Patent ID: 7507330

Claim:
A method for high temperature short-time distillation of a residual oil originating from the processing of crude petroleum, natural bitumen or oil sand, wherein in a mixing apparatus ( 1 ) the residual oil is mixed with granular hot coke as heat transfer medium, converted into oil vapour, gas and coke, and wherein the gas and oil vapour are evacuated from the mixing apparatus ( 1 ) while being substantially separated from the granular coke, and wherein the gas and the vapour are cooled down to produce oil in form of condensate as well as gas, and wherein the coke, which has been evacuated from the mixing apparatus ( 1 ), is heated again and returned into the mixing apparatus ( 1 ) as heat transfer medium, characterized in that the oil vapour and the gas is partially condensed in a column ( 17 ) at temperatures beneath 450° C. while adding gas or water vapour to the column ( 17 ) for reducing partial pressure, and wherein a high-boiling fraction is extracted from the column ( 17 ) and non condensed gas and oil vapour are evacuated from the column ( 17 ).