000061808 001__ 61808
000061808 005__ 20200221144341.0
000061808 0247_ $$2doi$$a10.1016/j.fuproc.2016.01.035
000061808 0248_ $$2sideral$$a93712
000061808 037__ $$aART-2016-93712
000061808 041__ $$aeng
000061808 100__ $$0(orcid)0000-0003-3315-5933$$aRemón, J.
000061808 245__ $$aAnalysis and optimisation of H2 production from crude glycerol by steam reforming using a novel two step process
000061808 260__ $$c2016
000061808 5060_ $$aAccess copy available to the general public$$fUnrestricted
000061808 5203_ $$aThis work studies the valorisation of biodiesel-derived glycerol to produce a hydrogen rich gas by means of a two-step sequential process. Firstly, the crude glycerol was purified with acetic acid to reduce problematical impurities. The effect of the final pH (5-7) on the neutralisation process was addressed and it was found that a pH of 6 provided the best phase separation and the greatest glycerol purity. Secondly, the refined glycerol was upgraded by catalytic steam reforming and this step was theoretically and experimentally studied. The theoretical study analyses the effect of the temperature (400-700°C), glycerol concentration (10-50 wt.%) and N2 (225-1347 cm3 STP/min) and liquid flow (0.5-1 mL/min) rates on the thermodynamic composition of the gas. The results show that the temperature and glycerol concentration exerted the greatest influence on the thermodynamics. The experimental study considers the effect of the temperature (400-700°C), glycerol concentration (10-50 wt.%) and spatial time (3-17 g catalyst min/g glycerol) on the product distribution in carbon basis (gas, liquid and solid) and on the composition of the gas and liquid phases. The experiments were planned according to a 2 level 3 factor Box-Wilson Central Composite Face Centred (CCF, a: ± 1) design, which is suitable for studying the influence of each variable as well as all the possible interactions between variables. The results were analysed with an analysis of variance (ANOVA) with 95% confidence, enabling the optimisation of the process. The gas phase was made up of a mixture of H2 (65-95 vol.%), CO2 (2-29 vol.%), CO (0-18 vol.%) and CH4 (0-5 vol.%). Temperatures of 550°C and above enabled thermodynamic compositions for the gas to be achieved and helped diminish carbon formation. A possible optimum for H2 production was found at a temperature of around 680°C, feeding a glycerol solution of 37 wt.% and using a spatial time of 3 g catalyst min/g glycerol. These conditions provide a 95% carbon conversion to gas, having the following composition: 67 vol.% H2, 22 vol.% CO2, 11 vol.% CO and 1 vol.% CH4.
000061808 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/BES-2011-044856$$9info:eu-repo/grantAgreement/ES/MINECO/ENE2010-18985$$9info:eu-repo/grantAgreement/ES/MINECO/ENE2013-41523-R
000061808 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000061808 590__ $$a3.752$$b2016
000061808 591__ $$aCHEMISTRY, APPLIED$$b8 / 72 = 0.111$$c2016$$dQ1$$eT1
000061808 591__ $$aENGINEERING, CHEMICAL$$b17 / 135 = 0.126$$c2016$$dQ1$$eT1
000061808 591__ $$aENERGY & FUELS$$b23 / 92 = 0.25$$c2016$$dQ1$$eT1
000061808 592__ $$a1.397$$b2016
000061808 593__ $$aChemical Engineering (miscellaneous)$$c2016$$dQ1
000061808 593__ $$aFuel Technology$$c2016$$dQ1
000061808 593__ $$aEnergy Engineering and Power Technology$$c2016$$dQ1
000061808 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000061808 700__ $$0(orcid)0000-0002-8551-2552$$aJarauta-Córdoba, C.$$uUniversidad de Zaragoza
000061808 700__ $$0(orcid)0000-0001-7115-9025$$aGarcía, L.$$uUniversidad de Zaragoza
000061808 700__ $$0(orcid)0000-0002-5959-3168$$aArauzo, J.$$uUniversidad de Zaragoza
000061808 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000061808 773__ $$g145 (2016), 130-147$$pFuel process. technol.$$tFuel Processing Technology$$x0378-3820
000061808 8564_ $$s711358$$uhttps://zaguan.unizar.es/record/61808/files/texto_completo.pdf$$yPostprint
000061808 8564_ $$s72158$$uhttps://zaguan.unizar.es/record/61808/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000061808 909CO $$ooai:zaguan.unizar.es:61808$$particulos$$pdriver
000061808 951__ $$a2020-02-21-13:50:22
000061808 980__ $$aARTICLE