Open AccessDesign, Construction, and Operation of a Fast Pyrolysis Plant for Biomass
Author(s) -
Gerdes C.,
Simon C. M.,
Ollesch T.,
Meier D.,
Kaminsky W.
Publication year - 2002
Publication title -
engineering in life sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.547
H-Index - 57
eISSN - 1618-2863
pISSN - 1618-0240
DOI - 10.1002/1618-2863(200206)2:6<167::aid-elsc167>3.0.co;2-f
Subject(s) - pyrolysis , waste management , biomass (ecology) , pulp and paper industry , levoglucosan , raw material , charcoal , biofuel , lignocellulosic biomass , fluidized bed , environmental science , chlorine , chemistry , organic chemistry , oceanography , aerosol , biomass burning , engineering , geology
Abstract A continuous fluidized‐bed plant (PDU‐scale) for fast pyrolysis of lingnocellulosic biomass gives rise to bio‐oil yields of 65 wt.‐%. The average reactor gas residence time was 1.2 s only. The gas and charcoal yields were 15–20 wt.‐%, respectively. The bio oils were chemically characterized. The main monomeric products of the thermal degradation of carbohydrates are acetic acid, hydroxyacetaldehyde, hydroxypropanone, and levoglucosan. The process described in this paper can also be used for disposal of inorganic‐, metal‐organic‐, and chlorine‐organic contaminated waste‐wood. Inorganic compounds of wood preservatives are concentrated in the charcoal fraction and can be separated easily. Chlorine‐organic wood preservatives are mostly degraded. The process has been positively tested as a technique for disposal, recycling, and exploitation of industrial biomass waste (wood waste, grinding grit, fibre sludge, cocoa shell and modern composites like HPL). Bio oil from fast pyrolysis can be used for the production of energy and chemical feedstock. Research for these purposes is ongoing.