C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 2/34 (2006.01) C08F 2/00 (2006.01) C08F 10/00 (2006.01) C08F 210/06 (2006.01) C08F 210/16 (2006.01)
Patent
CA 2380845
A method is provided to monitor, detect and correct local defluidization and channeling in fluidized-bed reactors for polymerization of olefin and/or diolefin polymers. The detection is preferably conducted by (i) continuously and/or intermittently comparing a signal which is a function of the currently measured fluidization bulk density with a signal which is a function of the time-averaged baseline of fluidized bulk density.
L'invention concerne un procédé pour surveiller, détecter et corriger la défluidisation et la canalisation locales dans des réacteurs à lit fluidisé destinés à la polymérisation de polymères oléfiniques et/ou dioléfiniques. La détection se fait de préférence (i) par la comparaison en continu et/ou par intermittence d'un signal, qui est fonction d'une densité de fluidisation en vrac mesurée au moment présent, et d'un signal qui est fonction de la densité moyenne de fluidisation en vrac sur une période donnée.
Cai Ping
Hartley Ivan Jeremy
Jocobsen Lance Lyle
Lee Kiu Hee
Smart & Biggar
Union Carbide Chemicals & Plastics Technology Corporation
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