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Alkali catalyzed gasification of solid biomass: influence on fuel conversion and tar/soot reduction
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.ORCID-id: 0000-0002-8235-9839
Luleå tekniska universitet.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.ORCID-id: 0000-0002-3687-6173
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.ORCID-id: 0000-0003-1806-4187
Vise andre og tillknytning
2016 (engelsk)Inngår i: Proceedings of the 24th European Biomass Conference and Exhibition, Amsterdam: ETA Florence Renewable Energies , 2016, s. 533-536Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Based on char gasification experiments in an isothermal thermogravimetric analyzer, a suitable concentration of alkali salt (K2CO3) was chosen for impregnation due to almost five-fold increase in gasification reactivity and relatively low amount of carbon leaching during impregnation. Furthermore, an optimum method for wet alkali impregnation was proposed based on the several tests performed by varying temperature and time. To study the catalytic effect on tar and soot yield, untreated and impregnated woody biomass were gasified under entrained flow condition between 900 oC and 1200 oC. Impregnation leads to 70% lower tar yield from gasification around 1000 oC and 1100 oC. The lowest amount of soot was detected for the same temperature range whereas the soot yield was one order of magnitude higher for untreated biomass. For tar, this influence became insignificant at a higher temperature (1200 oC). This defines the suitable temperature range for alkali catalyzed gasification without the loss of catalytic activity.

sted, utgiver, år, opplag, sider
Amsterdam: ETA Florence Renewable Energies , 2016. s. 533-536
Serie
EUBCE Proceedings, ISSN 2282-5819
HSV kategori
Forskningsprogram
Energiteknik; Biokemisk processteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-29853Scopus ID: 2-s2.0-85019705426Lokal ID: 376c38d2-6cfb-4b5a-98cc-149509c1e39aOAI: oai:DiVA.org:ltu-29853DiVA, id: diva2:1003079
Konferanse
European Biomass Conference and Exhibition : 06/06/2016 - 09/06/2016
Merknad

Godkänd; 2016; 20160727 (kawkir)

Tilgjengelig fra: 2016-09-30 Laget: 2016-09-30 Sist oppdatert: 2023-09-05bibliografisk kontrollert

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Kirtania, KawnishMatsakas, LeonidasFurusjö, ErikUmeki, Kentaro

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