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Co-gasification of rice production wastes

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dc.contributor.authorAndre, Rui N.
dc.contributor.authorPinto, Filomena
dc.contributor.authorMiranda, Miguel
dc.contributor.authorCarolino, Carlos
dc.contributor.authorCosta, Paula
dc.date.accessioned2015-03-23T12:11:05Z
dc.date.available2015-03-23T12:11:05Z
dc.date.issued2014
dc.description.abstractRice production is one of the major food sources in the world and unavoidably generates large amounts of wastes, mainly husk and straw that must be dealt in an environmentally sound and sustainable way. Traditional solutions, like burning in open fields or soil incorporation, may contribute for local pollution. Even the use of these wastes as animal food is not an appropriate solution. Plastics are also an additional waste arising from the life cycle of rice production, manufacturing and distribution. The co-gasification of these wastes was easily accomplished in a fluidized bed installation using steam mixed with air or oxygen as gasifying and fluidisation agents. By changing the gasifying agent composition it is possible to select the best conditions to co-gasify rice husks and PE wastes blends. For rice husks gasification, highest H2/hydrocarbons molar ratios were obtained using a mixture of air and steam and an equivalent ratio of 0.2. These conditions correspond to low tar emissions and very good gas yields and gas higher heating values (HHV). Co-gasification of rice husk mixed with PE enables to increase gas HHV, but also generates more tar. Nevertheless using up to 20 % of PE can be considered a promising solution to deal with this kind of wastes. Pollutants like H2S and NH3 were formed in the gasification process in acceptable amounts. Co-gasification with PE enables to decrease these pollutants. Depending on the gas end-use, the installation of a hot gas conditioning system could be needed to further decrease the contents of tar, H2S and NH3, while also promoting the conversion of hydrocarbons into H2 and CO.por
dc.identifier.citationAndré, R.N.; Pinto, F.; Miranda, M.; Carolino, C.; Costa, P. - Co-gasification of rice production wastes. In: Chemical Engineering Transactions, 2014, Vol. 39, p. 1633-1638por
dc.identifier.issn2283-9216
dc.identifier.urihttp://hdl.handle.net/10400.9/2657
dc.language.isoengpor
dc.publisherItalian Association of Chemical Engineering - AIDICpor
dc.relation.publisherversionhttp://dx.doi.org/10.3303/CET1439273por
dc.subjectCo-gasificationpor
dc.subjectWastepor
dc.subjectRice wastespor
dc.subjectRice Strawpor
dc.titleCo-gasification of rice production wastespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1638por
oaire.citation.startPage1633por
oaire.citation.titleChemical Engineering Transactionspor
oaire.citation.volume39por
person.familyNameAndre
person.familyNamePinto
person.familyNameMiranda
person.familyNameCosta
person.givenNameRui Neto
person.givenNameFilomena
person.givenNameMiguel
person.givenNamePaula
person.identifier2653052
person.identifier.ciencia-id4C1B-3AF1-8A48
person.identifier.ciencia-id2A1B-0AB6-B0FB
person.identifier.orcid0000-0002-5012-6467
person.identifier.orcid0000-0002-1014-568X
person.identifier.orcid0000-0001-9318-1506
person.identifier.orcid0000-0003-2024-4267
person.identifier.ridD-9167-2013
person.identifier.ridP-6395-2015
person.identifier.scopus-author-id7102736282
person.identifier.scopus-author-id7102740188
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication7204398e-48bf-4002-a952-7908014825be
relation.isAuthorOfPublication115c7b3c-916f-448e-b2d3-c2f3a186d1a2
relation.isAuthorOfPublication84d6b748-8faf-4cd7-bdde-e039d63c568f
relation.isAuthorOfPublication1c496336-8d21-4ed3-8d57-ade6c4a4ae1f
relation.isAuthorOfPublication.latestForDiscovery1c496336-8d21-4ed3-8d57-ade6c4a4ae1f

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