Browse > Article
http://dx.doi.org/10.7464/ksct.2011.17.3.209

Drying Characteristics of Fine Polymers in an Inert Medium Fluidized Bed  

Kim, Og-Sin (Department of Chemical Engineering, Sungkyunkwan University)
Lee, Dong-Hyun (Department of Chemical Engineering, Sungkyunkwan University)
Publication Information
Clean Technology / v.17, no.3, 2011 , pp. 209-214 More about this Journal
Abstract
The effects of inlet gas velocity (0.26-0.31 m/s), inlet gas temperature (315-353 K) and the mass ratio (0.1-0.4) of fine polymer (crosslinked poly methyl methacrylate beads) to inert medium particles on the drying rate of fine polymer in a 0.15 m-ID ${\times}$ 1.0 m-high inert medium fluidized bed dryer have been investigated. Crosslinked PMMA beads of 20 ${\mu}m$ (group C) were used as fine polymer, and glass beads of 590 ${\mu}m$ (group B) were used as the inert medium. The drying rate increases with increasing inlet gas temperature and velocity. However, the drying rate decreases slightly as the mass ratio of fine polymer to inert medium particles increases. The particle size distribution of dried fine polymers was mono distribution.
Keywords
Inert medium fluidized bed; Fine polymer; Drying rate; Gas velocity; Inlet gas temperature;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Nakagawa, N., Ohsawa, K., Takarada, T., and Kato, K., "Continuous Drying of a Fine Particle-water Slurry in a Powderparticle Fluidized Bed," J. of Chem. Eng. Japan, 25, 495-501 (1992).   DOI   ScienceOn
2 Palancz, B., "A Mathematical Model for Continuous Fluidized Bed Drying," Chem. Eng Sci., 38(7), 1045-1059 (1983).   DOI   ScienceOn
3 Geldart, D., "The Effect of Particle Size and Size Distribution on the Behavior of Gas-fluidized Beds," Powder Technol., 6(4), 201-215 (1972).   DOI   ScienceOn
4 Geldart, D., "Challenges in Fluidized Bed Technology," AIChE Symp. Ser., 85(270), 111-121 (1989).
5 Land, C. M. van't, "Selection of Industrial Dryers," Chem. Eng., March, 53-61 (1984).
6 Jun, K.-S., Hwang, E.-J., and Kim, H.-J., "A Study on Drying and Carbonization of Organic Sludge from Sewage Plant and Petrochemical Industries for Energy and Resources Recovery," Clean Technology, 15(3), 154-164 (2009).
7 Jariwara, S. L., and Hoelscher, H. E., "Model for Oxidative Thermal Decomposition of Starch in Fluidized Reactor," Ind. Eng. Chem., 9, 278 (1970)   DOI
8 Lee, D. H., and Kim, S. D., "Drying Characteristics of Starch in an Inert Medium Fluidized Bed," Chem. Eng. Technol., 16, 263-269 (1993).   DOI   ScienceOn
9 Lee, D. H., and Kim, S. D., "Drying Characteristics of PVC Resin in an Inert Medium Fluidized Bed," HWAHAK KONGHAK, 32(3), 463-468 (1994).
10 Lee, D. H., and Kim, S. D., "A Mathematical Model for Batch Drying in An Inert Medium Fluidized Bed," Chem. Enging. Technl., 22, 443-450 (1999).   DOI   ScienceOn
11 Schlunder, E.-U., "Drying '85 (Toei, R., Mujumdar, A.S., EDS), 75-83 (1985).
12 Chandran, A. N., Rao, S. S., and Varma, Y. B. G., "Fluidized Bed Drying of Solids," AIChE J., 36(1), 29-38 (1990).   DOI