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Listar por palabra clave "Carbon dioxide"

Mostrando ítems 1-20 de 59

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A comparison between oxidation of activated carbon by electrochemical and chemical treatments

Berenguer, Raúl; Marco-Lozar, Juan Pablo; Quijada Tomás, Cesar; Cazorla-Amoros, Diego; Morallón, Emilia (Elsevier, 2012)

The anodic oxidation of a granular activated carbon (GAC) in NaCl solution has been studied. The influence of the electrocatalyst-anode material, applied current and time of treatment on both the surface chemistry and ...
A new geopolymeric binder from hydrated-carbonated cement

Paya Bernabeu, Jorge Juan; Borrachero Rosado, María Victoria; Monzó Balbuena, José Mª; Soriano Martínez, Lourdes; Mitsuuchi Tashima, Mauro (Elsevier, 2012-05)

This paper evaluates the use of hydrated Portland cement as the raw material in the production of geopolymers. The silicon and aluminium oxides needed for the geopolymerization process were produced by the carbonation of ...
A Simple Probe for the Colorimetric Detection of Carbon Dioxide

Climent Terol, Estela; Agostini, Alessandro; Moragues Pons, María Esperanza; Martínez Mañez, Ramón; Sancenón Galarza, Félix; Pardo Vicente, María Teresa; Marcos Martínez, María Dolores (Wiley-VCH Verlag, 2013-11-08)

The present study reports a novel approach for the chromogenic sensing of CO2 using silica nanoparticles N1 functionalized with amino and thiol moieties. The reaction of CO2 present in air with the hybrid silica nanoparticles ...
Análisis energético y de emisiones de dióxido de carbono equivalentes del municipio de Sagunto entre los años 2010 y 2019. Definición y evaluación de las propuestas a implementar para el cumplimiento del Pacto de los Alcaldes para el Clima y la Energía

Villanueva Párraga, Diego (Universitat Politècnica de València, 2021-06-18)

[ES] El objeto del proyecto es el análisis de los consumos energéticos del municipio de Sagunto, así como de las emisiones equivalentes de dióxido de carbono asociadas a estos consumos. El estudio se realiza para datos ...
Barrier properties of sodium caseinate films as affected by lipid composition and moisture content

Fabra Rovira, María José; Talens Oliag, Pau; GAVARA CLEMENTE, RAFAEL; Chiralt Boix, Mª Amparo (Elsevier, 2012-04)

This work analyses the effect of lipid addition (oleic acid, beeswax and oleic acid-beeswax mixtures) as well as the influence of the relative humidity (RH), or the equilibrium water content of the films, on the permeability ...
Caracterización de la difusión en condiciones relevantes para la cromatografía de fluidos supercríticos

Sintes Olives, Pau (Universitat Politècnica de València, 2021-05-14)

[ES] El trabajo consiste en la caracterización del coeficiente de difusión (Dmol) de importantes compuestos farmacéuticos bajo condiciones (temperatura, presión, composición) imperantes en cromatografía de fluidos supercríticos ...
Catalytic Reductive N-Alkylations Using CO2 and Carboxylic Acid Derivatives: Recent Progress and Developments

Cabrero Antonino, Jose Ramón; Adam-Ortiz, Rosa; Beller, Matthias (John Wiley & Sons, 2019-09-09)

[EN] N-Alkylamines are key intermediates in the synthesis of fine chemicals, dyes, and natural products, and hence are highly valuable building blocks in organic chemistry. Consequently, the development of greener and more ...
Characterization of gas emissions from a Mediterranean broiler farm

Calvet Sanz, Salvador; Cambra López, María; Estellés, F.; Torres Salvador, Antonio Germán (Poultry Science Association, 2011)

[EN] Gas emissions from broiler production have been the subject of intensive research. However, little experimental information exists for farms under the particular management and environmental conditions of the European ...
Characterization of the indoor environment and gas emissions in rabbit farms

Calvet Sanz, Salvador; Cambra López, María; Estellés Barber, Fernando (World Rabbit Science. ICTA. UPV, 2011)

[EN] There is a need to characterize gas concentrations and emissions from rabbit production. A study was conducted in order to determine ammonia, nitrous oxide and carbon dioxide concentrations and emissions in three ...
CO2 Reduction over Mo2C-Based Catalysts

Marquar, Wijnand; Raseale, Shaine; Prieto González, Gonzalo; Zimina, Anna; Bikash Sarma, Bidyut; Grunwaldt, Jan-Dierk; Claeys, Michael; Fischer, Nico (American Chemical Society, 2021-02-05)

[EN] Four Mo-based catalysts were prepared via three different synthesis techniques supported on SiO2 and/or SBA-15. By means of complementary in situ characterization techniques, the carburization process and the final ...
CO2-Optimization Design of Reinforced Concrete Retaining Walls Based on a VNS-Threshold Acceptance Strategy

Yepes Piqueras, Víctor; González Vidosa, Fernando; Alcalá González, Julián; Villalba Izquierdo, Pere (American Society of Civil Engineers, 2012)

This paper presents one approach to a methodology to design reinforced concrete cantilever retaining walls for road construction using a hybrid multistart optimization strategic method based on a variable neighborhood ...
Combined high hydrostatic pressure and carbon dioxide inactivation of pectin methylesterase, polyphenol oxidase and peroxidase in feijoa puree

Ortuño Cases, Carmen; Duong, Trang; Balaban, Murat; Benedito Fort, José Javier (Elsevier, 2013)

[EN] A combined treatment of high hydrostatic pressure (HHP) and dense phase carbon dioxide (DPCD) was investigated to inactivate pectin methylesterase (PME), peroxidase (POD) and polyphenol oxidase (PPO) in feijoa (Acca ...
Comparative study of regulated and unregulated gaseous emissions during NEDC in a light-duty diesel engine fuelled with Fischer Tropsch and biodiesel fuels

Bermúdez, Vicente; Luján, José M.; Plá Moreno, Benjamín; Linares Rodríguez, Waldemar Gregorio (Elsevier, 2011-02)

In this study, regulated and unregulated gaseous emissions and fuel consumption with five different fuels were tested in a 4-cylinder, light-duty diesel EURO IV typically used for the automotive vehicles in Europe. Three ...
Copper-doped titania photocatalysts for simultaneous reduction of CO2 and production of H-2 from aqueous sulfide

Gonell-Gómez, Francisco; Puga Vaca, Alberto; Julián López, Beatriz; García Gómez, Hermenegildo; Corma Canós, Avelino (Elsevier, 2016-01)

Copper-doped titanium dioxide materials with anatase phase (Cu-TiO2, atomic Cu contents ranging from 0 to 3% relative to the sum of Cu and Ti), and particle sizes of 12-15 nm, were synthesised by a solvo-thermal method ...
Desarollo del modelo, simulación y análisis tecnoeconómico de un proceso de coelectrólisis para la producción de gas de síntesis a partir de CO2

Guimerà i Vives, Ramón Vicent (Universitat Politècnica de València, 2024-09-02)

[ES] Este proyecto es una contribución a las tecnologías de descarbonización y reaprovechamiento del dióxido de carbono producido en los procesos de combustión. La tecnología emergente de celdas de óxido sólido (SOEC) es ...
Desarrollo de un sensor de calidad del aire

Albertos Díaz, Alba (Universitat Politècnica de València, 2023-10-24)

[ES] El objetivo de este proyecto es crear un dispositivo que nos permita medir la calidad de aire de cualquier estancia o espacio en interiores. Con este dispositivo obtendremos La temperatura, humedad y niveles de CO2 ...
Development and validation of a finite element model for water - CO2 coaxial gas-coolers

Sanchez, D.; Cabello, R.; Llopis, R.; Torrella Alcaraz, Enrique (Elsevier, 2012-05)

The gas-cooler heat exchanger is a characteristic device of the refrigeration plants that use CO2 as the working fluid in transcritical conditions. The proper gas-cooler sizing, allows getting the maximum effectiveness in ...
Diseño de una unidad de producción de hielo seco

Martínez Gómez, Juan Antonio (Universitat Politècnica de València, 2020-02-12)

[ES] Diseño 3D con programas tipo Inventor, cálculo energético y simulación (ANSYS APDL) de una unidad de producción de hielo seco a partir de dióxido de carbono en estado gaseoso para uso experimental
Efecto del precursor y del promotor en catalizadores de cobalto para la hidrogenación de co2 a metano

Jaunarena González, Daniela Alejandra (Universitat Politècnica de València, 2024-11-04)

[ES] El dióxido de carbono es uno de los principales gases de efecto invernadero, y la creciente preocupación por el cambio climático ha impulsado el desarrollo de nuevas tecnologías para aprovechar el CO2 y reducir la ...
Effects of low pressure exhaust gas recirculation on regulated and unregulated gaseous emissions during NEDC in a light-duty diesel engine

Bermúdez, Vicente; Luján, José M.; Plá Moreno, Benjamín; Linares Rodríguez, Waldemar Gregorio (Elsevier, 2011-09)

Regulated and unregulated gaseous emissions with high pressure and low pressure EGR (exhaust gas recirculation) system were tested in a 4-cylinder, light-duty diesel EURO IV engine typically used in European vehicles. Four ...