000151406 001__ 151406
000151406 005__ 20251017144634.0
000151406 0247_ $$2doi$$a10.1016/j.jcou.2025.103038
000151406 0248_ $$2sideral$$a143096
000151406 037__ $$aART-2025-143096
000151406 041__ $$aeng
000151406 100__ $$0(orcid)0000-0001-6452-4258$$aAragüés-Aldea, P.$$uUniversidad de Zaragoza
000151406 245__ $$aBiogas upgrading through CO2 methanation in a multiple-inlet fixed bed reactor: Simulated parametric analysis
000151406 260__ $$c2025
000151406 5060_ $$aAccess copy available to the general public$$fUnrestricted
000151406 5203_ $$aA simulation of the catalytic CO2 methanation reaction was carried out, evaluating the effect of reactants distributed feeding throughout the bed. The main operational parameters were studied in a multiple-inlet reactor to test their effect on conversions and, most importantly, on selectivities towards both CO and CH4 as reaction products. The analyzed parameters were, firstly, the number of feeding points (N) and the dosage degree of reactants, followed by temperature (T), partial pressures of reactants (H2:CO2 ratios), and the composition of a sweetened biogas as feeding stream (CH4:CO2 ratios). It is confirmed that a distribution of biogas through several side inlets improves selectivities to the desired CH4 product, over other feeding configurations. The effect of distributing reactants becomes intensified when the number of lateral feedings increases. This observation supports the experimental trends already proven in previous works. Regarding main operation parameters such as temperature and H2:CO2 molar ratio, the analysis confirmed that their influence on selectivities acts just as predicted at low conversions. However, when these conversions become higher the space velocity (WHSV) is the most important factor for selectivities. Finally, no significant changes in reaction performance were obtained when modifying the biogas CH4:CO2 ratio in the broad range of methane concentrations from 55 v% to 70 v%.
000151406 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2022-136947OB-I00$$9info:eu-repo/grantAgreement/ES/DGA/T43-23R$$9info:eu-repo/grantAgreement/ES/MICINN/PRE2020-095679
000151406 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000151406 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000151406 700__ $$0(orcid)0000-0003-0395-0143$$aMercader, V. D.$$uUniversidad de Zaragoza
000151406 700__ $$0(orcid)0000-0003-2898-1085$$aDurán, P.$$uUniversidad de Zaragoza
000151406 700__ $$0(orcid)0000-0003-3181-195X$$aFrancés, E.$$uUniversidad de Zaragoza
000151406 700__ $$0(orcid)0000-0002-8383-4996$$aPeña, J. A.$$uUniversidad de Zaragoza
000151406 700__ $$0(orcid)0000-0003-1940-9597$$aHerguido, J.$$uUniversidad de Zaragoza
000151406 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000151406 7102_ $$15005$$2X$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cProy. investigación HKA
000151406 773__ $$g93 (2025), 103038 [10 pp.]$$pJ. CO2 util.$$tJournal of CO2 Utilization$$x2212-9820
000151406 8564_ $$s1904801$$uhttps://zaguan.unizar.es/record/151406/files/texto_completo.pdf$$yVersión publicada
000151406 8564_ $$s2542575$$uhttps://zaguan.unizar.es/record/151406/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000151406 909CO $$ooai:zaguan.unizar.es:151406$$particulos$$pdriver
000151406 951__ $$a2025-10-17-14:28:01
000151406 980__ $$aARTICLE