Effect of oxygen addition, reaction temperature and thermal treatments on syngas production from biogas combined reforming using Rh/alumina catalysts
| dc.contributor.author | Navarro Puyuelo, Andrea | |
| dc.contributor.author | Reyero Zaragoza, Inés | |
| dc.contributor.author | Moral Larrasoaña, Ainara | |
| dc.contributor.author | Bimbela Serrano, Fernando | |
| dc.contributor.author | Bañares, Miguel A. | |
| dc.contributor.author | Gandía Pascual, Luis | |
| dc.contributor.department | Ciencias | es_ES |
| dc.contributor.department | Zientziak | eu |
| dc.contributor.department | Institute for Advanced Materials and Mathematics - INAMAT2 | en |
| dc.date.accessioned | 2024-02-08T17:26:47Z | |
| dc.date.available | 2024-02-08T17:26:47Z | |
| dc.date.issued | 2019 | |
| dc.date.updated | 2024-02-08T17:15:45Z | |
| dc.description.abstract | Dry reforming and partial oxidation of biogas were studied using 0.5 wt.% Rh/Al2O3 catalysts, both inhouse prepared and commercial. The effects of O2 addition on syngas yield and biogas conversion were studied at 700 C using different O2/CH4 ratios in the gas feeding stream: 0 (dry reforming), 0.12, 0.25, 0.45 and 0.50. The highest CH4 conversion, H2 yield and H2/CO molar ratio were obtained with an O2/CH4 ratio of 0.45, even though simultaneous valorization of both CH4 and CO2 could be best attained when the O2/CH4 ratio was 0.12. Increased biogas conversions and syngas yields were obtained by increasing reaction temperatures between 650 and 750 C. A detrimental influence on catalytic activity could be observed when the catalyst was subjected to calcination. Increasing the hold time of the thermal conditioning of the catalyst under inert flow altered Rh dispersion, though had no significant impact on catalyst performance in the dry reforming of methane at 700 C and 150 N L CH4/(gcat h). Characterization of spent samples after reaction by Raman spectroscopy revealed the presence of carbonaceous deposits of different nature, especially on the commercial(named as Rh com) and calcined (Rh calc) catalysts, though oxygen addition in the biogas feed significantly reduced the amount of these deposits. The Rh catalysts that had not been calcined after impregnation (Rh prep) did not present any noticeable characteristic peaks in the G and D bands. In particular, scanning transmission electron microscopy (STEM) images of the spent Rh prep sample revealed the presence of very highly dispersed Rh nanoparticles after reaction, of particle sizes of about 1 nm, and no noticeable C deposits. Combined oxy-CO2 reforming of biogas using highly dispersed and low metal-loading Rh/Al2O3 catalysts with low O2 dosage in the reactor feed can be used to effectively transform biogas into syngas. | en |
| dc.description.sponsorship | The authors thank the Spanish Ministerio de Economía, Industria y Competitividad (MINECO) (ENE2015-66975-C3), Spanish Ministerio de Ciencia, Innovación y Universidades (RTI2018- 096294-B-C31), and the European Regional Development Fund (ERDF/FEDER) for the financial support. MINECO and ERDF/FEDER are also thanked for the pre-doctoral aid (BES-2016-077866) awarded to Andrea Navarro and for funding the contract of Dr. Ainara Moral. The Universidad Pública de Navarra (UPNA) is also acknowledged for the post-doctoral aid awarded to Inés Reyero. | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Navarro-Puyuelo, A., Reyero, I., Moral, A., Bimbela, F., Bañares, M.A., Gandía, L.M. (2019) Effect of oxygen addition, reaction temperature and thermal treatments on syngas production from biogas combined reforming using Rh/alumina catalysts. Journal of Industrial and Engineering Chemistry, 80, 217-226. https://doi.org/10.1016/j.jiec.2019.07.051. | en |
| dc.identifier.doi | 10.1016/j.jiec.2019.07.051 | |
| dc.identifier.issn | 1226-086X | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/47380 | |
| dc.language.iso | eng | en |
| dc.publisher | Elsevier | en |
| dc.relation.ispartof | Journal of Industrial and Engineering Chemistry 80, 2019, 217-226 | en |
| dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//ENE2015-66975-C3-1-R/ES/ | |
| dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-096294-B-C31/ES/ | |
| dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//BES-2016-077866/ | |
| dc.relation.publisherversion | https://doi.org/10.1016/j.jiec.2019.07.051 | |
| dc.rights | © 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Biogas reforming | en |
| dc.subject | Dry reforming | en |
| dc.subject | Partial oxidation | en |
| dc.subject | Rh catalyst | en |
| dc.subject | Syngas | en |
| dc.title | Effect of oxygen addition, reaction temperature and thermal treatments on syngas production from biogas combined reforming using Rh/alumina catalysts | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/acceptedVersion | |
| dspace.entity.type | Publication | |
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