Reactivity of the biomass chars originating from reed, douglas fir, and pine

Link, S; Arvelakis, S; Hupa, M; Yrjas, P; Kulaots, I; Paist, A

dc.contributor.author	Link, S	en
dc.contributor.author	Arvelakis, S	en
dc.contributor.author	Hupa, M	en
dc.contributor.author	Yrjas, P	en
dc.contributor.author	Kulaots, I	en
dc.contributor.author	Paist, A	en
dc.date.accessioned	2014-03-01T01:34:24Z
dc.date.available	2014-03-01T01:34:24Z
dc.date.issued	2010	en
dc.identifier.issn	0887-0624	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20728
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Active site	en
dc.subject.other	Alkali earth	en
dc.subject.other	Biomass char	en
dc.subject.other	Char gasification	en
dc.subject.other	Chemical compositions	en
dc.subject.other	Douglas fir	en
dc.subject.other	Free basis	en
dc.subject.other	Gasification reactivity	en
dc.subject.other	High Si content	en
dc.subject.other	Internal surface area	en
dc.subject.other	Iron content	en
dc.subject.other	Metal content	en
dc.subject.other	Micro-porous structure	en
dc.subject.other	Oxidation reactivity	en
dc.subject.other	Pyrolysis and gasification	en
dc.subject.other	Reactivity measurements	en
dc.subject.other	Si content	en
dc.subject.other	Silicon contents	en
dc.subject.other	Specific surface area measurement	en
dc.subject.other	Ultimate analysis	en
dc.subject.other	Alkalinity	en
dc.subject.other	Chemical analysis	en
dc.subject.other	Gasification	en
dc.subject.other	Geochemistry	en
dc.subject.other	Ore pellets	en
dc.subject.other	Pelletizing	en
dc.subject.other	Porous silicon	en
dc.subject.other	Pyrolysis	en
dc.subject.other	Specific surface area	en
dc.subject.other	Wood products	en
dc.subject.other	Alkalinity	en
dc.subject.other	Chemical Analysis	en
dc.subject.other	Gasification	en
dc.subject.other	Geochemistry	en
dc.subject.other	Pellets	en
dc.subject.other	Pseudotsuga	en
dc.subject.other	Pyrolysis	en
dc.subject.other	Residues	en
dc.subject.other	Silica	en
dc.subject.other	Specific Surface	en
dc.subject.other	Wood Products	en
dc.title	Reactivity of the biomass chars originating from reed, douglas fir, and pine	en
heal.type	journalArticle	en
heal.identifier.primary	10.1021/ef100926v	en
heal.identifier.secondary	http://dx.doi.org/10.1021/ef100926v	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	In this study, the oxidation reactivity of the chars derived from the pyrolysis of reed, pine pellets, and Douglas fir wood chips was investigated. The direct reactivity measurements were compared to the results from the indirect reactivity methods used to characterize the physical properties and chemical composition of material, such as proximate and ultimate analyses, ash chemical analysis, and specific surface area measurements. The direct reactivity measurements of the chars showed that the reed chars had lower reactivity compared to the chars derived from woods. The pine pellet char exhibited higher reactivity compared to the reed and Douglas fir wood chip char. The reed char showed the lowest reactivity because of high reaction inhibitor silicon content in the char, and in comparison to the Douglas fir wood chip char, the contents of alkali, alkali earth, and iron together were lower as well. The reed sample exhibited the highest char gasification yield on a dry and ash-free basis and the highest total residue yield after pyrolysis and gasification as well. The results of this study imply that the highly microporous structure together with a higher internal surface area and number of active sites and low Si content of the pine pellet char had a stronger impact on the gasification reactivity than the alkali/alkali earth metal contents of the Douglas fir wood chip and reed chars. The activity of alkali/alkali earth metals on gasification catalysis was inhibited by high Si content in the case of Douglas fir wood chip and reed chars, and the higher Si content and lower alkali, alkali earth, and iron contents together for the reed char are expected to be a main reason for the lower gasification reactivity compared to the Douglas fir wood chip char. © 2010 American Chemical Society.	en
heal.publisher	AMER CHEMICAL SOC	en
heal.journalName	Energy and Fuels	en
dc.identifier.doi	10.1021/ef100926v	en
dc.identifier.isi	ISI:000285266000041	en
dc.identifier.volume	24	en
dc.identifier.issue	12	en
dc.identifier.spage	6533	en
dc.identifier.epage	6539	en