Listar Departamento de Química Orgánica por autor "2721132a-1383-403c-8438-0cd49ce97b8d"
Mostrando ítems 21-38 de 38
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Internal combustion engines and carbon-neutral fuels: a perspective on emission neutrality in the European Union
Estévez, R.; Aguado-Deblas, Laura; López Tenllado, Francisco Javier; Bautista, Felipa M.; Romero, Antonio A.; Luna, Diego (MDPI, 2024)Nowadays, there is an intense debate in the European Union (EU) regarding the limits to achieve the European Green Deal, to make Europe the first climate-neutral continent in the world. In this context, there are also ... -
Olive Leaves as Biotemplates for Enhanced Solar-Light Harvesting by a Titania-Based Solid
Hidalgo-Carrillo, J.; Martín-Gómez, Juan; Herrera-Beurnio, M. Carmen; Estévez, R.; Urbano Navarro, Francisco José; Marinas, Alberto (MDPI, 2020)Olive leaves (by-product from olive oil production in olive mills) were used as biotemplates to synthesize a titania-based artificial olive leaf (AOL). Scanning electron microscopy (SEM) images of AOL showed the successful ... -
Optimization by response surface methodology of the reaction conditions in 1,3-selective transesterification of sunflower oil, by using CaO as heterogeneous catalyst
Calero, Juan; Luna, Diego; Luna, Carlos; Bautista, Felipa M.; Romero, Antonio A.; Posadillo, Alejandro; Estévez, R. (Elsevier, 2020)In this work, the experimental conditions for the transesterification reaction of sunflower oil, over commercial calcium oxide (CaO) as heterogeneous catalysts, have been optimized employing a multi-factorial design based ... -
Optimization of Biodiesel and Biofuel Process
Luna, Diego; Estévez, R. (MDPI, 2022) -
Outlook for Direct Use of Sunflower and Castor Oils as Biofuels in Compression Ignition Diesel Engines, Being Part of Diesel/Ethyl Acetate/Straight Vegetable Oil Triple Blends
Aguado-Deblas, Laura; Estévez, R.; Hidalgo-Carrillo, J.; Bautista, Felipa M.; Luna, Carlos; Calero, Juan; Posadillo, Alejandro; Romero, Antonio A.; Luna, Diego (MDPI, 2020)Today, biofuels are indispensable in the implementation of fossil fuels replacement processes. This study evaluates ethyl acetate (EA) as a solvent of two straight vegetable oils (SVOs), castor oil (CO), and sunflower oil ... -
Performance and Emission Quality Assessment in a Diesel Engine of Straight Castor and Sunflower Vegetable Oils, in Diesel/Gasoline/Oil Triple Blends
Estévez, R.; Aguado-Deblas, Laura; Posadillo, Alejandro; Hurtado, Beatriz; Bautista, Felipa M.; Hidalgo, José M.; Luna, Carlos; Calero, Juan; Romero, Antonio A.; Luna, Diego (MDPI, 2019)This research evaluates the possibility of using straight oils such as castor oil, which is not suitable for food use, and sunflower oil, used as a standard reference for waste cooking oils, in blends with gasoline as ... -
Probing the pyrolysis process of rice straw over a “Dual-Catalyst Bed” for the production of fuel gases and value-added chemicals
Uddin, Ikram; Sohail, Muhammad; Hussain, Muhammad Ijaz; Alhokbany, Norah; Amaro-Gahete, J.; Estévez, R. (MDPI, 2023)Rice straw is an agricultural byproduct primarily produced in Asian regions. It is crucial to discover an effective method for converting this waste into chemicals that can be utilized to substitute goods derived from ... -
Producción catalítica de solketal a partir de glicerina por reacción de acetalización con propanona en fase líquida
Luna, Diego; Bautista, Felipa M.; López-Pedrajas, S.; Estévez, R. (Universidad de Córdoba, 2015) -
Pt Preferential incorporation onto TiO2 IN TiO2-carbon composites for hydrogen production from glycerol photoreforming
Escamilla, Juan Carlos; Hidalgo-Carrillo, J.; Martín-Gómez, Juan; López Tenllado, Francisco Javier; Estévez, R.; Marinas, Alberto; Urbano, Francisco José (Elsevier, 2022)Platinum was incorporated onto titania-mesoporous carbon composite and tested for glycerol photoreforming. The relative high surface area of the mesoporous carbon favored the good dispersion of anatase titania during sol-gel ... -
Reacción catalítica de eterificación de la glicerina con tert-butanol catalizada por sólidos ácidos, empleando radiación microondas
Luna, Diego; Bautista, Felipa M.; López-Pedrajas, S.; Estévez, R. (Universidad de Córdoba, 2017) -
Rhizomucor miehei Lipase Supported on Inorganic Solids, as Biocatalyst for the Synthesis of Biofuels: Improving the Experimental Conditions by Response Surface Methodology
Calero, Juan; Luna, Diego; Luna, Carlos; Bautista, Felipa M.; Hurtado, Beatriz; Romero, Antonio A.; Posadillo, Alejandro; Estévez, R. (MDPI, 2019)Two inorganic solids have been evaluated as supports of Lipozyme RM IM, a Rhizomucor miehei lipase immobilized on a macroporous anion exchange resin, in order to improve its application as a biocatalyst in the synthesis ... -
Sulfonated carbons from olive stones as catalysts in the microwave-assisted etherification of glycerol with tert-butyl alcohol
Estévez, R.; Aguado-Deblas, Laura; Montes, Vicente; Caballero, Álvaro; Bautista, Felipa M. (Elsevier, 2020)Sulfonated carbons have been prepared from an important waste in Andalusia, the olive stones. The sulfonic acid groups incorporation has been made by sulfuric acid treatment and different conditions have been tested, i.e., ... -
Sulfonated organosilica-aluminum phosphates as useful catalysts for acid-catalyzed reactions: Insights into the effect of synthesis parameters on the final catalyst
Aguado-Deblas, Laura; Estévez, R.; López Tenllado, Francisco Javier; Luna, Diego; Bautista, Felipa M. (Elsevier, 2022)The synthesis, by a sol-gel method, of organosilica-aluminum phosphates, (X)-AlPO(Y)-(Z), using three different silica precursors (X) 2-(4-chlorosulfonylphenyl)ethyltrimethoxysilane (C), 3-(mercaptopropyl)trimethoxysilane ... -
Sulfonic Acid Functionalization of Different Zeolites and Their Use as Catalysts in the Microwave-Assisted Etherification of Glycerol with tert-Butyl Alcohol
Iglesias, Ivan; Luna, Diego; Bautista, Felipa M.; Estévez, R. (MDPI, 2017)The etherification of glycerol with tert-butyl alcohol in the liquid phase, over different sulfonic acid functionalized zeolites, has been studied. The reaction was carried out using microwaves as a way of heating, ... -
Synthesis, Performance and Emission Quality Assessment of Ecodiesel from Castor Oil in Diesel/Biofuel/Alcohol Triple Blends in a Diesel Engine
Hurtado, Beatriz; Posadillo, Alejandro; Luna, Diego; Bautista, Felipa M.; Hidalgo, J.M.; Luna, Carlos; Calero, Juan; Romero, Antonio A.; Estévez, R. (MDPI, 2019)This research aims to promote the use of second-generation biofuels based mainly on Castor oil, which is not adequate for food use, and Sunflower oil as a standard reference for recycled oils. They have been applied in the ... -
Transformación catalítica de glicerina a acroleína en fase líquida
Luna, Diego; Bautista, Felipa M.; López-Pedrajas, S.; Estévez, R. (Universidad de Córdoba, 2015) -
Transformación catalítica de la glicerina, subproducto en la obtención de biodiésel, en productos de interés en Química Fina e Industrial
Estévez, R. (Universidad de Córdoba, UCOPress, 2017)La presente Tesis Doctoral abarca la síntesis y caracterización de catalizadores con diferentes propiedades, texturales y ácidas, y su posterior aplicación en reacciones de valorización de la glicerina, como son ... -
Transformación de propeno sobre fosfatos metálicos
Luna, Diego; Gaigneaux, E.; Bautista, Felipa M.; López-Pedrajas, S.; Estévez, R. (Universidad de Córdoba, 2015)