Use of a Reforming Catalyst for Hydrogen Production in the Carbonization Process of Torrefied Biomass
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Author/sLopez-Urionabarrenechea, Alexander; Acha, Esther; Adrados, Aitziber; Solar, Jon; Caballero, Blanca María; [et al.]
The utilization of charcoal from woody biomass is an effcient way to reduce CO2 emissions from the metallurgical industry. The main aim of this work is to study the charcoal production process from torrefied biomass. For this purpose, torrefaction (3 _C min-1, 250 _C, 30 min) and carbonization (3 _C min-1, 750 _C, 30 min) experiments of eucalyptus wood were carried out in a 3.5 L tank reactor. In the carbonization experiments, a thermo-catalytic treatment of the vaporized phase was also performed, with the objective of producing less condensates and H2-rich gases. The results show that the torrefaction pre-treatment does not affect the chemical properties of charcoal but significantly improves the performance of the carbonization process, where more than 50 wt% of charcoal is obtained. In addition, the thermal and thermo-catalytic treatment of the vaporized phase during the carbonization of torrefied biomass yields better results than in the case of fresh biomass. When torrefied biomass ...