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    • 8. 发明授权
    • Heat balance in FCC process and apparatus with downflow reactor riser
    • FCC工艺中的热平衡和具有下流式反应器提升管的设备
    • US4411773A
    • 1983-10-25
    • US403685
    • 1982-07-30
    • Benjamin Gross
    • Benjamin Gross
    • B01J8/26C10G11/18F27B15/10F27B15/14F27B15/16
    • B01J8/26C10G11/18
    • In a fluid catalytic cracking (FCC) process and apparatus, the heat balance between the reactor and the regenerator of the FCC operation is partially uncoupled by transferring at least a portion of thermal energy from the reactor vessel downflow riser to the regenerator vessel. The transfer of thermal energy results in a higher regenerating temperature. The thermal energy is recirculated to the upstream section of the downflow reactor riser through a regenerated catalyst having higher temperature. Consequently, the outlet of the reactor vessel is maintained at a substantially constant temperature (e.g., 1000.degree. F.) and the rate of conversion of the oil feed and the octane number of gasoline produced in the process are increased.
    • 在流化催化裂化(FCC)方法和装置中,FCC操作的反应器和再生器之间的热平衡通过将至少一部分热能从反应器容器向下流入提升管转移到再生器容器而部分解耦。 热能转移导致更高的再生温度。 热能通过具有较高温度的再生催化剂再循环到下流式反应器提升管的上游段。 因此,反应容器的出口保持在基本上恒定的温度(例如1000°F),并且在该方法中产生的油进料的转化率和汽油的辛烷值增加。
    • 10. 发明授权
    • FCC Catalyst section control
    • FCC催化剂部分控制
    • US4211636A
    • 1980-07-08
    • US931573
    • 1978-08-07
    • Benjamin GrossWooyoung Lee
    • Benjamin GrossWooyoung Lee
    • B01J8/26C10G11/18
    • B01J8/26C10G11/187Y10S208/01
    • In the fluid catalytic cracking process, improved adaptive behavior of the catalyst section with the regenerator operating in the complete CO-burning mode is achieved by including, as elements of control, variable preheat of the oil feed and variable recycle of regenerated catalyst to spent catalyst. In response to excursions of the regenerated catalyst temperature, such as would be caused by change of feedstock, the oil preheat temperature and recycle ratio are altered in a direction to restore the regenerated catalyst temperature to a predetermined value. The improved control system extends the useful control range, and it also diminishes counterproductive changes in severity induced by disturbances such as change of feedstock quality.
    • 在流化催化裂化过程中,催化剂部分与再生器在完全CO燃烧模式下运行的改进的适应行为通过包括作为控制元素的油进料可变预热和再生催化剂可再循环到废催化剂 。 响应于再生催化剂温度的偏移,例如由原料变化引起的油的预热温度和再循环率在一个方向上改变,以将再生催化剂温度恢复到预定值。 改进的控制系统延伸了有用的控制范围,并且还减少了干扰引起的严重性的反作用变化,例如原料质量的变化。