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US 12,515,975 B2Granted
Process for anaerobic digestion of carbonaceous material
AssigneeSuez International
InventorsMathieu Haddad, Pierre-Emmanuel Pardo
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Abstract
A process of treatment of carbonaceous material, such as wastewater sludge or organic waste, includes performing a thermal treatment of the carbonaceous material, thereby providing thermally treated carbonaceous material, cooling the thermally treated carbonaceous material, thereby providing cooled carbonaceous material, the cooling being performed using a vacuum cooling procedure, and performing a post-treatment of the cooled carbonaceous material, and at least one carbonaceous material degassing.
Claims28
A process of treatment of carbonaceous material, comprising:
- performing a thermal treatment of said carbonaceous material, thereby providing thermally treated carbonaceous material,
- cooling said thermally treated carbonaceous material, thereby providing cooled carbonaceous material, the cooling being performed using a vacuum cooling step, and
- performing a post-treatment of said cooled carbonaceous material, and
- at least one step of carbonaceous material degassing;
- wherein the carbonaceous material degassing operates at a vacuum pressure level above a pressure at which steam is produced from the hot and fresh carbonaceous material.
2 more elements
Dependencies are inferred from the claim text.