149094 20251017144546.0 doi 10.1016/j.fuproc.2015.05.034 sideral 90915 ART-2015-90915 eng Remón, J. Universidad de Zaragoza (orcid)0000-0003-3315-5933 Effect of acetic acid, methanol and potassium hydroxide on the catalytic steam reforming of glycerol: Thermodynamic and experimental study 2015 Access copy available to the general public Unrestricted The present work analyses the effect on the reforming process of biodiesel crude glycerol of three impurities commonly found in this product. The influence of the presence of CH3OH (0–5 wt.%) and/or CH3COOH (0–3 wt.%) and/or KOH (0–2.8 wt.%) during the catalytic steam reforming of a 30 wt.% glycerol aqueous solution has been evaluated theoretically, studying the equilibrium composition of the gas, and experimentally in a fluidised bed reactor at 550 °C. The presence of the aforementioned impurities has a weak impact on the thermodynamic gas composition. However, they significantly influence the product distribution (in carbon basis) obtained experimentally. The carbon of the feed converted into gas, solid and liquid products varied as follows: 75–100%, 0–25% and 0–2.5%. CH3OH alone does not alter the results obtained with pure glycerol. In contrast, CH3COOH and KOH decrease the initial production of gases. This decrease is very high for KOH due to the formation of char. However, its progressive accumulation inside the reactor exerts a positive catalytic effect on the gasification of this char, augmenting the gas production over time. The composition of the gas was little affected by the presence of the impurities. The gas phase was made up of a mixture of H2 (66–70 vol.%), CO2 (24–29 vol.%), CO (3–6 vol.%) and CH4 (0.5–2.5 vol.%). The liquid phase consisted of a mixture of alcohols, ketones, cyclic compounds, aldehydes and phenols info:eu-repo/grantAgreement/ES/MINECO/BES-2011-044856 info:eu-repo/grantAgreement/ES/MINECO/ENE2010-18985 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.847 2015 CHEMISTRY, APPLIED 9 / 72 = 0.125 2015 Q1 T1 ENGINEERING, CHEMICAL 18 / 135 = 0.133 2015 Q1 T1 ENERGY & FUELS 19 / 88 = 0.216 2015 Q1 T1 1.501 2015 Chemical Engineering (miscellaneous) 2015 Q1 Fuel Technology 2015 Q1 Energy Engineering and Power Technology 2015 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Mercado, V. García, L. Universidad de Zaragoza (orcid)0000-0001-7115-9025 Arauzo, J. Universidad de Zaragoza (orcid)0000-0002-5959-3168 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 138 (2015), 325-336 Fuel process. technol. Fuel Processing Technology 0378-3820 853054 http://zaguan.unizar.es/record/149094/files/texto_completo.pdf Postprint 1520023 http://zaguan.unizar.es/record/149094/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:149094 articulos driver 2025-10-17-14:10:02 ARTICLE