期刊
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
卷 93, 期 -, 页码 129-138出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2011.10.007
关键词
Biomass; Bio-oil; Condenser; Fast pyrolysis; Fluidized bed; Stage fractions
资金
- Department of Energy [DE-FG36-07GO87003]
Bio-oil from fast pyrolysis of biomass consists of hundreds of compounds with a wide range of molecular weights. These include both volatile and non-volatile compounds and viscous oligomers, which complicates recovery of the liquid product from vapors and aerosols generated during pyrolysis. We have developed a bio-oil recovery system that overcomes the fouling problems that commonly occur in conventional condensers, allowing recovery of stage fractions (SF) of bio-oil with distinctive chemical and physical properties. The concept has been evaluated in an 8 kg/h process development unit (PDU) consisting of a fluidized bed pyrolyzer, hot cyclones, and a series of condensers and electrostatic precipitators (ESPs) that recover five stage fractions. Red oak was pyrolyzed in the PDU and the resulting stage fractions of bio-oil analyzed for moisture, modified acid number (MAN), water insoluble content, solids content, higher heating value (HHV), kinematic viscosity and chemical composition. (C) 2011 Published by Elsevier B.V.
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