The use of catalytic additives for hydrogenation of polyaromatic hydrocarbons

Abstract

The study results of the hydrogenation of anthracene and phenanthrene mixture in the presence of nanocatalyst (β-FeOOH), catalytic additives (microspheres obtained from coal ash of the Republic of Kazakhstan and applied nickel and cobalt additives on microspheres) are presented. The efficiency of using the “wet mixing” method for the preparation of nickel- and cobalt-oxide catalytic additives on microspheres in the process of hydrogenation of a mixture of anthracene and phenanthrene is shown. The process of hydrogenation of a mixture of polyaromatic hydrocarbons is represented by a combination of hydrogenation and destruction reactions. Note that NiO/microsphere and CoO/microsphere exhibited high activity as catalytic additives in the hydrogenation of a mixture of anthracene and phenanthrene. The concentration of unreacted products was several times lower than that obtained with the use of other catalysts and catalytic additives or in the hydrogenation carried out without a catalyst. Catalytic additives based on cobalt oxide were most selective in the hydrogenolysis reaction of a mixture of anthracene and phenanthrene.