Abrégé

Procedure, installation and batch reactor (1) for the extraction of oil (13) from spent earth (5) and the reactivation of said earth through the use of water in subcritical conditions, wherein said reactor (1), in operation, is fed with water (4) and spent earth (5) and comprises a tank (6) internally comprising an agitator (2) configured to bring into intimate contact, and mix the water (4) and the spent earth (5), and a coil (7) fed with a heat transfer fluid at a temperature between 300 and 350°C, being configured to operate at temperatures between 260° and 300°C and at a pressure between 50 and 80 bar, and with a ratio between water inflow (4) and spent earth (5) of substantially 1:3 (1 part of spent earth and three of water), with reactivated earth (14) and a flow of water with oil (15) being extracted.

Classes IPC  ?

• B01J 20/12 - Argiles d'origine naturelle ou terres décolorantes
• B01J 20/34 - Régénération ou réactivation
• C10G 25/12 - Récupération de l'adsorbant utilisé
• C11B 13/04 - Obtention de graisses, huiles ou acides gras à partir de résidus des produits adsorbants usés
• B01D 11/02 - Extraction par solvants de solides