Browsing OpenAire by Author "Bilbao Elorriaga, Javier"
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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 ; Bilbao Elorriaga, Javier; 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 ... -
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; Bilbao Elorriaga, Javier; 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 ... -
Catalytic steam reforming of biomass fast pyrolysis volatiles over Ni-Co bimetallic catalysts
Santamaría Moreno, Laura ; López Zabalbeitia, Gartzen ; Arregi Joaristi, Aitor; Artetxe Uria, Maite; Amutio Izaguirre, Maider; Bilbao Elorriaga, Javier; Olazar Aurrecoechea, Martin (Elsevier, 2020-08-11)[EN] The influence of the metal selected as catalytic active phase in the two-step biomass pyrolysis-catalytic reforming strategy has been analyzed. The pyrolysis step was carried out in a conical spouted bed reactor at ... -
CeO2 and La2O3 promoters in the steam reforming of polyolefinic waste plastic pyrolysis volatiles on Ni-based catalysts
Arregi Joaristi, Aitor; Abbas-Abadi, Mehrdad Seifali; López Zabalbeitia, Gartzen ; Santamaría Moreno, Laura ; Artetxe Uria, Maite; Bilbao Elorriaga, Javier; Olazar Aurrecoechea, Martin (American Chemical Society, 2020-11-09)[EN] Based on the promising results of La2O3 and CeO2 promoted Ni/Al2O3 catalysts in the reforming of biomass pyrolysis volatiles, the performance of these catalysts and the non-promoted one was 2 evaluated in the pyrolysis ... -
Conditions for the joint conversion of CO2 and syngas in the direct synthesis of light olefins using In2O3−ZrO2/SAPO-34 catalyst
Portillo Bazaco, Ander; Ateka Bilbao, Ainara; Ereña Loizaga, Javier; Aguayo Urquijo, Andrés Tomás ; Bilbao Elorriaga, Javier (ACS, 2021-11-09)The conditions for promoting the joint conversion of CO2 and syngas in the direct synthesis of light olefins have been studied. In addition, given the relevance for the viability of the process, the stability of the ... -
Conversion of HDPE into Value Products by Fast Pyrolysis Using FCC Spent Catalysts in a Fountain Confined Conical Spouted Bed Reactor
Orozco Hernández, Santiago; Artetxe Uria, Maite; López Zabalbeitia, Gartzen ; Suárez Cardona, Mayra Alejandra; Bilbao Elorriaga, Javier; Olazar Aurrecoechea, Martin (Wiley, 2021-10-05)Continuous catalytic cracking of polyethylene over a spent fluid catalytic cracking (FCC) catalyst was studied in a conical spouted bed reactor (CSBR) with fountain confiner and draft tube. The effect of temperature (475-600 ... -
Cost-effective upgrading of biomass pyrolysis oil using activated dolomite as a basic catalyst
Valle Pascual, Beatriz; García Gómez, Naiara; Remiro Eguskiza, Aingeru; Gayubo Cazorla, Ana Guadalupe; Bilbao Elorriaga, Javier (Elsevier B.V., 2019-07-19)This study deals with a continuous process on a calcined dolomite operating at atmospheric pressure and by cofeeding water for cost-effective upgrading of raw bio-oil at 400 °C and 500 °C. The distribution of carbon in ... -
Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil
Bonura, Giuseppe; Frusteri, Francesco; Bilbao Elorriaga, Javier; Castaño Sánchez, Pedro (Royal Society of Chemistry, 2020-11-01)The formation, growth and transformation of the carbon residue (coke) deposited on the catalyst during the raw bio-oil hydrodeoxygenation have been studied. These deposits have a great impact on the overall process ... -
Effect of CeO2 and MgO promoters on the performance of a Ni/Al2O3 catalyst in the steam reforming of biomass pyrolysis volatiles
Santamaría Moreno, Laura ; Artetxe Uria, Maite; López Zabalbeitia, Gartzen ; Cortázar Dueñas, María ; Amutio Izaguirre, Maider; Bilbao Elorriaga, Javier; Olazar Aurrecoechea, Martin (Elsevier B.V., 2019-10-25)A Ni/Al2O3 catalyst has been modified incorporating CeO2 and MgO promoters in order to improve its performance in the steam reforming of biomass pyrolysis volatiles. Ni/Al2O3, Ni/CeO2-Al2O3 and Ni/MgO-Al2O3 catalysts have ... -
Effect of La2O3 promotion on a Ni/Al2O3 catalyst for H2 production in the inline biomass pyrolysis-reforming
Santamaría Moreno, Laura ; Arregi Joaristi, Aitor; López Zabalbeitia, Gartzen ; Artetxe Uria, Maite; Amutio Izaguirre, Maider; Bilbao Elorriaga, Javier; Olazar Aurrecoechea, Martin (Elsevier B.V., 2019-11-19)[EN] The effect of La2O3 addition on a Ni/Al2O3 catalyst has been studied in the biomass pyrolysis and in-line catalytic steam reforming process. The results obtained using homemade catalysts (Ni/Al2O3 and Ni/La2O3-Al2O3) ... -
Effect of reaction conditions on the deactivation by coke of a NiAl2O4 spinel derived catalyst in the steam reforming of bio-oil
García Gómez, Naiara; Valecillos Díaz, José del Rosario; Remiro Eguskiza, Aingeru; Valle Pascual, Beatriz; Bilbao Elorriaga, Javier; Gayubo Cazorla, Ana Guadalupe (Elsevier, 2021-11-15)[EN]The steam reforming of bio-oil is a promising and economically feasible technology for the sustainable H-2 production, yet with the main challenge of designing highly active and stable catalysts. This work aimed to ... -
Experimental implementation of a catalytic membrane reactor for the direct synthesis of DME from H2+CO/CO2
Rodríguez Vega, Pablo; Ateka Bilbao, Ainara; Kumakiri, Izumi; Vicente García, Héctor; Ereña Loizaga, Javier; Aguayo Urquijo, Andrés Tomás ; Bilbao Elorriaga, Javier (Elsevier, 2021-01-05)The direct synthesis of dimethyl ether (DME) by the hydrogenation of CO2 and CO2/COx mixtures has been studied in an original packed bed membrane reactor (PBMR). The role of the hydrophilic LTA zeolite membrane is to remove ... -
Experimental study and modeling of biomass char gasification kinetics in a novel thermogravimetric flow reactor
Cortázar Dueñas, María ; López Zabalbeitia, Gartzen ; Álvarez Gordejuela, Jon; Arregi Joaristi, Aitor; Amutio Izaguirre, Maider; Bilbao Elorriaga, Javier; Olazar Aurrecoechea, Martin (Elsevier B.V., 2020-04-25)[EN]This work pursues the validation of a new reactor for the evaluation of char gasification kinetics. This novel reactor allows continuous gas flow through the fixed bed sample and accurately monitoring the mass loss ... -
Fe/Olivine As Primary Catalyst in the Biomass Steam Gasification in a Fountain Confined Spouted Bed Reactor
Cortázar Dueñas, María ; Santamaría Moreno, Laura ; López Zabalbeitia, Gartzen ; Álvarez Gordejuela, Jon; Amutio Izaguirre, Maider; Bilbao Elorriaga, Javier; Olazar Aurrecoechea, Martin (Elsevier, 2021-07-25)The performance of Fe/olivine catalysts was tested in the continuous steam gasification of sawdust in a bench scale plant provided with a fountain confined conical spouted bed reactor at 850 degrees C. Olivine was used as ... -
Hydrogen Pressure as a Key Parameter to Control the Quality of the Naphtha Produced in the Hydrocracking of an HDPE/VGO Blend
Vela Díaz, Francisco Javier; Palos Urrutia, Roberto; Bilbao Elorriaga, Javier; Arandes Esteban, José María ; Gutiérrez Lorenzo, Alazne (MDPI, 2022-05-16)The hydrocracking of high-density polyethylene (HDPE) blended with vacuum gas oil (VGO) has been studied to assess the effect of H2 pressure on the yield and composition of the products and with the aim of obtaining ... -
Influence of reactor and condensation system design on tyre pyrolysis products yields
Mkhize, Ntandoyenkosi Malusi; Danon, Bart; Álvarez Gordejuela, Jon; Amutio Izaguirre, Maider; Bilbao Elorriaga, Javier; Olazar Aurrecoechea, Martin ; Van der Gryp, Percy; Görgens, Johann Ferdinand (Elsevier B.V., 2019-09-07)This study investigates the effect the pyrolysis reactor and the condensing system type have on the tyre derived oil (TDO) and DL-limonene yield, as well as benzothiazole concentration in the TDO. All the experiments were ... -
Insights into the Reaction Routes for H2 Formation in the Ethanol Steam Reforming on a Catalyst Derived from NiAl2O4 Spinel
Valecillos Díaz, José del Rosario; Iglesias Vázquez, Sergio; Landa Bilbao, Leire; Remiro Eguskiza, Aingeru; Bilbao Elorriaga, Javier; Gayubo Cazorla, Ana Guadalupe (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. ... -
Kinetic modeling and reactor design of the direct synthesis of dimethyl ether for CO2 valorization. A review
Ateka Bilbao, Ainara; Rodríguez Vega, Pablo; Ereña Loizaga, Javier; Aguayo Urquijo, Andrés Tomás ; Bilbao Elorriaga, Javier (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 ... -
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 ; Arregi Joaristi, Aitor; Olazar Aurrecoechea, Martin ; Bilbao Elorriaga, Javier (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
Orozco Hernández, Santiago; Álvarez Gordejuela, Jon; López Zabalbeitia, Gartzen ; Artetxe Uria, Maite; Bilbao Elorriaga, Javier; 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 ...