Method for processing biomass by co-grinding with a fossil-based 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
Life of this patent
Estimating the term…
Abstract
Process for the treatment of a feedstock containing biomass, the process including a) drying the feedstock at a temperature between 20 and 180° C. for a duration between 5 and 180 minutes, b) torrefaction of the feedstock originating from step a) in order to produce at least one torrefied biomass solid effluent, c) co-grinding the torrefied biomass solid effluent originating from step b), in the presence of at least one solid fossil feedstock in order to obtain a powder.
Claims15
Process for the treatment of a feedstock comprising biomass, said process comprising at least the following steps:
- a) A step of drying said feedstock at a temperature comprised between 20 and 180° C. for a duration comprised between 5 and 180 minutes,
- b) A step of torrefaction of the dried feedstock originating from step a) in order to produce at least one torrefied biomass solid effluent, and
- c) A step of co-grinding of the torrefied biomass solid effluent originating from step b), in the presence of at least one solid fossil feedstock in order to obtain a powder.
- in which
- the quantity of residual water at the end of drying step a) is comprised between 0.0% and 5.0% by weight with respect to the total weight of the feedstock,
- the dimensions of the solid fossil feedstock introduced in co-grinding step c) are comprised between 1 and 100 millimetres and preferentially between 2.0 and 80 millimetres,
- the solid fossil feedstock, input into co-grinding step c) has a moisture content comprised between 3.1 and 30.0% by weight, preferentially between 4.0 and 25.0% by weight.
Dependencies are inferred from the claim text.