Influence of the composition of the adsorbent "hygroscopic salt/aluminum oxide" on its physicochemical properties

16th International Conference of Students and Young Scientists "Prospects of Fundamental Sciences Development"

自然科学（总论）

Budaev, Zh.B.^1 ; Livanova, A.V.^1 ; Meshcheryakov, E.P.^1 ; Isupova, L.A.^2 ; Magaev, O.V.^1

Tomsk State University, Lenin ave., 36, Tomsk

634050, Russia^1

Boreskov Institute of Catalysis, SB RAS, 5 Lavrentieva ave., Novosibirsk

630090, Russia^2

关键词: Adsorption capacities;    Adsorption kinetics;    Centrifugal thermal activations;    Composite adsorbents;    Hygroscopic salts;    Physicochemical characteristics;    Research results;    Static capacitance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/597/1/012025/pdf
DOI  :  10.1088/1757-899X/597/1/012025

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

The paper presents the research results of physicochemical characteristics, adsorption kinetics and value of adsorption capacity with respect to water vapors of the composite adsorbent "CaCl2 - aluminum oxide". Sorbent synthesized by centrifugal thermal activation of hydrargillite and its subsequent hydration in mild conditions was used as a carrier. It was shown that, in the studied range of change in the CaCl2 content of the adsorbent (8.6-15.5% mass.), a sample containing 13.8% mass. of CaCl2 was the most promising when used as a desiccant. This sample was characterized by static capacitance that was higher than 20 g/100 g, by quite high dynamic capacitance of 5.8 g/100 cm3 and good mechanical strength of 4.9 MPa.