Fast pyrolysis of biomass : an experimental study on mechanisms influencing yield and composition of the products
Hoekstra, Elly (2011) Fast pyrolysis of biomass : an experimental study on mechanisms influencing yield and composition of the products. thesis.
|Abstract:||Pyrolysis oil originating from biomass has the potential to replace ‘crude fossil oil’ and to
produce fuels and chemicals in a more sustainable way. The favorable perspective of fast
pyrolysis as biomass pre-treatment step is directly related to the production of a liquid as
main product and the significantly higher density of the oil (~1200 kg/m3) compared to
the original biomass (~150 kg/m3). The resulting transportation and storage benefits leads
to the concept of small decentralized fast pyrolysis plants for production of oil to be
transported to a central processing plant.
Despite the large number of studies, the understanding of the chemical reactions and
physical processes occurring in the fast pyrolysis process is limited. The same holds for
the influence of reaction conditions on the yield and composition of the products. Alleged
process requirements to obtain high oil yields are recently challenged in literature, based
on experimental evidence. At the moment information to make a reliable science based
process design of a pyrolysis unit is lacking. This thesis provides clarification in two
First, the initial decomposition reactions in the converting biomass in combination with
the transport out of the particles of the decay fragments are studied.
Secondly, the homogeneous and heterogeneous reactions of the vapors (including
aerosols) are investigated.
Science and Technology (TNW)
|Link to this item:||http://purl.utwente.nl/publications/78495|
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