Silicon doping effect on the properties of the hydrotreating catalysts of FCC feedstock pretreatment

被引：20

作者：

Nadeina, K. A. ^{[1
]}

Danilevich, V. V. ^{[1
]}

Kazakov, M. O. ^{[1
]}

Romanova, T. S. ^{[1
]}

Gabrienko, A. A. ^{[1
,2
]}

Danilova, I. G. ^{[1
]}

Pakharukova, V. A. ^{[1
]}

Nikolaeva, O. A. ^{[1
]}

Gerasimov, E. Yu ^{[1
,2
]}

Prosvirin, I. P. ^{[1
]}

Kondrashev, D. O. ^{[3
]}

Kleimenov, A., V ^{[3
]}

Klimov, O., V ^{[1
]}

Noskov, A. S. ^{[1
]}

机构：

[1] Boreskov Inst Catalysis SB RAS, Pr Lavrentieva 5, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Fac Nat Sci, Dept Phys Chem, Novosibirsk, Russia

[3] PJSC Gazpromneft, St Petersburg, Russia

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2021年 / 280卷

关键词：

Hydrodesulfurization; hydrodenitrogenation; boehmite; silicon; vacuum gas oil; NITROGEN-COMPOUNDS; NIMO CATALYSTS; SPECTROSCOPIC CHARACTERIZATION; HDS CATALYSTS; ALUMINA; HYDRODESULFURIZATION; SURFACE; DIBENZOTHIOPHENE; PERFORMANCE; CRACKING;

D O I：

10.1016/j.apcatb.2020.119415

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Influence of Si addition at the stage of boehmite preparation on properties of NiMo/Al2O3 catalysts for FCC feedstock pretreatment have been studied. The series of boehmites doped by PDMS at the stage of hydrothermal treatment was prepared. Si/Al molar ratio was 0, 0.01, 0.015 and 0.02. Boehmites were used for supports and catalysts preparation. Boehmites, supports and catalysts have been characterized by XRD, TGA, nitrogen adsorption-desorption, IR spectroscopy, UV-Vis, Si-29 MAS NMR, HRTEM, EDX, XPS. Catalysts were tested in hydrotreating of FCC feedstock. It is shown that there are changes in morphology of boehmite particles and textural characteristics of aluminas. Introduction of Si to alumina induces formation of wider mesopores and blocks part of the Lewis acid sites of alumina. Testing of catalysts in hydrotreating of FCC feedstock shows that the catalyst with Si/Al ratio of 0.01 in boehmite has the best combination of hydrodesulfurization and hydrodenitrogenation activities.

引用

页数：15

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