STUDIES ON REACTION CONDITIONS OF BIOMASS FLASH PYROLYSIS BY PYROLYSIS GAS CHROMATOGRAPHY

The behavior of biomass flash pyrolysis was studied by pyrolysis gas chromatography.This paper mainly investigated the pyrolysis product distribution of poplar-sawdust at atmospheric pressure, a range of temperatures between 400℃ and 800℃, the heating rates of 500℃/s, 250℃/s and 100℃/s, and the several volatile residence times (0.6s～4s).The experimental results revealed that the pyrolysis product distribution notably depended on the pyrolysis conditions: pyrolysis temperature, volatile residence time and the heating rate.Under the operating conditions of pyrolysis temperature: 500℃, volatile residence time: 0.6s and the heating rate: 500℃/s, the maximum liquid yield 80% was obtain.The results of material balance showed that the study means and analytical method were feasible.