BackExaminar por departamento (cas.) "Ingeniería química"
Now showing items 1-20 of 142
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A Data-Driven Reaction Network for the Fluid Catalytic Cracking of Waste Feeds
; Hita, Idoia
; Rodríguez Alvarez, María Elena ; Arandes Esteban, José María ; Castaño Sánchez, Pedro (MDPI, 2018-11-27)
Establishing a reaction network is of uttermost importance in complex catalytic processes such as fluid catalytic cracking (FCC). This step is the seed for a faithful reactor modeling and the subsequent catalyst re-design, ... -
A Hybrid FCC/HZSM-5 Catalyst for the Catalytic Cracking of a VGO/Bio-Oil Blend in FCC Conditions
Ibarra, Álvaro; Hita del Olmo, Idoia; Arandes Esteban, José María; Bilbao, Javier (MDPI, 2020)
The performance of a commercial FCC catalyst (designated as CY) and a physically mixed hybrid catalyst (80 wt.% CY and 20 wt.% HZSM-5-based catalyst, designated as CH) have been compared in the catalytic cracking of a ... -
A review on the valorization of CO2. Focusing on the thermodynamics and catalyst design studies of the direct synthesis of dimethyl ether
Ateka Bilbao, Ainara; Rodríguez Vega, Pablo ; Ereña Loizaga, Javier ; Aguayo Urquijo, Andrés Tomás ; (Elsevier, 2022-08)
The direct synthesis of dimethyl ether (DME) on bifunctional catalysts is highly attractive for valorizing CO2 and syngas derived from biomass gasification and is a key process to reduce greenhouse gas emissions. DME economy ... -
A techno-economic and life cycle assessment for the production of green methanol from CO2: catalyst and process bottlenecks
Cordero Lanzac, Tomás; ; ; ; ; ; Aguayo Urquijo, Andrés Tomás ; ; (Elsevier, 2022-05)
The success of catalytic schemes for the large-scale valorization of CO2 does not only depend on the development of active, selective and stable catalytic materials but also on the overall process design. Here we present ... -
Activity and stability of different Fe loaded primary catalysts for tar elimination
Cortázar Dueñas, María; Álvarez Gordejuela, Jon ; ; Santamaría Moreno, Laura ; López Zabalbeitia, Gartzen ; ; ; Olazar Aurrecoechea, Martin (Elsevier, 2022-06)
[EN] The performance of olivine, dolomite and gamma-alumina primary catalysts was evaluated in the continuous tar elimination process in which toluene was selected as the biomass gasification tar model compound. Iron was ... -
Aftertreatment DeNOx Systems for Future Light Duty Lean-Burned Emission Regulations
Pereda Ayo, Beñat; González Velasco, Juan Ramón (MDPI, 2021-02-01)
Future light duty vehicles in Europe and the United States are required to be certified, owing to progressively more and more stringent regulations [...] -
Alternativas operacionales en tecnologías de oxidación avanzada para el tratamiento de efluentes de alta carga contaminante
Sanz Alonso, Josu (Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2010-10-28)
La célula de combustible de membrana polimérica puede constituir uno de los elementos clave para la materialización de un sistema energético basado en el hidrógeno como vector energético. Pero estos dispositivos electroquímicos ... -
Alternative catalytic processes for the valorization of plastic wastes to fuels .
(2016-10-21)The first chapter analyses the state of the art on plastic production and mainsectors of application, and on generation of plastic wastes, focused on theenvironmental problem generated by uncontrolled dumping and the ... -
Analysis of hydrogen production potential from waste plastics by pyrolysis and in line oxidative steam reforming
Cortázar Dueñas, María; ; ; ; López Zabalbeitia, Gartzen ; ; Santamaría Moreno, Laura ; Amutio Izaguirre, Maider ; Olazar Aurrecoechea, Martin (Elsevier, 2022-01)
[EN] A study was carried out on the valorization of different waste plastics (HDPE, PP, PS and PE), their mixtures and biomass/HDPE mixtures by means of pyrolysis and in line oxidative steam reforming. A thermodynamic ... -
Analysis of Pyrolysis Kinetic Parameters Based on Various Mathematical Models for More than Twenty Different Biomasses: A Review
; ; ; ; ; ; ; Aguado Zárraga, Roberto (MDPI, 2022-09-07)
Today, energy use is an important and urgent issue for economic development worldwide. It is expected that raw material in the form of biomass and lignocellulosic residues will become increasingly significant sources of ... -
Analysis of Ultrasonic Pre-Treatment for the ozonation of Humic Acids
; Ferreiro Santiso, Cristian; ; ; Lombraña Alonso, José Ignacio ; (Elsevier, 2021-03)
This paper presents an intensification study of an ozonation process through an ultrasonic pre-treatment for the elimination of humic substances in water and thus, improve the quality of water treatment systems for human ... -
Análisis y adecuación de los procesos de electromigración y transporte en células de combustible PEM de hidrógeno
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2011-06-07)La célula de combustible de membrana polimérica puede constituir uno de los elementos clave para la materialización de un sistema energético basado en el hidrógeno como vector energético. Pero estos dispositivos electroquímicos ... -
Applicability of LaNiO3-derived catalysts as dual function materials for CO2 capture and in-situ conversion to methane
Onrubia Calvo, Jon Ander; ; ; Pereda Ayo, Beñat ; González Marcos, José Antonio ; González Velasco, Juan Ramón (Elsevier, 2022-07-15)
The valorisation of CO2 through its capture and in-situ hydrogenation to methane, using dual function materials (DFMs), emerges as promising alternative to reduce CO2 emissions to atmosphere and the global cost of current ... -
Application of a Combined Adsorption−Ozonation Process for Phenolic Wastewater Treatment in a Continuous Fixed-Bed Reactor
Ferreiro Santiso, Cristian; De Luis Álvarez, Ana María ; Villota Salazar, Natalia ; Lomas Esteban, José María ; Lombraña Alonso, José Ignacio ; Camarero Estela, Luis Miguel (MDPI, 2021-08-22)
This work studied the removal of phenol from industrial effluents through catalytic ozonation in the presence of granular activated carbon in a continuous fixed-bed reactor. Phenol was chosen as model pollutant because of ... -
Aprovechamiento de CO2 para la producción de gas natural sintético (GNS) mediante metanación con H2 renovable
Quindimil Rengel, Adrián (2021-10-29)
The impact of human activity on the Earth and related anthropogenic CO2 emissions have significantly elevated GHG concentration in atmosphere leading to global warming of around 1.5°C since preindustrial period, which is ... -
Aqueous-Phase Glycerol Conversion over Ni-Based Catalysts Synthesized by Nanocasting
Morales Marín, Adriana; Iriarte Velasco, Unai ; Gutiérrez Ortiz, Miguel Angel ; Ayastuy Arizti, José Luis (MDPI, 2022)
[EN] A morphological strategy consisting of nanocasting synthesis of nickel aluminate spinel precursor was addressed. Two nanocasted catalysts were synthesized involving different template-removal procedures (i.e., ... -
Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatiles
Fernández Sáenz, Enara; Amutio Izaguirre, Maider ; Artetxe Uria, Maite ; Arregi Joaristi, Aitor ; Santamaría Moreno, Laura ; López Zabalbeitia, Gartzen ; ; Olazar Aurrecoechea, Martin (Elsevier, 2020-08-02)
[EN] The performance of fixed and fluidized bed reactors in the steam reforming of biomass fast pyrolysis volatiles was compared, with especial attention paying to the differences observed in catalysts deactivation. The ... -
Avances en el modelado de la combustión de biomasa en spouted bed cónico
(2015-06-23)En aras del desarrollo de un modelo riguroso para la combustión de biomasa vegetal en lecho en surtidor, en este Trabajo se ha avanzado en cuatro pilares fundamentales cuya implementación en el futuro permitirá desarrollar ... -
Bed symmetry in the fountain confined conical spouted beds with open-sided draft tubes
Tellabide Vecina, Mikel; Estiati Larrea, Idoia ; Achutegui Narbona, Aitor ; Altzibar Manterola, Haritz ; ; Olazar Aurrecoechea, Martin (Elsevier, 2022-05-13)
Bed symmetry has been analysed in fountain confined conical spouted beds operating with fine particles. Thus, vertical particle velocities and the spout shape have been determined in a wide range of spouting air velocities ... -
Beneficial effects of nickel promoter on the efficiency of alumina-supported Co3O4 catalysts for lean methane oxidation
Choya Atencia, Andoni; De Rivas Martín, Beatriz ; Gutiérrez Ortiz, José Ignacio ; López Fonseca, Rubén (Elsevier, 2022-12)
In this work bimetallic Ni catalysts supported over Co-Al2O3 and monometallic Co-Al2O3 and Ni-Al2O3 catalysts were examined for the complete oxidation of methane. With a 30 % total metallic loading, the samples were ...