0381791 - ÚCHP 2013 CZ eng C - Conference Paper (international conference)
Svoboda, Karel - Pohořelý, Michael - Jeremiáš, Michal - Kameníková, Petra - Skoblia, S. - Beňo, Z. - Šyc, Michal
Concentration of HCl, HF and Sulfur Compounds in Fuel Gas from Fluidized Bed Gasification of Coals and Wood by Steam-Oxygen Mixtures.
Final Program. Praha: Orgit, 2012, P3.199. ISBN 978-80-905035-1-9.
[International Congress of Chemical and Process Engineering CHISA 2012 and 15th Conference PRES 2012 /20./. Prague (CZ), 25.08.2012-29.08.2012]
R&D Projects: GA TA ČR TA01020366
Grant - others:RFCS(XE) RFCR-CT-2010-00009,
Institutional support: RVO:67985858
Keywords : fluidized bed * gasification * coal
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
Result website:
www.chisa.cz/2012

We have concentrated in our study on FB gasification of two kinds of coals differing in reactivity, ash content and composition and hard wood at temperature 850 oC. Our attention was particularly devoted to speciation of sulfur compounds, presence of HCl, HF and tar compounds in fuel gas. Silica sand and mixture of silica sand with gradually added dolomite was used as basic particulate bed material in FB gasification. The results have shown that presence of dolomite particles in the fluidized bed and presence of dolomite dust reduces concentrations of all sulfur species, but the reduction of thiophene concentration is more pronounced. Presence of dolomite in FB causes substantial decrease of HCl concentration and moderate decrease of HF concentration in fuel gas. Accumulation of char and ash with active calcium based components leads to moderate reduction of HCl and sulfur compounds concentration in fuel gas.
Permanent Link: http://hdl.handle.net/11104/0212181