Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatiles

The performance of fixed and fluidized bed reactors in the steam reforming biomass fast pyrolysis volatiles was compared, with especial attention paying to differences observed catalysts deactivation. experiments were carried out continuous regime a bench scale unit provided conical spouted for step. They on Ni-Ca/Al2O3 commercial catalyst under optimum conditions determined previous studies, i.e., temperature 500 °C, 600 °C steam/biomass ratio 4. Moreover, influence space time analysed both reactors. reactor showed higher initial conversion H2 yield, as it allowed attaining yield than 90 % 10 gcat min gvolatiles?1. However, 15 gvolatiles?1 required obtain similar yield. also led lower Catalyst deactivation mainly related coke deposition, contents used (1.2 mgcoke gcat?1 gbiomass?1) those one (0.6 gbiomass?1). Therefore, two their practical interest discussed.