Dear all, I see that combustion of biomass has it own problems. As far as I know TPS burns wood chips or straw pellets in a circulating fluidised bed. But, unfortunately, I have no reports whether this works well or causes trouble. I will think about gasification for combustion as you have given some good reasons for it. However, it still sounds a little bit strange. Thank you. Martin Adorni The Gasification List is sponsored by USDOE BioPower Program http://www.eren.doe.gov/biopower/ and PRM Energy Systems http://www.prmenergy.com Other Sponsors, Archives and Information http://www.nrel.gov/bioam/ http://www.crest.org/renewables/gasification-list-archive http://solstice.crest.org/renewables/biomass-info/gasref.shtml http://www.crest.org/renewables/biomass-info/ http://www.crest.org/renewables/biomass-info/carbon.shtml