Effect of leaching on the ash behavior of olive residue during fluidized bed gasification

Arvelakis, S; Gehrmann, H; Beckmann, M; Koukios, EG

dc.contributor.author	Arvelakis, S	en
dc.contributor.author	Gehrmann, H	en
dc.contributor.author	Beckmann, M	en
dc.contributor.author	Koukios, EG	en
dc.date.accessioned	2014-03-01T01:17:46Z
dc.date.available	2014-03-01T01:17:46Z
dc.date.issued	2002	en
dc.identifier.issn	0961-9534	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14656
dc.subject	Agglomeration	en
dc.subject	Ash	en
dc.subject	Deposition	en
dc.subject	Gasification	en
dc.subject	Leaching	en
dc.subject	Olive residue	en
dc.subject	Sintering	en
dc.subject.classification	Agricultural Engineering	en
dc.subject.classification	Biotechnology & Applied Microbiology	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	Agglomeration	en
dc.subject.other	Corrosion	en
dc.subject.other	Energy dispersive spectroscopy	en
dc.subject.other	Feedstocks	en
dc.subject.other	Fluidized bed process	en
dc.subject.other	Gasification	en
dc.subject.other	Leaching	en
dc.subject.other	Scanning electron microscopy	en
dc.subject.other	Sintering	en
dc.subject.other	Thermal effects	en
dc.subject.other	Fluidized bed gasification	en
dc.subject.other	Olive residues	en
dc.subject.other	Biomass	en
dc.subject.other	crop residue	en
dc.subject.other	leaching	en
dc.title	Effect of leaching on the ash behavior of olive residue during fluidized bed gasification	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0961-9534(01)00059-9	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0961-9534(01)00059-9	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	Fluidized bed gasification is considered to be the most advanced method for thermochemical conversion of various biomass fuels, e.g., wood, energy crops, agroresidues, etc., to energy offering economical and environmental benefits. Ash-related problems including sintering, agglomeration, deposition, erosion and corrosion resulting due, to the low melting point ash of agroresidues are the main obstacles for economical and viable application of this conversion method for energy exploitation of the specific residues. The effect of leaching (washing) the olive residue in order to improve its ash thermal behavior under the gasification conditions was studied. Gasification tests were performed in a tab scale fluidized bed gasifier with both leached and non-leached samples and the results concerning the ash thermal behavior of the used samples were associated with their ash elemental analysis, while the deposits produced during the gasification tests were analyzed using SEM-EDX analysis technique. The produced results clearly show that leaching could help significantly in avoiding to a great extent, the operational problems associated with the problematic ash thermal behavior in the case of olive residue. In particular, all gasification tests performed using the non-leached olive residue material as feedstock resulted in a rapid agglomeration of the reactor's bed material and consequently to the end of the gasification tests. On the contrary, gasification tests performed using the leached olive residue material ended without any agglomeration-deposition problems, while the: operation time was in all cases longer compared with the tests with the non-leached olive material. (C) 2002 Published by Elsevier Science Ltd.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Biomass and Bioenergy	en
dc.identifier.doi	10.1016/S0961-9534(01)00059-9	en
dc.identifier.isi	ISI:000173257600005	en
dc.identifier.volume	22	en
dc.identifier.issue	1	en
dc.identifier.spage	55	en
dc.identifier.epage	69	en