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Received March 5, 2001
Accepted May 10, 2001
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The Slug Flow Behavior of Polyethylene Particles Polymerized by Ziegler-Natta and Metallocene Catalysts
Department of Chemical Enginering, Sungkyunkwan University, Suwon 440-746, Korea 1Hanwha Petrochemical Co., Ltd., Daejeon 305-345, Korea
Korean Journal of Chemical Engineering, July 2001, 18(4), 561-566(6), 10.1007/BF02698306
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Abstract
We investigated the flow behavior of polyethylene particles polymerized by Ziegler-Natta catalyst and Metallocene catalyst. The employed polymer particles were linear low-density polyethylene (LLDPE), and average particle size was 600 μm. Different flow behavior of polymer particles in a fluidized bed was observed with different polymerization catalysts in the bubbling and slugging flow regimes. The flow behavior determined from the pressure drop fluctuation in the lower and upper section of the bed was analyzed with statistical methods.
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Dimattia DG, Amyotte PR, Hamdullahpur F, Can. J. Chem. Eng., 75(2), 452 (1997)
Fan LT, Ho TC, Hiraoka S, Walawender WP, AIChE J., 27(3), 388 (1981)
Jiang PJ, Bi HT, Liang SC, Fan LS, AIChE J., 40(2), 193 (1994)
McAuley KB, Talbot JP, Harris TJ, Chem. Eng. Sci., 49(13), 2035 (1994)
Satija S, Fan LS, AIChE J., 31(9), 1554 (1985)
Stappen ML, Schouten JC, van den Bleek CM, "Deterministic Chaos Analysis of the Dynamical Behavior of Slugging and Bubbling Fluidized Beds," Proc. 12(th) Int. Conf. on Fluidized Bed Combustion, Ed. Anthony, E.J., 1, 129 (1993)
Svoboda K, Cermak J, Hartman M, Drahos J, Selucky K, AIChE J., 30(3), 513 (1984)
