Behavior of Heavy Metals in Steam Fluidized Bed Gasification of Contaminated Biomass

0359852 - ÚCHP 2012 RIV US eng J - Journal Article
Šyc, Michal - Pohořelý, Michael - Jeremiáš, Michal - Vosecký, Martin - Kameníková, Petra - Skoblia, Sergej - Svoboda, Karel - Punčochář, Miroslav
Behavior of Heavy Metals in Steam Fluidized Bed Gasification of Contaminated Biomass.
Energy and Fuels. Roč. 25, č. 5 (2011), s. 2284-2291. ISSN 0887-0624. E-ISSN 1520-5029
R&D Projects: GA ČR(CZ) GA104/07/0977; GA MŠMT 2B08048
Institutional research plan: CEZ:AV0Z40720504
Keywords : gasification * heavy metals * contaminated biomass
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
Impact factor: 2.721, year: 2011

The present paper deals with flax (40 wt. %) and hardwood (60 wt. %) co-gasification with particular focus on the distribution of heavy metals to both solid and gaseous gasification products. The blended fuel was gasified by steam in a fluidized bed gasifier at about 850 °C and steam to biomass ratio of 1.01 kg kg-1. Concentrations of selected heavy metals (Cd, Cu, Ni, Pb and Zn) were determined in bed ash, cyclone ash and in downstream producer gas. From the analysis it follows that under the given experimental conditions the subsequent order of heavy metals volatility can be found: Cd (mostly in producer gas) > Pb > Zn > Cu > Ni. Heavy metals concentrations in the producer gas (nitrogen free, dry gas) were determined in the range of 0.37–4.2 mg m-3.
Permanent Link: http://hdl.handle.net/11104/0197554