Investigation of Low-Temperature Selective Catalytic Reduction of NOx with Ammonia over Mn-Modified Fe2O3/AC Catalysts

被引：52

作者：

Chen, Jiuyu ^{[1
]}

Zhu, Baozhong ^{[1
]}

Sun, Yunlan ^{[1
,2
]}

Yin, Shoulai ^{[1
]}

Zhu, Zicheng ^{[1
]}

Li, Jiaxin ^{[1
]}

机构：

[1] Anhui Univ Technol, Minist Educ, Sch Energy & Environm, Maanshan 243002, Anhui, Peoples R China

[2] Anhui Univ Technol, Minist Educ, Key Lab Met Emiss Reduct & Resources Recycling, Maanshan 243002, Anhui, Peoples R China

来源：

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY | 2018年 / 29卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Fe2O3/AC; manganese oxide; NH3-SCR; NO conversion; MODIFIED ACTIVATED CARBON; MANGANESE OXIDES; NITRIC-OXIDE; DOPED MN/TIO2; NH3-SCR; PROMOTION; IRON; NH3; SCR; REMOVAL;

D O I：

10.21577/0103-5053.20170116

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of iron-based catalysts supported on activated carbon (AC) and manganese-modified Fe2O3/AC catalysts with various Fe: Mn ratios were prepared for selective catalytic reduction (SCR) of NO by ammonia at low temperature. It was found that the addition of a small amount of MnOx into the Fe2O3/AC catalyst contributed to an improvement of the NO conversion. NO conversions of approximately 100% were obtained for the 10FexMn/AC (x = 1, 3, 5) catalysts at 180-240 degrees C. The characterization results indicate that the addition of a certain amount of MnOx into the 10Fe/AC catalyst increased the dispersion of the amorphous state, increased the ratios of Fe3+/(Fe3+ + Fe2+) and Mn4+/Mn3+, and improved the surface area and pore volume.

引用

页码：79 / 87

页数：9

共 41 条

[1] Investigating the promotional effect of methanol on the low temperature SCR reaction on Ag/Al2O3 [J].

Chansaia, Sarayute ;

Burch, Robbie ;

Hardacre, Christopher ;

Norton, Daniel ;

Bao, Xiaoying ;

Lewis, Larry .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2014, 160 :356-364

[2] Cr-MnOx mixed-oxide catalysts for selective catalytic reduction of NOx with NH3 at low temperature [J].

Chen, Zhihang ;

Yang, Qing ;

Li, Hua ;

Li, Xuehui ;

Wang, Lefu ;

Tsang, Shik Chi .

JOURNAL OF CATALYSIS, 2010, 276 (01) :56-65

[3] Selective catalytic reduction of nitric oxide with ammonia on Fe-ZSM-5 catalysts prepared by different methods [J].

Delahay, G ;

Valade, D ;

Guzmán-Vargas, A ;

Coq, B .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 55 (02) :149-155

[4] Characterization and catalytic investigation of Fe-ZSM5 for urea-SCR [J].

Devadas, Mukundan ;

Kroecher, Oliver ;

Elsener, Martin ;

Wokaun, Alexander ;

Mitrikas, George ;

Soeger, Nicola ;

Pfeifer, Marcus ;

Demel, Yvonne ;

Mussmann, Lothar .

CATALYSIS TODAY, 2007, 119 (1-4) :137-144

[5] Physicochemical properties of metal-doped activated carbons and relationship with their performance in the removal of SO2 and NO [J].

Gao, Xiang ;

Liu, Shaojun ;

Zhang, Yang ;

Luo, Zhongyang ;

Cen, Kefa .

JOURNAL OF HAZARDOUS MATERIALS, 2011, 188 (1-3) :58-66

[6] Nitrogen-promoted active carbons as catalytic supports - 2. The influence of Mn promotion on the structure and catalytic properties in SCR [J].

Grzybek, T. ;

Klinik, J. ;

Motak, M. ;

Papp, H. .

CATALYSIS TODAY, 2008, 137 (2-4) :235-241

[7] Evaluation of Fe(II)EDTA-NO reduction by zinc powder in wet flue gas denitrification technology with Fe(II)EDTA [J].

He, Feiqiang ;

Deng, Xianhe ;

Chen, Min .

FUEL, 2017, 199 :523-531

[8] Nitric oxide removal by combined urea and FeHEDTA reaction systems [J].

He, Feiqiang ;

Deng, Xianhe ;

Chen, Min .

CHEMOSPHERE, 2017, 168 :623-629

[9] Selective catalytic reduction of NO with NH3 at low temperatures over iron and manganese oxides supported on mesoporous silica [J].

Huang, Jihui ;

Tong, Zhiquan ;

Huang, Yan ;

Zhang, Junfeng .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2008, 78 (3-4) :309-314

[10]

Hung CM, 2008, AEROSOL AIR QUAL RES, V8, P447

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