TORREFACTION PROCESS

• Main Author: RAUTIALINEN, ERKKI
• Format: Patent
• Language: English; French
• Published: 16.10.2014
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; BLASTING; CHEMISTRY; DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS; DRYING; DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; LIGHTING; LIQUEFIED PETROLEUM GAS; LUBRICANTS; MECHANICAL ENGINEERING; METALLURGY; NATURAL GAS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

A process for producing compacted torrefied biomass from pre-processed biomass. The process includes drying the pre-processed biomass in a dryer with heater exhaust gas from a heater, yielding dried biomass; torrefying the dried biomass with heat generated by the heater; compacting and pre-cooling the torrefied biomass in a cooling compactor and further cooling the compacted torrefied biomass in a cooling tunnel, yielding the compacted torrefied biomass. Procédé de production d'une biomasse torréfiée compactée à partir d'une biomasse prétraitée. Le procédé comprend le séchage de la biomasse prétraitée dans un séchoir avec un effluent gazeux d'un réchauffeur, pour donner une biomasse séchée ; la torréfaction de la biomasse séchée avec la chaleur générée par le réchauffeur ; le compactage et le pré-refroidissement de la biomasse torréfiée dans un compacteur de refroidissement, et un refroidissement plus poussé de la biomasse torréfiée compactée dans un tunnel de refroidissement, pour donner la biomasse torréfiée compactée.