Method for processing biomass by co-grinding with a second biomass feedstock
AssigneesIfp Energies Nouvelles, Axens, Commissariat A L'energie Atomique Et Aux Energies Alternatives, Total Raffinage Chimie, Thyssenkrupp Industrial Solutions AG, Avril, Bionext
InventorsThomas Plennevaux, Jeremy Gazarian, Laurent Bournay, Norbert Ullrich, Michael Hecquet
Life of this patent
Estimating the term…
Abstract
The present invention concerns a process for the treatment of a feed comprising biomass, said process comprising at least the following steps: a) a step for drying said feed at a temperature in the range 20° C. to 180° C. for a period in the range 5 to 180 minutes, b) a step for torrefaction of the dried feed obtained from step a) in order to produce at least one solid torrefied biomass effluent, and c) a step for co-grinding the solid torrefied biomass effluent obtained from step b) in the presence of a second biomass feed in order to obtain a powder.
Claims14
A process comprising treatment of a first solid biomass feed, by the following:
- a) drying said feed at a temperature in the range 20° C. to 180° C. for a period in the range 5 to 180 minutes,
- b) torrefaction of the dried feed obtained from a) in order to produce at least one solid torrefied biomass effluent, and
- c) co-grinding the solid torrefied solid biomass effluent obtained from b) in the presence of a second solid biomass feed in order to obtain a powder, and
- d) final drying of powder obtained from c), carried out simultaneously with the co-grinding in c, in which the second solid biomass feed entering the co-grinding c) has a moisture content in the range 4 to 25% by weight.
Dependencies are inferred from the claim text.