Exploració per tema "Methanol"
Ara es mostren els items 1-20 de 21
-
Binary interaction parameters from reacting mixture data. Supercritical biodiesel process with CO2 as cosolvent
(2019-01-01)
Article
Accés obertA method is presented for the calculation of binary interaction parameters from reacting mixture data. The process studied is the supercritical methanol transesterification of triolein with CO2 as cosolvent. The reaction ... -
Boosted CO2 reaction with methanol to yield dimethyl carbonate over Mg–Al hydrotalcite-silica lyogels
(2013-05-13)
Article
Accés restringit per política de l'editorialNonimmobilized and immobilized Mg–Al hydrotalcite-like materials on silica lyogels were prepared and activated by calcination to be tested as catalysts in the direct carboxylation reaction of methanol. The HTs supportedon ... -
Computer simulation of liquid methanol ii:system size effects
(1991-01)
Article
Accés restringit per política de l'editorialA series of molecular dynamics simulations of liquid methanol has been carried out on a supernode transputer array. Four system sizes from 125 to 512 molecules have been considered, in order to study the effect of system ... -
La destil·lació reactiva al laboratori
(Universitat Politècnica de Catalunya, 2016-07)
Treball Final de Grau
Accés obertLa destil·lació reactiva es fonamenta en fer servir la columna de destil·lació com a propi reactor químic i en el principi de la destil·lació, separar els productes gràcies a la diferència entre els seus punts d’ebullició, ... -
Effect of the solvent on the conformational behavior of the alanine dipeptide deduced from MD simulations
(2017-11-01)
Article
Accés obertIn general, peptides do not exhibit a well-defined conformational profile in solution. However, despite the experimental blurred picture associated with their structure, compelling spectroscopic evidence shows that peptides ... -
Estudi de viabilitat de la conversió de biogàs en metanol
(Universitat Politècnica de Catalunya, 2018-06)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorEn el present treball es recorrerà el camí que s’ha seguit per tal de poder estudiar la viabilitat de la conversió del biogàs en metanol. En una primera instància, es van analitzar quins eren els diferents mètodes que es ... -
Ionic association of Na+-Cl-, Na+-Na+ and Cl--Cl- in methanol: mean force potentials and friction kernels
(1995-08)
Article
Accés restringit per política de l'editorialKinetic investigation of 1-octene bromination in AOT-isooctane-water microemulsions (13 = w = [H2O]/[AOT] = 24 and 6 = z = [IO]/[AOT] = 57) shows that the reaction is first-order in alkene and first-order in bromine, as ... -
Methane potential of fruit and vegetable waste: an evaluation of the semi-continuous anaerobic mono-digestion
(2018-01-01)
Article
Accés restringit per política de l'editorialThe anaerobic digestion (AD) of a high diversity blend of fruit and vegetable waste (FVW) generated in tropical conditions as a single substrate was performed. A continuously stirred tank reactor (CSTR) operated in ... -
Methanol steam reforming behavior of copper impregnated over CeO2-ZrO2 derived from a surfactant assisted coprecipitation route
(2015-09-07)
Article
Accés obertA series of ceria-zirconia solid solutions has been prepared by a surfactant assisted coprecipitation method. After impregnation of copper, their activities have been assessed for methanol steam reforming. The results ... -
Methanol steam reforming behavior of sol-gel synthesized nanodimensional CuxFe1-xAl2O4 hercynites
(2019-01-25)
Article
Accés obertThis work reports the outstanding catalytic activity behavior of sol-gel synthesized nanostructured CuxFe1-xAl2O4 (0.3¿=¿x¿=¿0.8; named as CuFeAln, where n¿=¿30, 40, 50, 60, 70 and 80) hercynites towards methanol steam ... -
Molecular engineering to introduce carbonyl between nickel salophen active sites to enhance electrochemical CO2 reduction to methanol
(Elsevier, 2022-10-05)
Article
Accés obertThe electrochemical reduction of CO2 to methanol is a potentially cost-effective strategy to reduce the concentration of this greenhouse gas while at the same time producing a value-added chemical. Herein, we detail a ... -
NiSn bimetallic nanoparticles as stable electrocatalysts for methanol oxidation reaction
(2018-10-15)
Article
Accés obertNickel is an excellent alternative catalyst to high cost Pt and Pt-group metals as anode material in direct methanol fuel cells. However, nickel presents a relatively low stability under operation conditions, even in ... -
On the positional and orientational order of water and methanol around indole: a study on the microscopic origin of solubility
(2016-09-07)
Article
Accés obertAlthough they are both highly polar liquids, there are a number of compounds, such as many pharmaceuticals, which show vastly different solubilities in methanol compared with water. From theories of the hydrophobic effect, ... -
Orientational dynamics in methanol: influence of temperature and hydrogen bonding
(2020-03-01)
Article
Accés obertRotational diffusion has been investigated in methanol by means of molecular dynamics simulations at several temperatures, approaching the supercooled state. Angular velocity autocorrelation functions in the molecule-fixed ... -
Producción de biocombustibles renovables a partir de residuos sólidos urbanos e hidrógeno verde
(Universitat Politècnica de Catalunya, 2023-10-02)
Treball Final de Grau
Accés restringit per decisió de l'autorEl projecte proposat ve orientat pels principis de l'economia circular i la sostenibilitat, la protecció del medi ambient i sobretot, la reducció de la petjada de carboni. Aquest projecte pretén ajudar en la transició cap ... -
Single step combustion synthesized Cu/Ce0.8Zr0.2O2 for methanol steam reforming: Structural insights from in situ XPS and HRTEM studies
(2015-11-02)
Article
Accés obertSingle step combustion synthesized Cu (5–15 at.-%)/Ce0.8Zr0.2O2 materials containing highly dispersed copper have been assessed for methanol steam reforming (MSR). The activity patterns suggest Cu (10 at.-%)/Ce0.80Zr0.20O2 ... -
Solar-to-fuels-Research: Charge Transfer, SternVolmer, and Photocatalytic activity study of [Fe-p- (TMA)]-CNQD Hybrid Catalyst
(Universitat Politècnica de Catalunya, 2022-10-28)
Treball Final de Grau
Accés restringit per acord de confidencialitat
Realitzat a/amb: Chalmers tekniska högskola -
Thermodynamic properties of the methanol and ethanol mixture from experimental speed of sound data
(Universitat Politècnica de Catalunya, 2022-07-04)
Treball Final de Grau
Accés obert
Realitzat a/amb: Technische Universität Berlin / Kungliga Tekniska högskolanIn the present work, the thermodynamic properties of speed of sound, density and isobaric heat capacity are reported for the 3:1 methanol - ethanol mixture at temperatures between 298.15 and 333.15 K and pressures up to ... -
Three-dimensional ruthenium-doped TiO2 sea urchins for enhanced visible-light-responsive H-2 production
(2016-06-21)
Article
Accés obertThree-dimensional (3D) monodispersed sea urchin-like Ru-doped rutile TiO2 hierarchical architectures composed of radially aligned, densely-packed TiO2 nanorods have been successfully synthesized via an acid-hydrothermal ... -
Ultradispersed metal-based catalysts for CO2 hydrogenation
(Universitat Politècnica de Catalunya, 2021-01)
Treball Final de Grau
Accés obert
Realitzat a/amb: Université Claude Bernard Lyon 1An excess of atmospheric CO2 can have serious long-term consequences for life on our planet. Therefore, multiple strategies have been proposed to eliminate it. Among all of them, heterogeneous catalysis of the CO2 hydrogenation ...