CARBON DIOXIDE
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Extraction, Chemical Composition And Antimicrobial Activity Of The Essential Oils Of Pipilongo ( Piper Tuberculatum) Using Supercritical Carbon Dioxide
... Essential oils from pipilongo seeds (Piper tuberculatum) was extracted using supercritical carbon dioxide. The extraction was performed as a function of particle size of the grinded seeds. The highest yield ...
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High pressure carbon dioxide technology: application to orange juice
... In the last years there is an increasing demand for the consumers for minimally processed foods with high quality parameters. Therefore the Food Industry has been focus on finding alternative food processing methods of ...
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Carbon Dioxide Hydrogenation by Means of Plasmonic Resonance Activation in Silica Aerogel Media
... The next variable studied was the amount of catalyst. Variation of the amount inside the aerogel was really easy, because the catalyst was directly diluted in the methanol needed as a precursor for the silica aerogel. ...
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Valorization of Carbon Dioxide through electrocatalytic conversion: Copper electrocatalysts supported in Graphene
... of carbon dioxide into the value of the product has been of great interest in recent years because the annual emissions of this greenhouse gas generate a negative impact on the ...the carbon ...
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Amidinate Aluminium Complexes as Catalysts for Carbon Dioxide Fixation into Cyclic Carbonates
... absence of a solvent. These catalyst systems displayed a broad substrate scope catalysing the formation of cyclic carbonates from aryl, alkyl and functionalised terminal epoxides in good to excellent yields. Moreover, ...
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Carbon dioxide hydrogenation by means of plasmonic resonance activation
... In Chapter III, the optimization of the process was made by the synthesis of a catalyst that absorbed a higher amount of energy from the light. In collaboration with researchers from Ikerbasque, a new method to ...
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Experimental determination of viscosities and densities of mixtures carbon dioxide+1 allyl 3 methylimidazolium chloride Viscosity correlation
... The ionic liquid used in this work was 1-allyl-3-methylimidazolium chloride, [Amim][Cl], purchased from Iolitec (Germany), with a purity higher than 98%. The water contents were determined by Karl-Fischer volumetric ...
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Insertion of carbon dioxide and isocyanide into tantalum amide and tantalum methyl bonds
... [1] (a) J.J. Alexander, in: F.R. Hartley (Ed.), The Chemistry of the Metal – Carbon Bond, Ch. 5, vol. 2, Wiley, New York, 1985. (b) M.F. Lappert, N.T. Luong-Thi, C.J. Milne, Organomet. Chem. 174 (1979) C35. (c) ...
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Carbon Dioxide Titration Method for Soil Respiration Measurements
... in pressure is only because to the oxygen consumption. Some conditions are needed, for example, the sample needs to be in a vessel impermeable to gas. If not, oxygen and carbon dioxide of the air can affect ...
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Essays on atmospheric emissions and environmental policy
... After a short introduction on the topic (Chapter 1), the first analysis proposed in Chapter 2 focused on the evolution of atmospheric emissions. Considering Italy as case study, the aim was to highlight how different ...
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Modeling oxygen dissolution during pulse oxygen additions under oenological conditions
... the carbon dioxide production is the highest; however, the addition is still effective until half of the fermentation (Sablayrolles and Barre, 1986; Blateyron et ...
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Titanium dioxide nanoparticle coating in fluidized bed via supercritical anti-solvent process (SAS)
... density because the solvent power of the carbon dioxide increases and ethanol is better solubilized. On the other hand, there is not a clear tendency in the product size variations with the density. Density ...
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Integration of biogas in the natural gas grid: thermodynamic characterization of a biogas like mixture
... of carbon dioxide (20% to 50%), with small amounts of other components as nitrogen, carbon monoxide and ...higher carbon dioxide content of ...
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Selective growth of palladium and titanium dioxide nanostructures inside carbon nanotube membranes
... these AAO membranes as nanoreactors. We have explored the use of two types of AAO membranes: one was prepared by the anodization of an aluminum foil to obtain a self-supported material (50-μm thick), and the other one ...
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Desarrollo y validación de nuevos procesos analíticos que implican nanomateriales para el control de residuos en alimentos
... nanomaterials, carbon nanotubes (CNTs) have attracted considerable interest since their discovery, due to their intrinsic favorable properties, such as their high mechanical strength, electrical and thermal ...
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