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    • 6. 发明授权
    • FCC unit catalyst stripper
    • FCC单元催化剂汽提器
    • US06248298B1
    • 2001-06-19
    • US08771869
    • 1996-12-23
    • Richard C. SeniorChristopher G. SmalleyTimothy P. Holtan
    • Richard C. SeniorChristopher G. SmalleyTimothy P. Holtan
    • F27B1508
    • C10G11/18B01J8/0055B01J8/34
    • An improved stripper section design is provided for use in fluid catalytic cracking (FCC) units. The stripper section contains means for imparting rotational movement to the FCC cracking catalyst as it traverses the stripping section. In one embodiment the stripper section contains at least one rotation vane that is preferably disposed on the surface of a stripper section tray. The rotation vane provides angular, rotational movement to the cracking catalyst as it traverses the stripper section. Vertical movement is imparted to the cracking catalyst due to gravity and radial movement is imparted to the catalyst due to the slanted nature of the tray. Through the use of the rotation vanes the contact between the catalyst particles and the stripping steam is increased, thereby improving the overall efficiency of the FCC operation.
    • 提供了一种用于流化催化裂化(FCC)装置的改进的汽提部分设计。 汽提器部分包含用于当FCC裂化催化剂穿过汽提部分时向FCC裂化催化剂施加旋转运动的装置。 在一个实施例中,汽提器部分包含至少一个旋转叶片,其优选地设置在汽提器部分托盘的表面上。 旋转叶片在穿过剥离器部分时向裂化催化剂提供角度旋转运动。 由于重力而使裂纹催化剂产生垂直运动,并且由于托盘的倾斜性质,向催化剂施加径向移动。 通过使用旋转叶片,催化剂颗粒和汽提蒸汽之间的接触增加,从而提高了FCC操作的总体效率。