyl esters (FAMEs) in aqueous samples. Thorough optimization and automation of the relevant parameters significantly accelerated the method, while maintaining low detection limits and high selectivity. Evaluation of the method on real samples demonstrated its applicability for water analysis and potential for further applications with solid and gaseous samples containing FAMEs.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Energy & Fuels
Aleksandra Lelevic, Christophe Geantet, Maxime Moreaud, Chantal Lorentz, Vincent Souchon
Summary: Gas oils (GOs) analysis is crucial for production process control. The introduction of vacuum ultraviolet (VUV) detector offers new possibilities in direct quantification of hydrocarbons in gas oils without the need for prefractionation.
