Abstract
Thermal reactions of ethylene were studied to understand
better the effect of process conditions on tar formation
in biomass gasification. The effects of pressure,
residence time and temperature on thermal reactions of
ethylene were studied. The analysis of products from
methane up to pyrene was performed by the novel online GC
method. Ethylene conversion increased linearly as a
function of pressure and residence time. Tar formation
increased exponentially in the pressure range 1-3.5 bar
and linearly with the residence time. The fraction of
heavier tar compounds was found to increase with
temperature and pressure. The tar composition was
compared with different biomass gasification tar
compositions, and the compositions were found to resemble
each other. The obtained tar-laden product gas could be
used as a realistic tar model when the cleaning of
biomass gasification gas is studied.
Original language | English |
---|---|
Pages (from-to) | 118-127 |
Journal | Fuel |
Volume | 153 |
DOIs | |
Publication status | Published - 2015 |
MoE publication type | A1 Journal article-refereed |
Keywords
- biomass gasification
- ethylene
- gas chromatography
- tar