The partial dehydrogenation of hydrocarbon blends may be a suitable way to produce H2 on-board of automotives or airplanes to feed fuel cells and produce electric power, avoiding storage problems. In this work very interesting data have been collected using Jet A-1 surrogate and Pt-Sn/gamma-Al2O3 catalysts, operating at 450°C and feeding the vaporised hydrocarbon blend without any carrier gas. The use of Pt-Sn catalyst with 1:1 (w/w) ratio leads to the best compromise between activity and stability with time-on-stream, due to the formation of Pt-rich alloys. Neverthless, all studied catalysts exhibited limited thio-tolerance. In optimized reaction conditions, H2 productivity of 3000 NL/kg cat/h, sufficient to produce 3 kW of electric power, considering purification steps and a fuel efficiency of 50%, was obtained.
C. Lucarelli, S. Albonetti, A. Vaccari, C. Resini, G. TAillides, J. Roziere, et al. (2011). On-board H2 generation by catalytic dehydrogenation of hydrocarbon mixtures or fuels. CATALYSIS TODAY, 175, 504-508 [10.1016/j.cattod.2011.02.056].
On-board H2 generation by catalytic dehydrogenation of hydrocarbon mixtures or fuels
C. Lucarelli;ALBONETTI, STEFANIA;VACCARI, ANGELO;
2011
Abstract
The partial dehydrogenation of hydrocarbon blends may be a suitable way to produce H2 on-board of automotives or airplanes to feed fuel cells and produce electric power, avoiding storage problems. In this work very interesting data have been collected using Jet A-1 surrogate and Pt-Sn/gamma-Al2O3 catalysts, operating at 450°C and feeding the vaporised hydrocarbon blend without any carrier gas. The use of Pt-Sn catalyst with 1:1 (w/w) ratio leads to the best compromise between activity and stability with time-on-stream, due to the formation of Pt-rich alloys. Neverthless, all studied catalysts exhibited limited thio-tolerance. In optimized reaction conditions, H2 productivity of 3000 NL/kg cat/h, sufficient to produce 3 kW of electric power, considering purification steps and a fuel efficiency of 50%, was obtained.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
