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Kinetic Study of Catalytic Steam Gasification of Biomass by Using Reactive Flash Volatilisation
Catalysis for Green Chemicals Group, Department of Chemical Engineering, Monash University.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.ORCID-id: 0000-0001-6081-5736
Catalysis for Green Chemicals Group, Department of Chemical Engineering, Monash University.
2015 (engelsk)Inngår i: ChemCatChem, ISSN 1867-3880, E-ISSN 1867-3899, Vol. 7, nr 8, s. 1329-1337Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Reactive flash volatilisation is an autothermal process to convert biomass into tar-free synthesis gas under steam-rich conditions. This article studies the kinetics of reactive flash volatilisation by using Ni, Pt[BOND]Ni, Ru[BOND]Ni, Re[BOND]Ni, and Rh[BOND]Ni catalysts supported on alumina. The rates of mass loss of cellulose, xylan, and lignin were measured and compared with those of the synthetic biomass mixture and pinewood sawdust. The kinetic parameters were calculated with and without catalysts by using a wire-mesh isothermal thermogravimetric analyser in an equimolar steam/N2 atmosphere and high heating rates of 8.6×102, 1.1×103, and 1.3×104 °C min−1 at 700, 750, and 800 °C, respectively. The results revealed three distinct regimes of the rate of mass loss: pyrolytic decomposition, reforming, and char gasification. The catalysts increased the rate of mass loss in the reforming regime. Rh[BOND]Ni and Ru[BOND]Ni supported catalysts showed higher reforming rates than other catalysts. This study provides direct evidence of the in situ catalytic removal of tar during gasification of biomass

sted, utgiver, år, opplag, sider
2015. Vol. 7, nr 8, s. 1329-1337
HSV kategori
Forskningsprogram
Energiteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-13345DOI: 10.1002/cctc.201500029ISI: 000353974000013Scopus ID: 2-s2.0-84927708815Lokal ID: c91245fa-f835-4ea6-b416-6c3f1d29981dOAI: oai:DiVA.org:ltu-13345DiVA, id: diva2:986298
Merknad
Validerad; 2015; Nivå 2; 20150323 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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