| 摘要 |
A heavy feed such as a gas oil, vacuum gas oil is added to riser reactor (6) via feed injection nozzles (2). The cracking reaction is almost completed in the riser reactor, which takes a 90 degree turn at the top of the reactor at elbow (10). Spent catalyst and cracked products discharged from the riser reactor pass through riser cyclone (12) which efficiently separates most of the spent catalyst from cracked product. Cracked product is discharged into disengager (14) and eventually is removed via upper cyclones (16) and conduit (18) to the fractionator. |
