| 摘要 |
<p>A temperature-sensitive hydrocarbonaceous waste stream (1) containing a non-distillable component is treated to produce a distillable hydrocarbonaceous product and a heavy product comprising the non-distillable component while minimizing thermal degradation of the hydrocarbonaceous stream by a process: (a) contacting the hydrocarbonaceous waste stream (1) with a hot first hydrogen-rich gaseous stream (7) having a temperature greater than the hydrocarbonaceous stream in a flash zone (2) at flash conditions, thereby increasing the temperature of the hydrocarbonaceous stream and vaporizing at least a portion thereof to provide a vapor stream (3) comprising hydrocarbons and hydrogen and a heavy product (6) comprising the non-distillable component; (b) condensing (4) at least a portion of the vapor stream (3) to provide a second hydrogen-rich gaseous stream (7) suitable for recycle and a liquid stream (9) comprising fuel gas and distillable hydrocarbonaceous compounds; (c) recovering a distillable hydrocarbonaceous product (12) from the liquid stream (9), and (d) heating (14) at least a portion of the second hydrogen-rich gaseous stream (7), and recycling it to form at least a portion of the first hydrogen-rich gaseous stream (7). l</p> |
