BackExaminar OpenAire por departamento (eus.) "Ingeniaritza kimikoa"
Now showing items 21-33 of 33
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Insights into the Reaction Routes for H2 Formation in the Ethanol Steam Reforming on a Catalyst Derived from NiAl2O4 Spinel
(American Chemical Society, 2021-11-04)[EN]This work describes the satisfactory performance of a Ni/Al2O3 catalyst derived from NiAl2O4 spinel in ethanol steam reforming and focuses on studying the prevailing reaction routes for H-2 formation in this system. ... -
Investigation of hot char catalytic role in the pyrolysis of waste tires in a two-step process
Wang, Fengchao; Gao, Ningbo; Quan, Cui; López Zabalbeitia, Gartzen
(Elsevier, 2019-12-30)
[EN] This study pursues the valorization of waste tires by pyrolysis using a different approach for tire parts, specifically, the tire tread rubber and side wall rubber. Tire tread rubber was used to produce hot char with ... -
Kinetic modeling and reactor design of the direct synthesis of dimethyl ether for CO2 valorization. A review
; ; ; Aguayo Urquijo, Andrés Tomás; (Elsevier, 2022-08-04)
The direct synthesis of dimethyl ether (DME) is considered one of the most attractive routes for valorizing CO2 and syngas on a large scale. DME has a high cetane number and its properties are similar to those of liquefied ... -
New trends in catalysis for sustainable CO2 conversion
(MDPI, 2022-10-23)Over the past few decades, there have been many advances in the world, leading to improvements in quality of life. Due to demographic and industrial growth, consumption has increased, as well as the amount of waste and ... -
On the pyrolysis of different microalgae species in a conical spouted bed reactor: Bio-fuel yields and characterization
Azizi, Kolsoom; Moraveji, Mostafa Keshavarz; ; ; López Zabalbeitia, Gartzen; Olazar Aurrecoechea, Martin (Elsevier B.V., 2020-05-20)
The aim of this work was to study fast pyrolysis of three microalgae species in a continuous bench-scale conical spouted bed reactor at 500 °C. Bio-gas, bio-oil and bio-char yields have been determined and characterized ... -
Progress on Catalyst Development for the Steam Reforming of Biomass and Waste Plastics Pyrolysis Volatiles: A Review
Santamaría Moreno, Laura; López Zabalbeitia, Gartzen ; Fernández Sáenz, Enara ; Cortázar Dueñas, María ; ; Olazar Aurrecoechea, Martin ; (American Chemical Society, 2021-11-04)
[EN]n recent decades, the production of H-2 from biomass, waste plastics, and their mixtures has attracted increasing attention in the literature in order to overcome the environmental problems associated with global warming ... -
Pyrolysis of plastic wastes in a fountain confined conical spouted bed reactor: determination of stable operating conditions
; ; López Zabalbeitia, Gartzen; ; ; Olazar Aurrecoechea, Martin (Elsevier, 2020-12-31)
[EN] The performance of both fluidized and spouted bed reactors in the pyrolysis of waste plastics is conditioned by particle agglomeration phenomena, which worsen the quality of the gas-solid contact and eventually lead ... -
Role of temperature in the biomass steam pyrolysis in a conical spouted bed reactor
Fernández Sáenz, Enara; Santamaría Moreno, Laura ; ; ; ; López Zabalbeitia, Gartzen ; ; Olazar Aurrecoechea, Martin (Elsevier, 2022-01-01)
[EN] The steam pyrolysis of pinewood sawdust has been conducted in a bench scale plant provided with a conical spouted bed reactor (CSBR). This process is of uttermost relevance for the in-line valorisation of pyrolysis ... -
Sorption enhanced ethanol steam reforming on a bifunctional Ni/CaO catalyst for H-2 production
Cortázar Dueñas, María; Sun, Shuzhuang; Wu, Chunfei; Santamaría Moreno, Laura ; Olazar Barona, Leire; Fernández Sáenz, Enara ; ; López Zabalbeitia, Gartzen ; Olazar Aurrecoechea, Martin (Elsevier, 2021-12)
[EN]The activity and stability of a 10 wt%NiO/CaO catalyst were tested in the sorption enhanced ethanol steam reforming (SEESR) in a fluidized bed reactor. The effect of temperature in the 600-750 degrees C range was ... -
Stability of a NiAl2O4 Derived Catalyst in the Ethanol Steam Reforming in Reaction-Regeneration Cycles: Effect of Reduction Temperature
(MDPI, 2022-05-17)The catalyst regeneration is still a challenge to make the ethanol steam reforming (ESR) process feasible for sustainable H2 production. NiAl2O4 spinel derived catalysts are highly active and selective for ESR, but they ... -
Strategies for the intensification of CO2 valorization in the one-step dimethyl ether synthesis process
; ; ; Aguayo Urquijo, Andrés Tomás (ACS, 2019-12-16)
The intensification of CO2 valorization has been theoretically studied in the direct synthesis of dimethyl ether (DME) carried out in a packed-bed reactor by means of two strategies pursuing the attenuation of the thermodynamic ... -
Thermodynamic assessment of the oxidative steam reforming of biomass fast pyrolysis volatiles
López Zabalbeitia, Gartzen; García González, Irati; ; Santamaría Moreno, Laura ; ; ; ; Olazar Aurrecoechea, Martin (Elsevier B.V, 2020-04-30)
[EN] The joint process of pyrolysis-steam reforming is a novel and promising strategy for hydrogen production from biomass; however, it is conditioned by the endothermicity of the reforming reaction and the fast catalyst ... -
Waste tyre valorization by catalytic pyrolysis – A review
; López Zabalbeitia, Gartzen; ; ; ; Olazar Aurrecoechea, Martin (Elsevier, 2020-06-05)
[EN] The environmental concern associated with waste tyre disposal and the necessity of sustainable waste management policies has promoted the development of waste tyre valorization processes in the last decades. Within ...