000134985 001__ 134985
000134985 005__ 20240509150149.0
000134985 0247_ $$2doi$$a10.1016/j.ces.2012.10.001
000134985 0248_ $$2sideral$$a81935
000134985 037__ $$aART-2013-81935
000134985 041__ $$aeng
000134985 100__ $$aGálvez, M.E.
000134985 245__ $$aMe (Cu, Co, V)-K/Al2O3 supported catalysts for the simultaneous removal of soot and nitrogen oxides from diesel exhausts
000134985 260__ $$c2013
000134985 5203_ $$aStructured catalysts for the simultaneous removal of soot and nitrogen oxides were prepared by means of coating cordierite monoliths with alumina-based suspensions containing Cu, Co or V and K as the catalytically active phase. Alumina suspensions were prepared using a high dispersible boehmite. Viscosity and pH of this suspension strongly depended on their composition. Highly viscous suspensions led to the formation of cracks and defects that resulted in the detachment of the catalytic layer from the walls. Textural and chemical properties of the coated monoliths were determined by means of N2-physisorption, X-ray diffraction and temperature programmed reduction. Activity of the prepared catalytic filters in the simultaneous removal of soot and nitrogen oxides was tested in a fixed bed installation in the presence of 500 ppm NO and 5% O2 and at temperatures from 250 to 650 °C. Almost complete oxidation of the carbon black employed as soot surrogate was measured in most cases, with NO reduction reaching 50% in the presence of the most active Co–K catalysts. Co-containing catalysts showed higher activity than Cu and V-ones. Enhanced activity can be ascribed to higher ability to generate NO2, but also to particular layer thickness and morphology which facilitate alkali mobility, key issue in the simultaneous removal mechanism.
000134985 536__ $$9info:eu-repo/grantAgreement/ES/DGA/GA-LC-030-2008
000134985 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000134985 590__ $$a2.613$$b2013
000134985 591__ $$aENGINEERING, CHEMICAL$$b24 / 131 = 0.183$$c2013$$dQ1$$eT1
000134985 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000134985 700__ $$0(orcid)0000-0003-4202-9437$$aAscaso, S.
000134985 700__ $$aMoliner, R.
000134985 700__ $$aLázaro, M.J.$$uUniversidad de Zaragoza
000134985 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000134985 773__ $$g87 (2013), 75-90$$pChem. Eng. Sci.$$tCHEMICAL ENGINEERING SCIENCE$$x0009-2509
000134985 8564_ $$s6419920$$uhttps://zaguan.unizar.es/record/134985/files/texto_completo.pdf$$yVersión publicada
000134985 8564_ $$s2483555$$uhttps://zaguan.unizar.es/record/134985/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000134985 909CO $$ooai:zaguan.unizar.es:134985$$particulos$$pdriver
000134985 951__ $$a2024-05-09-13:06:56
000134985 980__ $$aARTICLE