Characteristics of Smoldering on Moist Rice Husk for Silica Production

dc.contributor.authorYan, Shengtai
dc.contributor.authorYin, Dezheng
dc.contributor.authorHe, Fang
dc.contributor.authorCai, Junmeng
dc.contributor.authorSchliermann, Thomas
dc.contributor.authorBehrendt, Frank
dc.date.accessioned2022-01-06T12:30:23Z
dc.date.available2022-01-06T12:30:23Z
dc.date.issued2021-12-29
dc.date.updated2022-01-03T21:10:01Z
dc.description.abstractIn order to assess the possibility of silica production via smoldering of moist rice husk, experiments of washed (moist) rice husk (7 kg with moisture content of 51%) in a newly designed smoldering apparatus was performed. The temperature inside the fuel bed during smoldering was recorded, and characteristics of ash were analyzed. Results showed that the highest temperature in the middle of the naturally piled fuel bed was about 560.0 °C, lower than those in most of combustors. Some volatiles from the lower part of the fuel bed adhere to its upper ash during piled smoldering. Silica content and specific surface area of ash from smoldering of washed (moist) rice husk were 86.4% and 84.9 m2/g, respectively. Compared to our experiments, they are close to smoldering of unwashed rice husk (89.0%, 67.7 m2/g); different from muffle furnace burning (600 °C, 2 h) of washed (93.4%, 164.9 m2/g) and un-washed (90.2%, 45.7 m2/g) rice husk. The specific surface area is higher than those from most industrial methods (from 11.4 to 39.3 m2/g). After some improvements, the smoldering process has great potential in mass product of high quality silica directly from moist rice husk.en
dc.identifier.eissn2071-1050
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/16072
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-14846
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitende
dc.subject.othersmolderingen
dc.subject.otherrice husken
dc.subject.otherhigh moisture contenten
dc.subject.othersilicaen
dc.subject.otherspecific surface areaen
dc.titleCharacteristics of Smoldering on Moist Rice Husk for Silica Productionen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber317en
dcterms.bibliographicCitation.doi10.3390/su14010317en
dcterms.bibliographicCitation.issue1en
dcterms.bibliographicCitation.journaltitleSustainabilityen
dcterms.bibliographicCitation.originalpublishernameMDPIen
dcterms.bibliographicCitation.originalpublisherplaceBaselen
dcterms.bibliographicCitation.volume14en
tub.accessrights.dnbfreeen
tub.affiliationFak. 3 Prozesswissenschaften::Inst. Energietechnik::FG Energieverfahrenstechnik und Umwandlungstechniken regenerativer Energiende
tub.affiliation.facultyFak. 3 Prozesswissenschaftende
tub.affiliation.groupFG Energieverfahrenstechnik und Umwandlungstechniken regenerativer Energiende
tub.affiliation.instituteInst. Energietechnikde
tub.publisher.universityorinstitutionTechnische Universität Berlinen

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