000078770 001__ 78770 000078770 005__ 20200117221602.0 000078770 0247_ $$2doi$$a10.1016/j.fuel.2018.03.048 000078770 0248_ $$2sideral$$a105927 000078770 037__ $$aART-2018-105927 000078770 041__ $$aeng 000078770 100__ $$0(orcid)0000-0002-7767-3057$$aMarrodán, L.$$uUniversidad de Zaragoza 000078770 245__ $$aHigh-pressure ethanol oxidation and its interaction with NO 000078770 260__ $$c2018 000078770 5060_ $$aAccess copy available to the general public$$fUnrestricted 000078770 5203_ $$aEthanol has become a promising biofuel, widely used as a renewable fuel and gasoline additive. Describing the oxidation kinetics of ethanol with high accuracy is required for the development of future efficient combustion devices with lower pollutant emissions. The oxidation process of ethanol, from reducing to oxidizing conditions, and its pressure dependence (20, 40 and 60 bar) has been analyzed in the 500–1100 K temperature range, in a tubular flow reactor under well controlled conditions. The effect of the presence of NO has been also investigated. The experimental results have been interpreted in terms of a detailed chemical kinetic mechanism with the GADM mechanism (Glarborg P, Alzueta MU, Dam-Johansen K and Miller JA, 1998) as a base mechanism but updated, validated, extended by our research group with reactions added from the ethanol oxidation mechanism of Alzueta and Hernández (Alzueta MU and Hernández JM, 2002), and revised according to the present high-pressure conditions and the presence of NO. The final mechanism is able to reproduce the experimental trends observed on the reactants consumption and main products formation during the ethanol oxidation under the conditions studied in this work. The results show that the oxygen availability in the reactant mixture has an almost imperceptible effect on the temperature for the onset of ethanol consumption at a constant pressure, but this consumption is faster for the highest value of air excess ratio (¿) analyzed. Moreover, as the pressure becomes higher, the oxidation of ethanol starts at lower temperatures. The presence of NO promotes ethanol oxidation, due to the increased relevance of the interactions of CH3 radicals and NO2 (from the conversion of NO to NO2 at high pressures and in presence of O2) and the increased concentration of OH radicals from the interaction of NO2 and water. 000078770 536__ $$9info:eu-repo/grantAgreement/ES/DGA/GPT$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/CTQ2015-65226 000078770 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000078770 590__ $$a5.128$$b2018 000078770 591__ $$aENGINEERING, CHEMICAL$$b13 / 138 = 0.094$$c2018$$dQ1$$eT1 000078770 591__ $$aENERGY & FUELS$$b20 / 103 = 0.194$$c2018$$dQ1$$eT1 000078770 592__ $$a1.745$$b2018 000078770 593__ $$aChemical Engineering (miscellaneous)$$c2018$$dQ1 000078770 593__ $$aOrganic Chemistry$$c2018$$dQ1 000078770 593__ $$aFuel Technology$$c2018$$dQ1 000078770 593__ $$aEnergy Engineering and Power Technology$$c2018$$dQ1 000078770 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000078770 700__ $$0(orcid)0000-0002-5971-6842$$aArnal, Á.J. 000078770 700__ $$0(orcid)0000-0001-5426-6486$$aMillera, Á.$$uUniversidad de Zaragoza 000078770 700__ $$0(orcid)0000-0002-5420-0943$$aBilbao, R.$$uUniversidad de Zaragoza 000078770 700__ $$0(orcid)0000-0003-4679-5761$$aAlzueta, M.U.$$uUniversidad de Zaragoza 000078770 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química 000078770 7102_ $$15005$$2790$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Tecnologi. Medio Ambiente 000078770 773__ $$g223 (2018), 394-400$$pFuel$$tFUEL$$x0016-2361 000078770 8564_ $$s722797$$uhttps://zaguan.unizar.es/record/78770/files/texto_completo.pdf$$yPostprint 000078770 8564_ $$s80783$$uhttps://zaguan.unizar.es/record/78770/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000078770 909CO $$ooai:zaguan.unizar.es:78770$$particulos$$pdriver 000078770 951__ $$a2020-01-17-21:43:52 000078770 980__ $$aARTICLE