[TC2015] fast pyrolysis characteristics of biomass in a conical spouted bed reactor

Abstract

In this study, the hydrodynamics of the conical spouted bed reactor was examined to find out stable spouting regime and appropriate gas residence time. And the effects of pyrolysis reaction temperature for the production of the bio‐oil in a conical spouted bed reactor were scrutinized by fast pyrolysis experiment. Stable hydrodynamic operating ranges were identified by evaluation of the pressure drop curve and RMS analysis. The yield of the bio‐oil reached a maximum of 50.8 wt % at reaction temperature of 500°C, while the yield of the char decreased as the reaction temperature increased. Also, the yield of the non‐condensable gas increased when the reaction temperature increased. The water content of the bio‐oil was lowest, 26.1wt %, at 500°C, and the high heating value was highest, 18.4 MJ/kg, at 500°C. © 2016 American Institute of Chemical Engineers Environ Prog, 36: 685–689, 2017

Numerical investigation of the reactive gas–solid characteristics in biomass fast pyrolysis of conical spouted reactor equipped with draft tube

“…Finally, this model was validated regarding chemical reactions. Figure 3C compares the compositions from biomass fast pyrolysis between experiment 38 and simulation. Detailed setups can be found in our previous work 26 .…”

“…Presentation of the used spouted bed (A), model validations regarding (B) radial solid volume fraction, pyrolysis compositions with experiment 38 (C), and previous simulation 32 (D).…”