| Página principal > Artículos > On the oxy-combustion of lignite and corn stover in a lab-scale fluidized bed reactor > MARC |
000079110 001__ 79110 000079110 005__ 20190709135425.0 000079110 0247_ $$2doi$$a10.1016/j.biombioe.2016.11.013 000079110 0248_ $$2sideral$$a97523 000079110 037__ $$aART-2017-97523 000079110 041__ $$aeng 000079110 100__ $$aLupiáñez, Carlos 000079110 245__ $$aOn the oxy-combustion of lignite and corn stover in a lab-scale fluidized bed reactor 000079110 260__ $$c2017 000079110 5060_ $$aAccess copy available to the general public$$fUnrestricted 000079110 5203_ $$aThis paper addresses an experimental investigation concerning oxy-combustion of coal and biomass in a lab-scale fluidized bed reactor. While co-firing has been widely studied under conventional air conditions, few experiences are available to date for O2/CO2 atmospheres. The research is focused on SO2 and NOx emissions, along with the deposition rates and ashes mineralogy. The influences of the atmosphere (air vs. 30/70% O2/CO2), the coal-to-biomass energy input ratio (80/20%, 90/10%), the chlorine mass fraction in the biomass (0.35%, 1%, 2%) and the Ca:S mole ratio (2.5, 4) are reported and discussed in the paper, for two specific fuels: high sulfur lignite and high chlorine corn stover. Concerning SO2 emissions a correlation among the sulfur and the chlorine contents is clearly detected, being affected by the direct desulfurization mechanism occurring under oxy-firing conditions. The single effect of the chlorine content is found to be almost 1.5% of the desulfurization efficiency. NOx emissions are otherwise more dependent on oxygen excess and CO concentration in the reactor, rather than the fuel share or the chlorine supplied. Thick deposition is only detected when chlorine content in the corn is 2%. Potassium aluminosilication is found to be enhanced in comparison to potassium sulfation under oxy-firing, especially for the highest Ca:S mole ratio: observed aluminosilication is five times higher when Ca:S ratio is increased from 2.5 to 4. A significant enrichment in iron is also detected for the fly ash composition, with an increase of 30–50% in comparison to air combustion. 000079110 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/ENE2012-39114 000079110 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000079110 590__ $$a3.358$$b2017 000079110 591__ $$aAGRICULTURAL ENGINEERING$$b3 / 14 = 0.214$$c2017$$dQ1$$eT1 000079110 591__ $$aBIOTECHNOLOGY & APPLIED MICROBIOLOGY$$b45 / 160 = 0.281$$c2017$$dQ2$$eT1 000079110 591__ $$aENERGY & FUELS$$b36 / 97 = 0.371$$c2017$$dQ2$$eT2 000079110 592__ $$a1.235$$b2017 000079110 593__ $$aAgronomy and Crop Science$$c2017$$dQ1 000079110 593__ $$aWaste Management and Disposal$$c2017$$dQ1 000079110 593__ $$aRenewable Energy, Sustainability and the Environment$$c2017$$dQ1 000079110 593__ $$aForestry$$c2017$$dQ1 000079110 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000079110 700__ $$aMayoral, M. Carmen 000079110 700__ $$0(orcid)0000-0003-4304-6685$$aDíez, Luis I.$$uUniversidad de Zaragoza 000079110 700__ $$aPueyo, Eloy 000079110 700__ $$aEspatolero, Sergio 000079110 700__ $$0(orcid)0000-0002-8609-7389$$aAndrés, J. Manuel 000079110 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi. 000079110 773__ $$g96 (2017), 152-161 [26 p.]$$pBiomass bioenergy$$tBIOMASS & BIOENERGY$$x0961-9534 000079110 8564_ $$s929848$$uhttps://zaguan.unizar.es/record/79110/files/texto_completo.pdf$$yPostprint 000079110 8564_ $$s74834$$uhttps://zaguan.unizar.es/record/79110/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000079110 909CO $$ooai:zaguan.unizar.es:79110$$particulos$$pdriver 000079110 951__ $$a2019-07-09-11:29:10 000079110 980__ $$aARTICLE
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