000080459 001__ 80459
000080459 005__ 20191118100150.0
000080459 0247_ $$2doi$$a10.1016/j.fuel.2017.01.030
000080459 0248_ $$2sideral$$a112810
000080459 037__ $$aART-2017-112810
000080459 041__ $$aeng
000080459 100__ $$0(orcid)0000-0001-7559-9669$$aAbián, M.$$uUniversidad de Zaragoza
000080459 245__ $$aTitanium substituted manganese-ferrite as an oxygen carrier with permanent magnetic properties for chemical looping combustion of solid fuels
000080459 260__ $$c2017
000080459 5060_ $$aAccess copy available to the general public$$fUnrestricted
000080459 5203_ $$aMixed oxides of Mn-Fe have been identified as suitable materials for Chemical Looping Combustion (CLC) with solid fuels both via in-situ Gasification Chemical Looping Combustion (iG-CLC) and Chemical Looping with Oxygen Uncoupling (CLOU) processes. These materials show the property of react with gaseous fuels as well as release oxygen under given conditions, while cheap metals are used. In addition, these materials can show magnetic properties that can be used for an easy separation from ash in CLC with solid fuels. Thus, losses of oxygen carrier material in the ash drain stream would be reduced. Different cations have been proposed for improving the magnetic properties of manganese ferrites, including Ti4+. In this context, the present work accomplishes a screening of (MnxFe1-x)2O3 doped with 7 wt.% TiO2, with x ranging from 0 to 1. The influence of Mn:Fe ratio on their physical and chemical properties was evaluated. In general, particles with high crushing strength values (>4 N) were obtained, and magnetic characteristics were highlighted when x ¿ 0.66. The oxygen uncoupling capability depended on the Mn:Fe ratio and the oxidation conditions, i.e. temperature and oxygen partial pressure. Broader oxidation conditions to take advantage of the oxygen uncoupling capability were found for materials with low Mn content. On contrary, the reactivity with fuel gases (CH4, H2 and CO) increased with the Mn content. Thus, oxygen carriers with Mn/(Mn + Fe) molar ratio in the 0.5–0.9 interval showed interesting properties at suitable temperatures for the iG-CLC and CLOU processes (i.e. 850–980 °C). The material with Mn/(Mn + Fe) = 0.55 was preferred considering a trade-off between reactivity and magnetic properties.
000080459 536__ $$9info:eu-repo/grantAgreement/ES/CSIC/2014-80E101$$9info:eu-repo/grantAgreement/ES/MINECO/ENE2013-45454-R$$9info:eu-repo/grantAgreement/ES/MINECO/ENE2014-56857-R$$9info:eu-repo/grantAgreement/ES/MINECO/FPDI-2013-16172
000080459 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000080459 590__ $$a4.908$$b2017
000080459 591__ $$aENGINEERING, CHEMICAL$$b13 / 137 = 0.095$$c2017$$dQ1$$eT1
000080459 591__ $$aENERGY & FUELS$$b19 / 97 = 0.196$$c2017$$dQ1$$eT1
000080459 592__ $$a1.891$$b2017
000080459 593__ $$aChemical Engineering (miscellaneous)$$c2017$$dQ1
000080459 593__ $$aOrganic Chemistry$$c2017$$dQ1
000080459 593__ $$aFuel Technology$$c2017$$dQ1
000080459 593__ $$aEnergy Engineering and Power Technology$$c2017$$dQ1
000080459 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000080459 700__ $$aAbad, A.
000080459 700__ $$aIzquierdo, M. T.
000080459 700__ $$0(orcid)0000-0002-5959-3168$$aGayán, P.$$uUniversidad de Zaragoza
000080459 700__ $$0(orcid)0000-0001-8960-2689$$ade Diego, L. F.$$uUniversidad de Zaragoza
000080459 700__ $$0(orcid)0000-0002-8704-9274$$aGarcía-Labiano, F.
000080459 700__ $$0(orcid)0000-0002-9705-2207$$aAdánez, J.$$uUniversidad de Zaragoza
000080459 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000080459 7102_ $$15005$$2790$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Tecnologi. Medio Ambiente
000080459 773__ $$g195 (2017), 38-48$$pFuel$$tFUEL$$x0016-2361
000080459 8564_ $$s830184$$uhttp://zaguan.unizar.es/record/80459/files/texto_completo.pdf$$yPostprint
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000080459 909CO $$ooai:zaguan.unizar.es:80459$$particulos$$pdriver
000080459 951__ $$a2019-11-18-09:53:35
000080459 980__ $$aARTICLE