Journal
PETROLEUM CHEMISTRY
Volume 62, Issue 7, Pages 779-787Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0965544122050085
Keywords
hydrodesulfurization; hydrogenation; dibenzothiophene; heteropoly acids; molybdenum; vanadium
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In this study, mixed PMoV heteropoly acids with Keggin structures and modified sulfide catalysts were synthesized and their performance in hydrodesulfurization (HDS) of dibenzothiophene (DBT) and hydrogenation of naphthalene was evaluated. The results showed that modification of the Mo-containing catalysts with vanadium using a solution of mixed heteropoly acids enhanced their catalytic activity and increased the selectivity for the direct hydrodesulfurization route of the DBT HDS reaction.
Mixed PMoV heteropoly acids with Keggin structures H3+xPMo12-xV(x)O(40) (x = 1-6) and modified sulfide catalysts on their basis were synthesized, their physicochemical characteristics were determined, and their performance in the reactions of hydrodesulfurization (HDS) of dibenzothiophene (DBT) and hydrogenation of naphthalene was evaluated. Modification of the Mo-containing catalysts with vanadium by impregnation with a solution of mixed heteropoly acids was found to enhance their catalytic activity in the studied reactions, as well as to increase the selectivity for the direct hydrodesulfurization route of the DBT HDS reaction.
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