BIOMASS PYROLYSIS FOR LIQUIDS IN CIRCULATING FLUIDIZED BED(CFB)REACTOR
With the CFB as main reactor,an integrated facility was developed for the fast pyrolysis of biomass.In this facility，the bed is divided into two zones according to the pyrolysis and secondary reactions，the main chemical processes can be modelled.Based on the variation of the pyrolysis gas composition and the bio-oil ingredients,analysis of the experimental data highlights the important effects of temperature,heating rate and residence time.The main trend is that the higher temperature and longer residence time would contribute to the secondary reaction and the lower heating rate favors the carbonization,which both reduce the liquid production.In this study,the best bio-oil yield is 63%in weight.The component analysis of bio-oil shows that most compounds in bio-oil are nonhydrocarbons,while alkanes,aromatics and bitumen are relatively low.The physical properties of bio-oil include the high water and oxygen content,and the low pH and LHV.
NETL
NSTL
万方数据
维普
