DETERMINATION OF THE KINETIC CURVES OF DRYING OF BLOCKS OF ADSORBENTS-
DESSICANTS WITH DIFFERENT CROSS SECTIONS OF CHANNELS AND OF A GRANULATED
ADSORBENT ON A CHANGE IN THE FLOW VELOCITY

Yu. G. Korobeinikov, G. V. Trubacheev, and A. V. Fedorov

UDC 532.72;669.015.23

The kinetics of convective drying (regeneration) of different 
types of adsorbents-dessicants with different geometric parameters 
has been studied. It is shown that adsorbents of a "channel" (cellular) 
type have a long constant-rate stage of drying, whereas a granulated 
polydisperse adsorbent is mainly dried at a variable rate. Adsorbents 
having a maximum water yielding capacity have been revealed. It has 
been established that the velocity of a drying gas flow substantially 
influences the process of moisture extraction from all types of adsorbents. 
In order to describe the kinetic curves of the given phenomenon, a 
model of a relaxation kinetic equation that quite satisfactorily describes 
the kinetics of drying of the adsorbents studied was used.

Keywords: adsorbent-dessicant, convective drying, relaxation 
equation of drying.
 
Institute of Theoretical and Applied Mechanics, Siberian Branch 
of the Russian Academy of Sciences, 4/1 Institutskaya Str., Novosibirsk, 
630090, Russia; email: fedorov@itam.nsc.ru. Translated from Inzhenerno-
Fizicheskii Zhurnal, Vol. 82, No. 1, pp. 65-68, January-February, 2009. 
Original article submitted March 18, 2008.