US 12,448,577 B2
Hydrothermal carbonisation method
Jean-Louis Bourdais, Chateaubriant (FR); and Marlène Choo-Kun, Marseilles (FR)
Assigned to SUEZ INTERNATIONAL, Paris (FR)
Appl. No. 18/033,507
Filed by SUEZ INTERNATIONAL, Paris (FR)
PCT Filed Nov. 3, 2021, PCT No. PCT/EP2021/080464
§ 371(c)(1), (2) Date Apr. 24, 2023,
PCT Pub. No. WO2022/096484, PCT Pub. Date May 12, 2022.
Claims priority of application No. 2011305 (FR), filed on Nov. 4, 2020.
Prior Publication US 2023/0323225 A1, Oct. 12, 2023
Int. Cl. C10J 1/26 (2006.01); C02F 11/10 (2006.01); C02F 11/122 (2019.01)
CPC C10J 1/26 (2013.01) [C02F 11/10 (2013.01); C02F 11/122 (2013.01); C02F 2209/02 (2013.01); C02F 2209/03 (2013.01); C02F 2209/44 (2013.01); C10J 2300/0923 (2013.01); C10J 2300/1612 (2013.01); C10J 2300/183 (2013.01); C10J 2300/1861 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for the hydrothermal carbonisation of a biomass containing organic matter, the method comprising:
injecting the biomass, a heat transfer fluid and a reagent into a reactor;
circulating in the reactor a mixture consisting of the biomass, the heat transfer fluid, and the reagent;
subjecting the mixture to specific pressure and temperature conditions in the reactor such that the organic matter in the biomass undergoes a hydrothermal carbonisation reaction in the reactor and the biomass is transformed into a carbonized biomass,
determining an emitted gas production rate Te in the reactor during the hydrothermal carbonisation reaction;
comparing the emitted gas production rate Te in the reactor to a predefined setpoint gas production rate Tc; and
adjusting at least one reaction drive parameter such that the emitted gas production rate Te in the reactor tends to be equal to or to approach the predefined setpoint gas production rate Tc, wherein the at least one reaction drive parameter is selected from the group consisting of a temperature in the reactor, an amount of the reagent injected into the reactor, and a residence time of the biomass in the reactor.