Process for discharging and transferring fluidized particles

Details Process for discharging and transferring fluidized particles Process for discharging and transferring fluidized particles

2008-05-06

2008-05-06

Nguyen, Tam M. (Department: 1764)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

C208S126000, C208S148000, C208S153000, C208S163000, C208S176000

Reexamination Certificate

active

10087238

ABSTRACT:
A process is disclosed for discharging and transferring upwardly fluidized particles from a dense fluidizing layer forming section to a high-velocity transferring section having a diameter which is smaller than that of the dense fluidizing fluidized layer forming section, wherein at least one intermediate cylindrical section is provided between the dense fluidizing fluidized layer forming section and the high-velocity transferring section. The process can decrease the degree of changes in the amount of particles to be discharged from the dense fluidizing layer forming section and transferred by the riser, thereby proving a stable and uniform transfer of the fluidized particles.

REFERENCES:
patent: 3409542 (1968-11-01), Molstedt
patent: 3735498 (1973-05-01), Suzukawa et al.
patent: 4693808 (1987-09-01), Dewitz
patent: 01-198688 (1989-08-01), None

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