000075762 001__ 75762
000075762 005__ 20190709135423.0
000075762 0247_ $$2doi$$a10.1016/j.fuproc.2016.10.026
000075762 0248_ $$2sideral$$a97121
000075762 037__ $$aART-2017-97121
000075762 041__ $$aeng
000075762 100__ $$aTelesca, A.
000075762 245__ $$aUse of oxyfuel combustion ash for the production of blended cements: a synergetic solution toward reduction of CO2 emissions
000075762 260__ $$c2017
000075762 5060_ $$aAccess copy available to the general public$$fUnrestricted
000075762 5203_ $$aIn this paper, it is investigated the possibility of reusing ashes, issued by an oxyfuel combustion process aimed at mitigating CO2 emission, as substitutes for natural pozzolan in the production of low-CO2 blended cements. To this end, the oxyfuel plant (a 95 kWth pilot-scale fluidized bed reactor) was operated under controlled conditions by feeding blends of anthracite or lignite and biomass corn stover. Characterization of fly and bottom ashes revealed that the latter showed properties able to make them considerable for obtaining blended cements by mixing them with Portland clinker and natural gypsum. The cements were subjected to pozzolanicity and hydration tests for curing times ranging from 2 to 28 d at 20° and 40 °C. X-ray fluorescence and diffraction, differential thermal–thermogravimetric analyses and scanning electron microscopy were employed as characterization techniques. With reference to a standard blended cement, and with particular eye on the blended cement containing bottom ashes obtained from the lignite–biomass mixture combustion, it was observed a good similarity in the ability of the silico-aluminous fraction to react with Ca(OH)2 produced by Portland clinker hydration, to yield the desired calcium silicate hydrates among the hydration products.
000075762 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000075762 590__ $$a3.956$$b2017
000075762 591__ $$aCHEMISTRY, APPLIED$$b8 / 71 = 0.113$$c2017$$dQ1$$eT1
000075762 591__ $$aENGINEERING, CHEMICAL$$b21 / 137 = 0.153$$c2017$$dQ1$$eT1
000075762 591__ $$aENERGY & FUELS$$b29 / 97 = 0.299$$c2017$$dQ2$$eT1
000075762 592__ $$a1.453$$b2017
000075762 593__ $$aChemical Engineering (miscellaneous)$$c2017$$dQ1
000075762 593__ $$aFuel Technology$$c2017$$dQ1
000075762 593__ $$aEnergy Engineering and Power Technology$$c2017$$dQ1
000075762 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/submittedVersion
000075762 700__ $$aMarroccoli, M.
000075762 700__ $$aIbris, N.
000075762 700__ $$aLupiáñez, C.
000075762 700__ $$0(orcid)0000-0003-4304-6685$$aDíez, L. I.$$uUniversidad de Zaragoza
000075762 700__ $$0(orcid)0000-0001-7379-6159$$aRomeo, L. M.$$uUniversidad de Zaragoza
000075762 700__ $$aMontagnaro, F.
000075762 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi.
000075762 773__ $$g156 (2017), 211-220$$pFuel process. technol.$$tFuel Processing Technology$$x0378-3820
000075762 8564_ $$s1456139$$uhttps://zaguan.unizar.es/record/75762/files/texto_completo.pdf$$yPreprint
000075762 8564_ $$s46663$$uhttps://zaguan.unizar.es/record/75762/files/texto_completo.jpg?subformat=icon$$xicon$$yPreprint
000075762 909CO $$ooai:zaguan.unizar.es:75762$$particulos$$pdriver
000075762 951__ $$a2019-07-09-11:27:38
000075762 980__ $$aARTICLE