Abstract
Eucalyptus biomass char was produced by a fluidized bed reactor. The influence of pyrolysis temperature and heating rate on char yield was investigated. The pyrolysis temperature ranged between 673K-1673K. When rapid pyrolysis, char yield was almost constant at about 15%, between 773K-1173K, while was decreased to several % with increased temperature. When slow pyrolysis (10 K/min), char yield was almost kept at 22-17% between 1173K-1673K. Fixed carbon and ash yields in fast pyrolysis char were investigated by NC coder. Fixed carbon yield based on the dry biomass was monotonously decreased and ash yield gave the maximum in the vicinity of 1073K. SEM picture was also given to elucidate the effect on its structure of pyrolysis temperature and heating rate.
