Kinetics of Polymer Dispersion Drying dy the ConductionMethod

Vitaliy Yakubik1 vitalik_yakubik [at] mail.ua
Serhiy Zayats1 serhiyzayats123 [at] gmail.com
Roman Havryliv1 havrilivroman [at] gmail.com
  1. Department of chemical engineering, Lviv Polytechnic National University, UKRAINE, Lviv, St. Yura square, 9
Abstract 

The effects of conduction heating at the drying surface temperatures ranging from 50° to 90°C for thin layer conduction drying of polymer dispersion were studied. Results show that polymer dispersion at 52 percent initial moisture contants dried initially under constant rate period for a very short time and then dried under falling rate period. The empirical drying equations, developed before for the above drying conditions can be used to predict the drying time with fairly good accuracy.

References 

[1] Crank J,“Infinite and semi-infiite media”, The mathematical of diffusion, Oxford, Great Britain: Oxford University Press, pp.28-43, 1975.

[2] W.J. Coumans “Models for drying kinetics based on drying curves of slabs”, Chem Eng P, vol.39(1), pp.53–68, May 2000.