Article
Materials Science, Multidisciplinary
D. Murguia-Ortiz, I. Cordova, M. E. Manriquez, E. Ortiz-Islas, R. Cabrera-Sierra, J. L. Contreras, B. Alcantar-Vazquez, M. Trejo-Rubio, J. T. Vazquez-Rodriguez, L. V. Castro
Summary: Mexican dolomites doped with sodium nitrate were calcined to generate mixed metal oxides for catalytic transesterification of canola oil. Among all catalysts, Na-CaO/MgO exhibited the highest conversion rate of 95.4% and the optimal theoretical conversion rate of 97.46% was obtained through nonlinear programming.
Article
Green & Sustainable Science & Technology
Zhijuan Wang, Huajing Zhou, Zilian Liu, Rongrong Miao, Liang He, Qingqing Guan
Summary: Producing biodiesel by transesterification of waste oils or fats with short-chain alcohol can alleviate energy and environmental issues, and reducing the cost of transesterification catalyst is crucial for enhancing biodiesel competitiveness. In this work, a novel calcium oxide-cancrinite based catalyst was prepared from a calcium-rich residue obtained through one-step pyrolysis of paper mill sludge. The hydrothermal condition of the sludge slightly affected the yield of fatty acid methyl ester, while the pyrolysis temperature significantly influenced the transesterification performance. Optimization of key process parameters achieved a yield of over 95% for fatty acid methyl ester.
Article
Crystallography
Mohammed Rafi Shaik, Syed Farooq Adil, Zeid A. ALOthman, Osamah M. Alduhaish
Summary: Technology advancement in sustainable biodiesel production is crucial for combating rising fuel costs. Highly efficient MOFs-based catalysts play a key role in enhancing biodiesel production efficiency. This report demonstrates the synthesis and catalytic application of a novel Zr-fumarate-MOF catalyst (MOF-801) for transesterification of used vegetable oil to produce biodiesel.
Article
Agricultural Engineering
Samuel Gemsprim Muthurathinam, Ashoka Varthanan Perumal
Summary: The lubricating ability of vegetable oil-based lubricant additives with commercially used engine lubricant is studied in this article. The biolubricant blends, such as N10, P10, P20, and N20, are capable of significantly reducing wear and have appreciable frictional coefficients. These blends can be considered as primary alternatives to conventional lubricants in the long term.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Multidisciplinary
Demelash Tilahun Bekele, Nurelegne Tefera Shibeshi, Ali Shemsedin Reshad
Summary: In this study, a heterogeneous basic catalyst was synthesized and used for the transesterification of waste frying oil. The calcination temperature and KNO3 impregnation were found to have significant effects on the catalyst properties.
Article
Energy & Fuels
Cornelio Delesma, Patrick Okoye, Moises Castellanos-Lopez, Adriana Longoria, Jesus Muniz
Summary: This study utilized density functional theory to categorize the most probable routes for glycerol conversion and calculated the Gibbs free energies involved in the synthesis of glycerol carbonate. The results showed the feasibility of the cyclization from methyl glycerol carbonate anion to glycerol carbonate and provided insights into molecular dimensions and charge population analysis.
Article
Green & Sustainable Science & Technology
Pravin Kodgire, Anvita Sharma, Surendra Singh Kachhwaha
Summary: The current study investigates the application of synchronized ultrasound and microwave for biodiesel production using Ricinus communis oil and used cottonseed cooking oil blends. The study focuses on process optimization, kinetic analysis, and energy analysis, aiming to improve the fuel properties. The effects of oil/methanol proportion, CaO %, RCO + UCCO blend ratio, and reaction time are examined. The use of blended oil proportion as a process parameter is deliberated for the first time. The optimized conditions result in biodiesel with a yield of 92.11 +/- 0.06% and improved fuel properties.
Article
Engineering, Chemical
Sofia M. Kosolapova, Makar S. Smal, Viacheslav A. Rudko, Igor N. Pyagay
Summary: Countries invest in and incentivize the production of liquid biofuels due to the recognized advantages in social, economic, and environmental aspects. This study focuses on the synthesis of fatty acid esters in order to increase the reaction kinetics. Various parameters were studied using magnetic stirred tank reactors with a homogeneous alkaline catalyst. The results show the potential of using a continuous reactor system to produce fatty acid esters from linoleic raw materials containing up to 16% free fatty acids, indicating the possibility of utilizing second generation biofuel feedstock.
Article
Thermodynamics
Mychelle L. Andrade, Cristina F. Cavalcanti, Dayene L. L. Dantas, Tulio N. Silvestre, Neide Queiroz, Vicente C. Oliveira Costa, Antonia L. Souza
Summary: The blends prepared in this study had a healthier fatty acid composition and higher oxidative stability compared to pure palm oil. The amount of palm oil used in the blends did not affect the formation of trans fatty acids.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Engineering, Environmental
Leila Fereidooni, Alireza Abbaspourrad, Mojtaba Enayati
Summary: This study explores the conversion of Waste Fried Oil (WFO) to Fatty Acid Methyl Ester (FAME) via electrolysis, achieving a yield of 96.5% under optimal conditions. Various factors such as voltage, catalyst concentration, and molar ratio of methanol to WFO were investigated in the electrolytic transesterification process. Characterization of physical and biodiesel fuel properties was performed, along with analysis of the biocomposite using a variety of techniques.
Article
Chemistry, Applied
Marcia G. Ventura, Thomas Pullert, Rubia Risso, Ines Matos, I. Fonseca, Joaquim M. Vital
Summary: Composite materials based on CaO from egg shells and anionic sulfated linear polysaccharide k-carrageenan from red seaweeds were successfully used as a heterogeneous catalyst for transesterification reaction of soybean oil with methanol. The prepared composites exhibited excellent thermal stability and catalytic activity, with an internal structure consisting of meso and macropores that widen with the addition of a crosslinker HMDI.
Article
Energy & Fuels
Abdi Moushab Mohamed, Yalcin Zehra Gulten, Dag Mustafa
Summary: This study utilized waste sunflower frying oil to synthesize biodiesel and biolubricant via a transesterification reaction. Experiments were carried out using both single catalysts and a mixture of three catalysts, with pure potassium hydroxide yielding the best results. The optimum conditions for the highest conversion rate were determined to be using potassium hydroxide as the catalyst at 65°C for 120 minutes, with a methanol/oil ratio of 5/1 and a catalyst amount of 1%. Various properties of the biodiesel were analyzed, and the structure and thermal stability of the biolubricant were examined.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Physical
David Kocian, Martin Hajek, Ales Vavra, Karel Frolich, Jaroslav Kocik
Summary: The Mg-Al mixed oxides is an attractive acid-base catalyst with various activity, and impurities such as sodium ions can significantly affect the catalytic performance. The transformation of sodium species during synthesis can influence the transesterification reaction, increasing the ester yield. Additionally, the presence of sodium compounds can rapidly enhance the catalyst activity by changing the active sites.
MOLECULAR CATALYSIS
(2022)
Article
Engineering, Environmental
Yanfei Xie, Danxia Wang, Sattam Fahad Almojil, Abdulaziz Ibrahim Almohana, Abdulrhman Fahmi Alali, Yihui Zhou, Amir Raise
Summary: In this study, a novel nanocatalyst CaO-MgFe2O4@K2CO3 was used to generate biodiesel from used frying oil (UFO). The structural and morphological properties of the nanocatalyst were evaluated and the biodiesel yield was significantly increased compared to the traditional catalyst CaO. The physical features of the biodiesel met international standards and the transesterification reaction was found to be endothermic and non-spontaneous. The reusability of the nanocatalyst was demonstrated and its environmental impact was lower than common catalysts.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Food Science & Technology
Silvia Petronilho, Andre Oliveira, M. Rosario Domingues, Fernando M. Nunes, Manuel A. Coimbra, Idalina Goncalves
Summary: The addition of spent frying oil (SFO) and KOH during starch-based film production can greatly improve the transparency, hydrophobicity, and flexibility of the films, making them more suitable for various applications. Experimental results using a one-step approach have shown the effectiveness of this method in enhancing material properties.
Article
Thermodynamics
Guilin Wen, Wenting Bai, Fengbin Zheng, Juan A. Reyes-Labarta, Yixin Ma, Yinglong Wang, Jun Gao
FLUID PHASE EQUILIBRIA
(2018)
Article
Thermodynamics
Ping Wang, Peisong Yan, Juan A. Reyes-Labarta, Jun Gao, Dongmei Xu, Lianzheng Zhang, Yinglong Wang
FLUID PHASE EQUILIBRIA
(2019)
Article
Engineering, Chemical
Alba Carrero-Parreno, Natalia Quirante, Ruben Ruiz-Femenia, Juan A. Reyes-Labarta, Raquel Salcedo-Diaz, Ignacio E. Grossmann, Jose A. Caballero
Article
Engineering, Chemical
Alba Carrero-Parreno, Viviani C. Onishi, Ruben Ruiz-Femenia, Raquel Salcedo-Diaz, Jose A. Caballero, Juan A. Reyes-Labarta
Article
Thermodynamics
A. Marcilla, M. M. Olaya, J. A. Reyes-Labarta, P. Carbonell-Hermida
FLUID PHASE EQUILIBRIA
(2019)
Article
Engineering, Chemical
Antonio F. Marcilla, Juan A. Labarta, Milagros Leon, Angela N. Garcia
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Article
Chemistry, Physical
Xiaowen Zhang, Zhaojie Wang, Ke Wang, Juan A. Reyes-Labarta, Jun Gao, Dongmei Xu, Yinglong Wang
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Green & Sustainable Science & Technology
Jose A. Caballero, Juan A. Labarta, Natalia Quirante, Alba Carrero-Parreno, Ignacio E. Grossmann
Article
Engineering, Chemical
Maria del Mar Olaya, Paloma Carbonell-Hermida, Marina Trives, Juan A. Labarta, Antonio Marcilla
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Multidisciplinary
Lianzheng Zhang, Xiaobin Bing, Ziqi Cui, Juan A. Labarta, Dongmei Xu, Jun Gao, Shixue Zhou, Yinglong Wang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Thermodynamics
Ke Wang, Akram Ali Nasser Mansoor Al-Haimi, Tao Zhang, Juan A. Labarta, Jun Gao, Dongmei Xu, Lianzheng Zhang, Yinglong Wang
Summary: Three pyridinium-based ionic liquids were utilized to extract isopropanol from its aqueous mixture, with n-hexylpyridinium bis(trifluoromethyl sulfonyl)imide IL showing better extraction efficiency. The NRTL model was applied for regression analysis, and the coherence of optimized binary parameters was examined using Gibbs energy surfaces.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2021)
Article
Thermodynamics
Dan Wang, Feng Wei, Juan A. Reyes-Labarta, Zhaojie Wang, Dongmei Xu, Jun Gao, Lianzheng Zhang, Yinglong Wang
Summary: Three ionic liquids were used as extractants to separate the azeotropic mixture of n-butyl acetate and n-butanol by liquid-liquid extraction. The liquid-liquid equilibrium data was measured at 298.15 K and 101.3 kPa, and the extraction capacity of the ionic liquids was evaluated by partition coefficient and selectivity. The NRTL model was applied to fit the data with good accuracy.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2021)
Article
Engineering, Chemical
Juan A. Labarta, Maria M. Olaya, Antonio F. Marcilla
Summary: This study analyzes the characteristics of the nonrandom two-liquids model (NRTL) and investigates its relation with binary interaction parameters and phase equilibria. Empirical equations are established to simulate the trajectories of different miscibility boundaries.
Proceedings Paper
Engineering, Environmental
Alba Carrero-Parreno, Ruben Ruiz-Femenia, Jose A. Caballero, Juan A. Reyes-Labarta, Ignacio E. Grossmann
28TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING
(2018)
Proceedings Paper
Green & Sustainable Science & Technology
Viviani C. Onishi, Juan A. Reyes-Labarta, Jose A. Caballero
RECENT ADVANCES IN ENVIRONMENTAL SCIENCE FROM THE EURO-MEDITERRANEAN AND SURROUNDING REGIONS, VOLS I AND II
(2018)