Article
Chemistry, Physical
Shaochen Cao, Liangjun Li, Mengwei Guo, Wenli Xu, Tao Liu, Tao Xing, Zhi Li, Mingqing Wang, Muzhou Wang, Mingbo Wu
Summary: Pressure-swing adsorption (PSA) is gaining popularity as a CO2 capture process due to its efficiency, low cost, and environmental friendliness. This study focuses on the synthesis of a unique sunflower-shaped superstructure of CHA zeolite with high adsorption selectivity and improved mass transfer rate and diffusion. The resulting hierarchical superstructure demonstrated a significantly higher CO2 uptake and ultrahigh separation selectivity, making it a promising candidate for CO2 capture via the PSA process.
CHEMISTRY OF MATERIALS
(2023)
Article
Environmental Sciences
Md Modassir Khan, Arun Kumar Kadian, Rabindra Prasad Sharma
Summary: Quaternary blends of diesel-biodiesel-vegetable oil-alcohol have the potential to reduce fossil fuel usage and air pollution caused by marine diesel engines. The experimental work aimed to develop cleaner fuel and improve engine performance by fueling a diesel engine with quaternary blends of different compositions. The results showed that DBOProp20 blend exhibited the lowest fuel consumption and highest thermal efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Rene Spencer Chatwell, Gabriela Guevara-Carrion, Yuri Gaponenko, Valentina Shevtsova, Jadran Vrabec
Summary: The study investigates the effect of traces of ethanol in supercritical carbon dioxide on the mixture's thermodynamic properties through molecular simulations and Taylor dispersion measurements. The study reveals two transitions along the isobar path, from liquid-like to gas-like conditions at the Widom line, and from supercritical gas-like domain to subcritical gas. The presence of microheterogeneities due to ethanol self-association leads to anomalous behavior in the mixture's extended critical region, as shown by dedicated atomistic simulations.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Geochemistry & Geophysics
Xiang Li, Yuan Cheng, Wulong Tao, Shalake Sarulicaoketi, Xuhui Ji, Changhe Yin
Summary: This paper studies the feasibility and optimization parameters of nitrogen injection development of fractured reservoirs through experiments, showing that nitrogen injection can increase early production but gas channeling needs to be avoided. Gas-water alternate flooding can reduce injection pressure and improve recovery.
Review
Engineering, Chemical
Arun Kumar Narayanan Nair, Mohd Fuad Anwari Che Ruslan, Ronghao Cui, Shuyu Sun
Summary: This article provides an overview of molecular simulation studies on the oil+brine two-phase system with CO2, CH4, and their mixture under geological conditions. The simulation results agree well with experimental and theoretical predictions, revealing the variations in interfacial tension, solubility, and surface excess under different conditions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Energy & Fuels
Jose F. Romero Yanes, Moacir F. L. da Costa, Joao P. G. Sampaio, Angelica M. Chacon Valero, Filipe X. Feitosa, Hosiberto B. de Sant'Ana
Summary: The study focused on the phase behavior of crude oil with methane and methane with carbon dioxide mixtures, revealing the impact of methane and CO2 on asphaltene stability. The research identified trends in solubility parameter and internal energy changes associated with asphaltene deposition and stabilization in the studied systems.
Article
Engineering, Chemical
Ehsan Heidaryan, Babak Aghel, Sasan Sahraie, Mahmoud Maleki
Summary: This study investigated the effects of temperature, solvent flow rate, and gas flow rate on carbon dioxide absorption and liquid-side volumetric mass transfer coefficient in a microreactor using various solvents. Ethylene glycol achieved the highest absorption (91.57%) and the highest klav value (18.2 s-1) at 15 degrees C, indicating its potential as an alternative solvent for carbon dioxide absorption applications.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Thermodynamics
Gisselle E. Ramirez-Ramos, Youssef Zgar, Daniel Salavera, Yohann Coulier, Karine Ballerat-Busserolles, Alberto Coronas
Summary: New vapor-liquid equilibrium data of the CO2+acetone mixture were determined using a static and synthetic method at temperatures ranging from (283.15 to 383.15) K and a composition range from (4 to 85) % in CO2 mole fraction. The study found that carbon dioxide exhibits total miscibility and good solubility in acetone. The experimental and calculated values showed a small average deviation, with good agreement between the calculation and experimental values.
FLUID PHASE EQUILIBRIA
(2021)
Article
Engineering, Chemical
Sebastian Ovalle, Camilo Martinez, Juan G. Beltran
Summary: The HLV equilibrium conditions of two ternary gas mixtures were investigated in this study, and it was found that the long experimental times pose a challenge for multicomponent systems. The technique used in this research bypasses these limitations and provides fast and reproducible HLV equilibrium data for gas-dominated systems.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Energy & Fuels
Jose F. Romero Yanes, Chih-Wei Lin, Hosiberto B. de Sant'Ana, Magali Pujol, Julien Collell, Jerome Pauly, Felipe P. Fleming, Francois Montel, Jean-Luc Daridon
Summary: In this work, the phase behavior of a live presalt crude oil with high CO2 content was investigated using a combination of measurement and modeling techniques. The phase transitions were measured and modeled in the form of a (p, T) diagram, with additional measurements carried out in a pseudobinary oil + gas model system.
Article
Chemistry, Physical
Areli J. Hernandez-Guzman, Victor M. Trejos, Alejandro Martinez-Borquez
Summary: The vapor-liquid equilibria of binary mixtures containing carbon dioxide + n-alkanols were studied using the SAFT-VR approach, with the quadrupole moment of carbon dioxide considered. By incorporating quadrupolar interactions, improved predictions of pressure-composition and density-composition projections were achieved, showing good agreement with experimental data. The inclusion of quadrupolar interactions provided a more effective treatment of phase behavior, and the results are valuable for further exploration of adsorption-extraction processes.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Meteorology & Atmospheric Sciences
Nobuyuki Aoki, Shigeyuki Ishidoya, Shohei Murayama, Nobuhiro Matsumoto
Summary: This study evaluated the adsorption and fractionation of CO2 during the preparation of standard mixtures with atmospheric CO2 level. The results showed that there was a deviation between the CO2 molar fractions in the standard mixtures and their gravimetric values, which was caused by the fractionation during the transfer of the source gas.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2022)
Article
Energy & Fuels
Oluwakemi Eniolorunda, Antonin Chapoy, Rod Burgass
Summary: Accurate experimental measurements of phase equilibrium data for synthetic live oil systems were conducted in this study, assessing the predictive capability of existing thermodynamic models. The results showed good predictability against experimental data, demonstrating the robustness of the experimental procedure.
Article
Thermodynamics
Mohammad J. Hasan, Fariba Yeganeh, Amy Ciric, Peng Chen, Erick S. Vasquez, Esteban E. Urena-Benavides
Summary: This study determined the liquid-liquid equilibrium (LLE) of the ternary system water + ethanol + castor oil using high performance liquid chromatography (HPLC). The separation factors and distribution coefficients were calculated, showing a high separation factor and distribution coefficient at the lowest ethanol concentration tested. Additionally, the study found that nanoparticles had a negligible effect on the thermodynamic equilibrium, suggesting their potential use in magnetically controlled demulsification.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2023)
Article
Thermodynamics
Aya Saito, Daigo Yokoi, Tomoya Tsuji, Peck Loo Kiew, Masaki Okada, Taka-aki Hoshina
Summary: In this study, the solid-liquid equilibria of three binaries and two ternaries were investigated. Simple eutectic systems were observed for water-antipyrine and water-4-aminoantipyrine, while no eutectic point was found for the other ternaries. The interactions between ethanol and water in the ternary systems were different from those in the ethanol-water binary system.
FLUID PHASE EQUILIBRIA
(2023)
Article
Chemistry, Applied
Natalia Castejon, Francisco Javier Senorans
Summary: This study presents a novel approach to improve the nutritional characteristics of natural oils by extracting raw materials with ecofriendly methods and producing novel acylglycerols using immobilized lipases. The research successfully synthesized 2-monoacylglycerols enriched in omega-3 stearidonic acid and developed a feasible enzymatic process, showcasing the potential of immobilized lipases in producing novel lipids.
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY
(2021)
Article
Chemistry, Medicinal
Cristina Blanco-Llamero, F. Javier Senorans
Summary: The study demonstrated that ultrasound assisted extraction and pressurized liquid extraction with different biobased solvents are effective methods for extracting algal lipids. By using solvent mixtures like 2-MeTHF and ethanol, efficient extraction and fractionation of lipids from microalgae biomass can be achieved with high yields.
Article
Oncology
Lara P. Fernandez, Maria Merino, Gonzalo Colmenarejo, Juan Moreno Rubio, Tais Gonzalez Pessolani, Guillermo Reglero, Enrique Casado, Maria Sereno, Ana Ramirez de Molina
Summary: Despite advancements in surgery and therapies, small cell lung cancer (SCLC) remains one of the deadliest types of cancer. A metabolic precision approach for SCLC patients is proposed for the first time, highlighting the importance of metabolic health and lipid gene expression in predicting SCLC survival. Two lipid metabolism genes, racemase and perilipin 1, along with a genetic risk score of both genes, are shown to be biomarkers of SCLC survival. Importantly, controlling metabolic health, lipid gene expression, and lifestyle-associated environmental factors is crucial for increased SCLC survival.
Review
Oncology
Marina Reguero, Marta Gomez de Cedron, Sonia Wagner, Guillermo Reglero, Jose Carlos Quintela, Ana Ramirez de Molina
Summary: Obesity and metabolic disorders are global issues associated with chronic diseases like cancer, which can be improved through dietary and nutritional interventions. The link between obesity and various diseases is mainly driven by metabolic and inflammatory changes in adipose tissue, making obesity a significant risk factor for cancer. Mediterranean diet and physical activity can reduce the risk of obesity-related diseases.
Article
Biochemistry & Molecular Biology
Marina Reguero, Marta Gomez de Cedron, Guillermo Reglero, Jose Carlos Quintela, Ana Ramirez de Molina
Summary: Obesity is on the rise in developing countries, occurring at younger ages, disrupting whole-body physiology. Modifiable risk factors related to lifestyle play a significant role in obesity development. By studying the effects of natural extracts on cell bioenergetics, potential extracts have been identified to ameliorate the deleterious effects of obesity and chronic inflammation.
Article
Medicine, General & Internal
Rafael Suarez-Del-Villar-Carrero, Diego Martinez-Urbistondo, Amanda Cuevas-Sierra, Iciar Ibanez-Sustacha, Alberto Candela-Fernandez, Andrea Dominguez-Calvo, Omar Ramos-Lopez, Juan Antonio Vargas, Guillermo Reglero, Paula Villares-Fernandez, Jose Alfredo Martinez
Summary: This study aimed to develop a model based on commonly requested hematological variables for early discrimination of patients with COVID-19 from those with other viral pneumonia. It identified 10 variables for the characterization of COVID-19 and found that low levels of leukocytes could serve as a primary marker for COVID-19 detection. The results suggest that commonly requested laboratory variables can help distinguish COVID-19 and stratify patients.
JOURNAL OF CLINICAL MEDICINE
(2022)
Review
Food Science & Technology
Cristina Blanco-Llamero, Joel Fonseca, Alessandra Durazzo, Massimo Lucarini, Antonello Santini, Francisco J. Senorans, Eliana B. Souto
Summary: Nutraceuticals formulated from natural sources have gained attention for their therapeutic value, but their instability and low bioavailability pose limitations. Encapsulation in lipid nanoparticles is essential to enhance stability and ensure the expected therapeutic effects.
Article
Biochemistry & Molecular Biology
Marina Reguero, Marta Gomez de Cedron, Aranzazu Sierra-Ramirez, Pablo Jose Fernandez-Marcos, Guillermo Reglero, Jose Carlos Quintela, Ana Ramirez de Molina
Summary: Obesity is associated with chronic inflammation and metabolic disorders. A Mediterranean diet and pomegranate extract (PomE) can reduce inflammation and improve metabolic symptoms.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Biochemistry & Molecular Biology
Ruth M. Galindo-Camacho, Cristina Blanco-Llamero, Raquel da Ana, Mayra A. Fuertes, Francisco J. Senorans, Amelia M. Silva, Maria L. Garcia, Eliana B. Souto
Summary: This article reviews the challenges in the treatment of age-related macular degeneration (AMD), innovative nanoformulations, 3D bioprinting, and techniques for monitoring progress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Environmental Sciences
Helena Marcos-Pasero, Elena Aguilar-Aguilar, Gonzalo Colmenarejo, Ana Ramirez de Molina, Guillermo Reglero, Viviana Loria-Kohen
Summary: The present study aimed to describe the main lifestyle characteristics and their possible association with nutritional status in a group of schoolchildren. The results showed a significant association between schoolchildren's nutritional status and energy balance, Mediterranean Diet Quality Index score, and the availability of TV or other technological devices in their room. The number of daily dairy servings had a protective effect against excess weight.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2023)
Article
Food Science & Technology
Cristina Blanco-Llamero, Ruth M. Galindo-Camacho, Joel Fonseca, Antonello Santini, Francisco J. Senorans, Eliana B. Souto
Summary: Microalgae are a new source of bioactive compounds with health-promoting properties, and can be considered as a valuable alternative to fish and krill oils. In this study, the extract of the microalga Nannochloropsis gaditana was obtained and analyzed. The optimal lipid nanoparticle formulation was developed using a factorial design approach. The developed formulations were found to be stable and had an encapsulation efficiency over 60%.
Article
Biochemical Research Methods
Esperanza Guerrero-Hurtado, Alba Gutierrez-Docio, Rebeca Fiedorowicz, Esperanza Molla, Guillermo Reglero, Marin Prodanov
Summary: This study provides a reliable answer to the mechanism of proanthocyanidin separation in the nonpolar/polar solvent system of NP-HPLC. The precipitation/redissolution mechanism governs the separation of proanthocyanidins, while the classic adsorption/partition mechanism is responsible for the separation of monomer species. Additionally, the study highlights other factors that affect the analysis of proanthocyanidins by NP-HPLC and provides guidelines for its durable and reproducible use.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Engineering, Chemical
Hafsa Yaiche Achour, Cristina Blanco Llamero, Sid Ahmed Saadi, Noureddine Bouras, Abdelghani Zitouni, Javier Senorans
Summary: In recent years, various methods have been studied for the extraction of natural carotenoids. Conventional methods often require a large amount of solvents and a lengthy extraction process. However, pressurized liquid extraction has shown promising results. This study focused on the extraction of carotenoids from the green and orange biomasses of microalga Dunaliella salina DunaDZ1 using different organic solvents and temperatures. The results showed that higher temperatures had a positive effect on extraction yield, while the best antioxidant activity was obtained at a specific temperature and with a certain solvent.
PERIODICA POLYTECHNICA-CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Gonzalo Berzal, Martin Garcia-Gonzalez, Natalia Castejon, Paz Garcia-Garcia, Gloria Fernandez-Lorente, Francisco J. Senorans
Summary: In this study, borage oil was used as the main source of GLA to obtain ethyl esters through enzymatic ethanolysis using immobilized enzymes. The results showed that the conversion yield of borage oil ethanolysis catalyzed by the immobilized TLL was similar to the chemical pathway. When used in a solvent-free system, the immobilized biocatalyst achieved a high FAEE yield and could be reused multiple times.
Article
Food Science & Technology
Hafsa Yaiche Achour, Cristina Blanco Llamero, Sid Ahmed Saadi, Abdelghani Zitouni, Fransisco Javier Senorans
Summary: Microalgae are considered a potential environmentally friendly alternative source of bioactive compounds. This study evaluated the carotenoid composition and antioxidant activity of green and orange biomasses from a new Dunaliella salina strain isolated from an Algerian Salt Lake. The findings showed that ultrasound-assisted extraction with ethyl acetate produced the extract with the highest antioxidant activity.
ANNALS OF THE UNIVERSITY DUNAREA DE JOS OF GALATI, FASCICLE VI-FOOD TECHNOLOGY
(2022)