Processing of tetradecane, pentadecane on a zeolite-containing catalyst modified with gallium
DOI:
https://doi.org/10.18321/cpc22(1)61-69Keywords:
alkanes, Ga/ Al2O3 ZSM catalyst, oil refining, conversion, selectivityAbstract
High-silica nanocatalysts with a three-dimensional microporous structure have found application in oil refining and petrochemistry. Their widespread use is due to many useful properties, such as flexibility of structure and composition, physical and hydrothermal stability, non-toxicity, large surface areas, and unique acid-base properties. The introduction of a modifying additive into the catalyst makes it possible to regulate the catalytic properties. In this paper, the effect of modification of the Al2O3+ZSM catalyst with Ga on the process of hydrogen-free transformations is studied. For comparison, n-decane was treated with an unmodified Al2O3+ZSM catalyst, and pentadecane and tetradecane were treated with a Gа/ Al2O3+ZSM catalyst. Various physico-chemical methods (ICS, electron microscopy, TPD) were used to describe the activity, structure and properties of the studied catalyst. . It has been found that Ga atoms in ZSM-5 zeolites can increase the selectivity of olefins and iso-alkanes, promote dehydrogenation, influence the acidic properties of the catalyst and provide a unique pore structure.
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