Patent ID: 7060228

Claim:
A device for separating a mixture that comprises at least one gaseous phase and a liquid phase, whereby said mixture is obtained from a zone for bringing into contact a liquid feedstock, a gaseous feedstock and solid particles, said device being integrated in a chamber and comprising at least: at least one piece of recycling equipment ( 210 ) equipped with at least one passage for said mixture, at least one first separating element ( 280 ) or primary separator placed immediately after said passage or passages and that allows a separation of said mixture into a fraction A that contains a majority of liquid and a minority of gas and an essentially gaseous fraction B that contains a minority of liquid, at least one pipe ( 70 ) placed close to the upper portion of said chamber that allows the evacuation of essentially gaseous fraction B obtained from the primary separator, at least one evacuation pipe ( 30 ) that extends from recycling equipment ( 210 ) and via which fraction A, containing the majority of the liquid obtained from said primary separator, flows under the action of gravity and is evacuated, wherein said device further comprises means ( 130 ) for controlling the expansion level of said liquid phase in said chamber, wherein said means are configured so as to keep said level at a distance from the outlet orifice ( 70 ) of fraction B greater than or equal to 0.05 times the inside diameter of said chamber, and wherein evacuation pipe 30 comprises separate means for recycling ( 30 , 190 , 40 ) and for draw-off ( 31 , 50 , 100 ) of at least a portion of said fraction A, wherein said separate means comprises at least concentric pipes, at least one ensuring the recycling and at least one ensuring the draw-off.