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1 Bulletin of the Polish Academy of Sciences. Technical Sciences

1 2000

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Experimental Analysis of the Kinetics of Spray Drying Process

Zbiciński I., Strumiłło Cz., Kasznia J., Adamiec J., Deląg A.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2000

Vol. 48, nr 3

475-491

The extensive experimental trials on the spray drying kinetics involving "in situ" analysis of the properties of continuous and dispersed phases from atomization to collection of dry product were performed. To accomplish this task a six meter long concurrent spray drying tower was designed, built and tested. Sophisticated experimental techniques (including laser techniques) to determine operational parameters of the process (temperature, humidity, moisture content) and current structure of spray (particle size distribution, particle velocities, etc.) were employed. The tower capacity enables to identify the effect of various drying process parameters like effect of feed properties, feed rate and feed temperature, drying agent temperature, air flow rate on drying kinetics. The results coming out from the experiments give a profound description of spray drying process and the mechanisms involved in transforming a droplet to the final product.