Influence of lanthanum promoter on vanadium catalyst for sulfur dioxide oxidation

被引：11

作者：

Wang, Xin ^{[1
]}

Kang, Yong ^{[1
]}

Cui, Dayun ^{[1
]}

Li, Jie ^{[1
]}

Li, Dan ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300350, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2019年 / 118卷

关键词：

Lanthanum; Doping; Vanadium catalyst; Sulfur dioxide oxidation; Catalytic performance; MOLECULAR-STRUCTURE; SO2; TEMPERATURE; DEACTIVATION; EXTRACTION;

D O I：

10.1016/j.catcom.2018.09.013

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：

In this study, the catalytic properties of lanthanum modified V2O5 catalyst for SO2 oxidation have been studied. Effects of La2O3 content and reaction temperature were investigated to optimize La2O3 loading on V2O5 catalyst. The samples were characterized by BET, FT-IR, Raman, XRD, SEM and TG/DSC. The results showed that the catalyst with 4 wt% La2O3 (VLa4) possessed the highest catalytic performance, improving the mean SO2 conversion at least 53% compared with the catalyst without La2O3 (VLaO). Due to its excellent low-temperature and high-temperature activities, VLa4 catalyst appears to be more efficient for the conversion of highly concentrated SO2 gases.

引用

页码：39 / 45

页数：7

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