FIELD: physical processes.
SUBSTANCE: present invention relates to a method of physical separation of asphaltenes with a conversion rate greater than or equal to 90% and a solid phase such as coke and metals found in outgoing oil processing streams. An oil processing stream is a stream in form of slurry containing hydrocarbons with a boiling temperature greater than or equal to 140°C, wherein the streams are characterized by containing asphaltenes in an amount greater than or equal to 5% wt. and a solid phase in an amount greater than or equal to 5% wt. The method involves heating the outgoing oil processing stream to a temperature greater than or equal to 185°C and not exceeding 220°C. Then said heated outgoing oil processing stream is statically settled while the temperature is gradually controllably decreased to a minimum temperature of 100°C, without mixing the stream in order to obtain a light phase and a heavy phase induced by density.
EFFECT: efficient and simple separation into a clarified product and a cake containing metals and a solid phase, maximally efficient use of separated products: the clarified products are recycled to the input of the hydroconversion process and the cake is recycled as a solid fuel.
7 cl, 3 tbl, 2 dwg
