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The Influence of Addition of Carbon Dioxide to the Gasification Medium During the Atmospheric Steam Fluidized Bed Gasification on Sand and Limestone

SYSNO ASEP	0322767
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	The Influence of Addition of Carbon Dioxide to the Gasification Medium During the Atmospheric Steam Fluidized Bed Gasification on Sand and Limestone
Title	Vliv přídavku oxidu uhličitého ke zplyňovacímu médiu při atmosférickém zplyňování vodní parou ve fluidním loži křemenného písku a vápence
Author(s)	Jeremiáš, Michal (UCHP-M)_{RID, ORCID, SAI} Pohořelý, Michael (UCHP-M)_{RID, ORCID, SAI} Vosecký, Martin (UCHP-M) Skoblia, Sergej (UCHP-M) Kameníková, Petra (UCHP-M)_{RID, SAI} Svoboda, Karel (UCHP-M)_{RID, ORCID, SAI} Punčochář, Miroslav (UCHP-M)_{RID, ORCID, SAI}
Number of authors	7
Source Title	Sborník přednášek. - Praha : ČVUT, 2009 / Hrdlička J. - ISBN 978-80-01-04295-3
Pages	s. 80-93
Number of pages	14 s.
Publication form	CD-ROM - CD-ROM
Action	Energetika a biomasa 2009
Event date	18.02.2009-19.02.2009
VEvent location	Praha
Country	CZ - Czech Republic
Event type	EUR
Language	eng - English
Country	CZ - Czech Republic
Keywords	gasification ; fluidized bed ; carbon dioxide
Subject RIV	CI - Industrial Chemistry, Chemical Engineering
R&D Projects	GA104/07/0977 GA ČR - Czech Science Foundation (CSF)
	2B08048 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z40720504 - UCHP-M (2005-2011)
Annotation	The aim of this project was to evaluate the effect of addition of CO2 to the gasification agent during allothermal steam fluidized bed gasification of biomass at constant temperature about 800 °C. Moreover, the effect of different fluidized bed materials such as silica sand and limestone together with the effect of temperature on producer gas composition was also examined. Experiments led to conclusions that CO2 added to the gasification agent was converted to CO to only very limited extent while CO2 dilution effect was relatively strong. The CO2 to CO conversion was exhanced by the use of limestone as the bed material. Limestone showed also strong catalytic activity towards reduction in tar content in the producer gas and higher production of H2, CO2 and CO in comparison with silica sand. Optimal temperature for in the bed-use of limestone in the gasification process was proposed to be around 850 °c under the given experimental conditions.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2009

Number of the records: 1