Research of the influence of ZSM-5 zeolite modification with zinc on the direction of transformations of oil raw materials

Zinc (0.51 and 1.15 wt. %) was deposited by impregnation of HZSM-5 zeolite with an aqueous solution of Zn(NO3)2. Zinc modification of the HZSM-5 type (SiO2/Al2O3 = 30) affects the catalytic activity of cracking catalysts based on it in the aromatization reaction. The introduction of zinc leads to an...

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Bibliographic Details
Main Authors: Plekhova, K. S., Sidorchik, I. A., Sorokina, T. P., Potapenko, O. V., Doronin, V. P.
Format: Conference Proceeding
Language:English
Subjects:
Alkenes
Aluminum oxide
Aqueous solutions
Aromatic compounds
Catalytic activity
Catalytic cracking
Gas oil
Gasoline
Raw materials
Silicon dioxide
Sulfur compounds
Zeolites
Zinc
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Summary:Zinc (0.51 and 1.15 wt. %) was deposited by impregnation of HZSM-5 zeolite with an aqueous solution of Zn(NO3)2. Zinc modification of the HZSM-5 type (SiO2/Al2O3 = 30) affects the catalytic activity of cracking catalysts based on it in the aromatization reaction. The introduction of zinc leads to an increase in the yield of aromatic compounds compared with unmodified zeolite HZSM-5 from 44.5 to 47.4 wt. % (1.0-Zn-ZSM-5) during catalytic cracking of hydrotreated vacuum gas oil and from 41.8 to 45.8 wt. % for non-purified vacuum gas oil. Modification of zeolite HZSM- 5 with zinc does not significantly affect the yield of C2−C4−olefins. An increase in the rate of hydrogen transfer reaction is observed with an increase in the zinc content in zeolite HZSM-5, which leads to a decrease in the content of sulfur compounds in cracking gasoline.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0032911