000135722 001__ 135722
000135722 005__ 20240614091947.0
000135722 0247_ $$2doi$$a10.1016/j.cattod.2024.114849
000135722 0248_ $$2sideral$$a138733
000135722 037__ $$aART-2024-138733
000135722 041__ $$aeng
000135722 100__ $$0(orcid)0000-0003-2898-1085$$aDurán, P.$$uUniversidad de Zaragoza
000135722 245__ $$aBiogas upgrading through CO2 methanation in a polytropic - distributed feed fixed bed reactor
000135722 260__ $$c2024
000135722 5060_ $$aAccess copy available to the general public$$fUnrestricted
000135722 5203_ $$aMethanation of the CO2 contained in a biogas stream has been experimentally analyzed in a fixed bed reactor with a Ni-Mn catalyst, evaluating the effect of feeding reactants distributed throughout the bed. The performance of different feeding configurations (conventional cofeeding and others implying a lateral distribution of one of the reactive streams) has been analyzed for different nominal temperatures T (250–400 ºC) and weight-related space velocities WHSV (47.71–6.63 gCO2 gcat-1 h-1), always keeping a H2: CO2 ratio of 4:1, and a CH4:CO2 ratio of 7:3. For identical WHSV, the lateral biogas distribution (Poly-Biogas feeding configuration) always showed the best results in terms of activity (higher conversion at the same temperature) and selectivity (lower selectivity to CO in iso-conversion). These better results agree with what was observed in a previous work in methanation of CO2 (i.e., without methane in the feed). In that work, CO2 was distributed along the catalytic bed by several lateral feeds (Poly-CO2). When T was kept constant and WHSV was varied, the reactor fed with distributed biogas (Poly-Biogas), again confirmed its higher efficiency and better selectivity for biogas upgrading (i.e., higher CH4 content). Furthermore, by adopting a Poly-Biogas (or poly-CO2) feeding configuration, a more homogeneous temperature profile was achieved along the bed avoiding the severity of hot spots appearance. In contrast, the lateral distribution of hydrogen (Poly-H2) always led to similar or worse results than those for the conventional co-feeding configuration.
000135722 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2022-136947OB-I00$$9info:eu-repo/grantAgreement/ES/DGA/T43-23R$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-104866RB-I00$$9info:eu-repo/grantAgreement/ES/MICINN/PID2020-113809RB-C31/AEI/10.13039/501100011033$$9info:eu-repo/grantAgreement/ES/MICINN/PRE2020-095679
000135722 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000135722 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000135722 700__ $$0(orcid)0000-0001-6452-4258$$aAragüés-Aldea, P.$$uUniversidad de Zaragoza
000135722 700__ $$0(orcid)0009-0000-5038-2252$$aGonzález-Pizarro, R.$$uUniversidad de Zaragoza
000135722 700__ $$0(orcid)0000-0003-0395-0143$$aMercader, V. D.$$uUniversidad de Zaragoza
000135722 700__ $$0(orcid)0000-0001-9220-9909$$aCazaña, F.$$uUniversidad de Zaragoza
000135722 700__ $$0(orcid)0000-0003-3181-195X$$aFrancés, E.$$uUniversidad de Zaragoza
000135722 700__ $$0(orcid)0000-0002-8383-4996$$aPeña, J. A.$$uUniversidad de Zaragoza
000135722 700__ $$0(orcid)0000-0003-1940-9597$$aHerguido, J.$$uUniversidad de Zaragoza
000135722 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000135722 7102_ $$12012$$2755$$aUniversidad de Zaragoza$$bDpto. Química Física$$cÁrea Química Física
000135722 773__ $$g440 (2024), 114849 [9 pp.]$$pCatal. today$$tCatalysis Today$$x0920-5861
000135722 8564_ $$s2908129$$uhttps://zaguan.unizar.es/record/135722/files/texto_completo.pdf$$yVersión publicada
000135722 8564_ $$s2423463$$uhttps://zaguan.unizar.es/record/135722/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000135722 909CO $$ooai:zaguan.unizar.es:135722$$particulos$$pdriver
000135722 951__ $$a2024-06-14-08:58:48
000135722 980__ $$aARTICLE