Reactivation of CoMo/Al2O3 Hydrotreating Catalysts by Citric Acid

被引：20

作者：

Budukva, Sergey V. ^{[1
]}

Klimov, Oleg V. ^{[1
]}

Chesalov, Yuriy A. ^{[1
]}

Prosvirin, Igor P. ^{[1
]}

Larina, Tatyana V. ^{[1
]}

Noskov, Alexander S. ^{[1
]}

机构：

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

来源：

CATALYSIS LETTERS | 2018年 / 148卷 / 05期

关键词：

Hydrotreating; Processes and reactions; Reactivation; Citric acid; Complex agents; Diesel fuel; HYDRODESULFURIZATION CATALYSTS; MICRO SPECTROSCOPY; ADDITION STAGE; DIESEL FUEL; MO; CO; REGENERATION; PROMOTER; RAMAN; HDS;

D O I：

10.1007/s10562-018-2365-9

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：

Commercial liquid-phase-sulfided type II CoMo/Al2O3 catalyst was reactivated after commercial operation and oxidative regeneration. For this purpose, the use of citric acid (CA) that reactivates a regenerated CoMo/Al2O3 catalyst was studied. The study of the reactivated catalyst was carried out by means of UV-DRS, FTIR, Raman spectroscopy, XRD, XPS, and HTREM. The catalytic activity was estimated in the HDS of straight-run gasoil (SRGO). It was shown that the treatment of the catalyst with CA leads to the formation of a Co-Mo complex compound and significantly reduces the proportion of beta-CoMoO4 and MoO3 in the catalyst. Eventually, this leads to the formation of CoMoS phase type II in a higher proportion enhancing the HDS catalytic properties. [GRAPHICS] .

引用

页码：1525 / 1534

页数：10

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