Undesired components in the transformation of biomass pyrolysis oil into hydrocarbons on an HZSM‐5 zeolite catalyst

Journal of Chemical Technology and Biotechnology - Tập 80 Số 11 - Trang 1244-1251 - 2005
Ana G. Gayubo1, Andrés T. Aguayo1, Alaitz Atutxa1, Beatríz Valle1, Javier Bilbao1
1Departamento de Ingeniería Química, Universidad del País Vasco, Apartado 644, E-48080 Bilbao, Spain

Tóm tắt

AbstractThe results of the catalytic transformation on HZSM‐5 zeolite of mixtures of components of biomass pyrolysis oil in the 673–723 K temperature range are evidence of the need for previously separating certain components (aldehydes, oxyphenols and furfural) that undergo severe thermal degradation by forming carbonaceous deposits at the reactor inlet ducts and on the catalyst itself. The deactivation of the catalyst is a consequence of the deposition of two different types of coke: one of catalytic origin (similar to that generated in the transformation of methanol and bioethanol) and the other of thermal origin, which is produced by the aforementioned degradation. The remaining oxygenate components react to each other with synergistic effect, which means that their reactivity is higher than that of the pure components. The results show that the aqueous fraction of biomass pyrolysis oil may be transformed into hydrocarbons on acid catalysts similarly to the more familiar transformation of methanol and bioethanol. Copyright © 2005 Society of Chemical Industry

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Journal of Chemical Technology and Biotechnology

Tập 80 Số 11

1244-1251

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