Control of molecular weight distribution of polyethylene in gas-phase fluidized bed reactors
β Scribed by Mohammad Al-haj Ali; Emadadeen Ali AbdelHamid Ajbar; Khalid Alhumaizi
- Book ID
- 107514398
- Publisher
- Springer US
- Year
- 2010
- Tongue
- English
- Weight
- 458 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0256-1115
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## Abstract A comprehensive mathematical model is developed for the dynamic calculation of the molecular distributed properties (i.e. MWD and CCD) in a gasβphase, catalytic, ethyleneβ1βbutene copolymerization, FBR, taking into account the various kinetic, microβ and macroscopic phenomena in the rea
Transient gas mixing tests in a gas--solid fluidized bed are analyzed with a dispersive plug flow model from the bubbling to the turbulent regime, and with the two-phase model of van Deemter. It is shown that dispersion fluctuations can also be used besides pressure fluctuations or capacitance probe