Modified versions of sulfated zirconia as catalysts for the conversion of xylose to furfural

resumo

Conventional (per)sulfated bulk zirconia, mesoporous sulfated zirconia and (per)sulfated zirconia supported on an ordered mesoporous silica, with or without aluminium incorporation, were examined as acid catalysts for the dehydrocyclisation of xylose into furfural. Furfural yields of up to 50% could be achieved at > 90% conversion with the modified zirconia catalysts, which is better than that achievable with H2SO4 (using approximately the same equivalent amount of sulfur.)

palavras-chave

N-BUTANE ISOMERIZATION; SOLID ACID CATALYST; LIQUID-PHASE DEHYDRATION; SUPPORTED 12-TUNGSTOPHOSPHORIC ACID; PERSULFATE-MODIFIED AL2O3-ZRO2; MESOPOROUS SILICA; FRUCTOSE DEHYDRATION; SELECTIVE SYNTHESIS; ALUMINA; 5-HYDROXYMETHYL-2-FURALDEHYDE

categoria

Chemistry

autores

Dias, AS; Lima, S; Pillinger, M; Valente, AA

nossos autores

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