| 摘要 |
Apparatuses and methods are provided for fluid catalytic cracking. A fluid catalytic cracking apparatus includes a riser with a first inlet. A first distributor pipe is coupled to the riser at the riser inlet. A heat transfer device is coupled to the first distributor pipe, where the heat transfer device includes a coolant outlet exterior to the riser, and wherein the heat transfer device is a counter current heat transfer device. |
