Method for purifying natural oil

C - Chemistry – Metallurgy – 11 – B

Patent

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C11B 3/02 (2006.01)

Patent

CA 2729939

Provided is a method for purifying natural oil comprising: supplying a to-be-treated raw natural oil into a reaction tank which is provided with a layer of a particulate photocatalyst, and which is configured to allow the to-be-treated raw natural oil and oxygen and/or hydrogen to pass through the particulate photocatalyst in the layer; and then, while introducing oxygen and/or hydrogen to the inside of the layer of the particulate photocatalyst, causing the raw natural oil to circulate and to come into contact with the particulate photocatalyst, with a temperature inside the reaction tank kept at 40 to 110°C, to thereby purifying the raw natural oil.

Cette invention concerne un procédé de raffinage du pétrole naturel, caractérisé en ce quune huile brute à traiter est introduite dans une cuve réactionnelle pourvue dune couche de photocatalyseur à particules et construite de telle sorte que lhuile brute à traiter et loxygène et/ou lhydrogène puissent passer à travers les particules du photocatalyseur dans la couche ; lhuile brute est ensuite mise en circulation, tandis que loxygène et/ou lhydrogène sont introduits dans la couche du photocatalyseur à particules : lhuile brute se trouve ainsi en contact avec les particules du photocatalyseur ; lhuile brute est raffinée dans la cuve réactionnelle à une température maintenue entre 40 et 110 °C.

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