Liquefaction and partial oxidation of plastic materials

Details Liquefaction and partial oxidation of plastic materials Liquefaction and partial oxidation of plastic materials

C - Chemistry, Metallurgy

01

B

C01B 3/32 (2006.01) C08J 11/00 (2006.01) C10G 1/00 (2006.01) C10J 3/00 (2006.01) C10J 3/46 (2006.01)

Patent

CA 2173245

A process for upgrading plastic material containing inorganic filler or reinforcement material for use as feedstock in a partial oxidation gas generator for the production of raw synthesis gas, fuel gas, or reducing gas. The plastic material is granulated and partially liquefied by heating in a closed autoclave at a temperature in the range of about 400 °F to 495 °F and a pressure in the range of about 150 psig to 750 psig while the plastic material is in contact with a pumpable hydrocarbonaceous liquid solvent. A pumpable slurry is thereby produced comprising solubilized plastic, unsolubilized plastic, hydrocarbonaceous liquid solvent, separated inorganic material and unseparated inorganic material. After removing the separated inorganic material, the remainder of the slurry is then reacted by partial oxidation to produce said raw synthesis gas, fuel gas or reducing gas.

Procédé de valorisation de plastiques, comportant des charges non organiques ou des matériaux de renfort, qu'on utilise comme matière première alimentant un générateur de gaz à oxydation partielle en vue de la production de gaz brut de synthèse, de gaz combustible ou de gaz réducteur. Les plastiques sont broyés puis partiellement liquéfiés par chauffage en autoclave fermé à une température comprise entre 400 et 495 ~F et sous une pression comprise entre 150 et 750 psig tout en étant mis en contact avec un solvant liquide hydrocarboné pompable. Il en résulte une boue pompable comprenant du plastique solubilisé, du plastique non solubilisé, le solvant liquide hydrocarboné, et des matières organiques séparées ou non. Après extraction des matières organiques séparées, la boue subit une oxydation partielle qui donne les susdits gaz brut de synthèse, gaz combustible ou gaz réducteur.

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