Process and device for fluidized bed torrefaction and grinding of a biomass feed for subsequent gasification or combustion

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United States of America Patent

PATENT NO 8900415
SERIAL NO

12745289

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Abstract

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A process and a unit for fluidized bed torrefaction and grinding of particles of a biomass with a largest dimension of 2 cm to 5 cm, and which unit contains an envelope having a general shape of a sector having a) two substantially vertical walls delimiting that sector; and b) at least one inclined wall defining three zones, from bottom to top: a lower zone provided with a fluidization means, and provided with a grinder placed at the bottom of that zone; an intermediate zone (2) provided with a fluidization means; and an upper zone (3) provided with a fluidization means; and a pipe (11) for introducing the particles reaching into the unit to the level of the intermediate zone.

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Patent Owner(s)

  • IFP ENERGIES NOUVELLES;INSTITUT FRANCAIS DU PETROLE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Louret, Sylvain Lyons, FR 19 124
Rolland, Matthieu Vernaison, FR 10 44

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