The Hydrothermal Decomposition Of
Biomass And Waste To Produce Bio-oil
Author(s)
P. De Filippis, B. de Caprariis, M. Scarsella & N. Verdone
Abstract
The hydrothermal decomposition of biomass is an alternative to the traditional
pyrolysis processes to obtain liquid fuels with an increased energy density.
Hydrothermal liquefaction is claimed to produce bio-oils with improved
characteristics such as a reduced content of oxygen, avoiding at the same time
the energy consuming biomass drying step necessary in the traditional
thermochemical processes. However, at present the use of this technology is
limited by the severe conditions needed and by the difficulties connected with
the realization of a continuous process. In this work an innovative process,
operating at atmospheric pressure and at moderate temperatures, is proposed,
where water subcritical conditions are achieved locally by means of the energy
released during cavitation. The process was tested on lab-scale on two biomass
feeds obtaining a crude bio-oil with a composition very similar to that of fossil
oil and greatly improved respect to those obtained in traditional pyrolysis
processes.
Keywords: hydrothermal pyrolysis, biomass, biofuels.
Keywords
hydrothermal pyrolysis, biomass, biofuels.
Related Book
Other papers in this volume
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