International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
Vol. 12, No. 7, 2015, pp. 2119-2126
Bioline Code: st15199
Full paper language: English
Document type: Editorial
Document available free of charge
International Journal of Environment Science and Technology, Vol. 12, No. 7, 2015, pp. 2119-2126
© Copyright 2015 - International Journal of Environment Science and Technology
Preliminary fixed-bed downdraft gasification of birch woodchips|
Sarker, S. & Nielsen, H. K.
This paper investigated the possibilities of
using birch wood chips for fixed-bed downdraft gasification.
The preliminary air gasification resulted producer gas
with an average composition of 11.5 % CO, 5.4 % CO2,
5.9 % H2, 0.38 % CH4 corresponding to a mean lower
heating value of about 2 MJ/kg. The approximate size of
woodchips used for gasification was around 11.5 mm for a
maximum solid throughput of 0.65 kg/h. The obtained
equivalence ratio (ratio between actual air fuel ratio and
stoichometric air fuel ratio) as a result of air and biomass
feed was close to 0.45 which was stable throughout the test.
Producer gas left the gasifier at ca. 150 ° C and was
diverted for flaring owing to the level of low energy content.
Despite availability, the option for gas to generate
heat and electricity via integrated gas engine has not been
utilized in the present case and remained for further
Birch wood; Fixed-bed; Downdraft; Gasification; Producer gas
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