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Effect of Various Catalyst Precursors on Hydroconversion of Heavy Cracked Cycle Oil
Vacuum residue-stabilized concentrated suspensions of nanosized metal sulfide particles are synthesized from inverted emulsions of aqueous solutions of Мо, Ni, Fe, and W salts by heat treatment in the presence of a sulfiding agent and hydrogen. The synthesized catalysts are tested in the hydroconversion of heavy cracked cycle oil with a high content of aromatic hydrocarbons. Hydroconversion is carried out in an autoclave at 425°С at a hydrogen pressure of 7 MPa and a catalyst content in the reaction zone of 0.1% per metal. Our studies suggest that Мо- and Ni-containing catalysts show a higher activity in hydrogenation and hydrodesulfurization reactions. Catalytic activity, which is assessed from an increase in the ratio of paraffin-naphthene to aromatic hydrocarbons and the H/C ratio in hydrogenation product fractions, decreases in the sequence МоS2, (МоS2 + Ni7S6), Ni7S6, Fe1 –xS, and (NH4)0.25WO3.
Effect of Various Catalyst Precursors on Hydroconversion of Heavy Cracked Cycle Oil
Vacuum residue-stabilized concentrated suspensions of nanosized metal sulfide particles are synthesized from inverted emulsions of aqueous solutions of Мо, Ni, Fe, and W salts by heat treatment in the presence of a sulfiding agent and hydrogen. The synthesized catalysts are tested in the hydroconversion of heavy cracked cycle oil with a high content of aromatic hydrocarbons. Hydroconversion is carried out in an autoclave at 425°С at a hydrogen pressure of 7 MPa and a catalyst content in the reaction zone of 0.1% per metal. Our studies suggest that Мо- and Ni-containing catalysts show a higher activity in hydrogenation and hydrodesulfurization reactions. Catalytic activity, which is assessed from an increase in the ratio of paraffin-naphthene to aromatic hydrocarbons and the H/C ratio in hydrogenation product fractions, decreases in the sequence МоS2, (МоS2 + Ni7S6), Ni7S6, Fe1 –xS, and (NH4)0.25WO3.
Effect of Various Catalyst Precursors on Hydroconversion of Heavy Cracked Cycle Oil
Pet. Chem.
Kadieva, M. Kh. (author) / Zekel’, L. A. (author) / Batov, A. E. (author) / Dandaev, A. U. (author) / Visaliev, M. Ya. (author) / Kadiev, Kh. M. (author)
Petroleum Chemistry ; 59 ; 1278-1284
2019-12-01
7 pages
Article (Journal)
Electronic Resource
English
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