Abstract
<p>Mixed catalysts were prepared on the basis of a synthesized high-silica ZSM-5 zeolite and an electroexplosion nanosized zinc powder. The influence of Zn concentration in a zeolite on its acidic and catalytic properties in the reaction of C<sub>2</sub>-C<sub>4</sub> low alkanes aromatization as well as the catalyst deactivation resulting from carbonization were studied.</p>
Highlights
Catalysis of chemical reactions is an important and wide field of application of metal nanosized particles [1,2,3]
A high catalytic activity of these particles is explained by electron and geometric effects resulting from a small particle size [4,5,6]
The catalytic activity and stability of zinccontaining zeolites were studied in the process of the conversion of C2-C4 alkanes mixture into aromatic hydrocarbons
Summary
Catalysis of chemical reactions is an important and wide field of application of metal nanosized particles [1,2,3]. Metastable particles formed are characterized by structure deficiency, a developed inner surface and a high energy saturation This complex of the properties of nanosized powders (NSP) produced by electroexplosion determines their high catalytic activity in chemical processes. In this connection the study of physicochemical properties of nanosized metal powders and establishment of the catalysis fields where they would find a practical application is a very important and urgent task. To carry out comparative studies we prepared zeolite catalysts where the commercial zinc was introduced by ion exchange or mechanical mixing. A fraction of 0.25-0.50 mm was taken for tests using special sieves
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