Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia

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Appl. Sci.
2021
,
 11
, 2457. https://doi.org/10.3390/app11062457 
www.mdpi.com/journal/applsci 
Review 
Efficient Adsorbent-Desiccant Based on Aluminium Oxide 
Eugene P. Meshcheryakov 
1
, Sergey I. Reshetnikov 
2
, Mariya P. Sandu 
3
, Alexey S. Knyazev 
4
 and
Irina A. Kurzina 
1,
* 
1
Faculty of Chemistry, National Research Tomsk State University, 634050 Tomsk, Russia; [e-mail] 
2
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia; 
[e-mail] 
3
Department of Chemistry, Siberian State Medical University, 634050 Tomsk, Russia; [e-mail] 
4
LLC “Engineering Chemical Technological Center”, 634050 Tomsk, Russia; [e-mail] 
*
Correspondence: [e-mail]; Tel.: [phone] 
Abstract: 
The review describes the main methods of obtaining hydroxides and aluminium oxides 
(AO) of various structures from gibbsite. The promising techniques of obtaining AO adsorbents are 
discussed, namely the technique of thermal activation in the mode of pneumatic transport with 
gibbsite by heated air (TCA Gb) and the technique of thermal activation of gibbsite in centrifugal 
flash reactors (CTA Gb). The main methods of improving the adsorbent properties of AO, such as 
the optimisation of texture characteristics and phase composition, as well as the influence of the 
modification of aluminium oxide adsorbents, obtained using CTA and TCA technologies with 
cations of alkaline metals, are considered. It is shown that the modification allows a controlled 
variation of the characteristics of donor and acceptor active sites on the surface of adsorbents and, 
thus, a substantial increase in their adsorption activity, in particular, with respect to water vapour.