Effect of Zr Addition on the Low-Temperature SCR Activity and SO2 Tolerance of Fe-Mn/Ti Catalysts

被引：128

作者：

Jiang, Boqiong ^{[1
,3
]}

Deng, Boyang ^{[1
]}

Zhang, Zhanquan ^{[2
,3
]}

Wu, Zuliang ^{[1
]}

Tang, Xiujuan ^{[1
]}

Yao, Shuiliang ^{[1
]}

Lu, Hao ^{[1
]}

机构：

[1] Zhejiang Gongshang Univ, Sch Environm Sci & Engn, Hangzhou 310012, Zhejiang, Peoples R China

[2] China Univ Petr, Coll Mech & Elect Engn, Qingdao 266580, Peoples R China

[3] Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2014年 / 118卷 / 27期

基金：

中国国家自然科学基金;

关键词：

TITANIA-SUPPORTED MANGANESE; NO REDUCTION; NITRIC-OXIDE; PART II; NH3; OXIDATION; PERFORMANCE; IDENTIFICATION; MECHANISM; CU;

D O I：

10.1021/jp412828p

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：

Zr is added to the Fe-Mn/Ti catalyst to increase NO conversion and improve SO2 tolerance. It is found that 0.03 is the optimal ratio for Zr/(Ti + Zr). With this ratio, the NO conversion below 150 degrees C increases, and the SO2 poisoning is alleviated, while the further increase of Zr does not have a positive effect on NO conversion and SO2 tolerance. With Zr additive, more manganese oxides are reduced in the form of MnO2 and Mn2O3 at lower temperature in H-2-TPR, and the total amount of H-2 consumption rises, indicating better redox properties. It leads to the increase of NO complexes on the catalysts. Despite the small decrease of NH3 adsorption, the reaction via the L-H way is promoted and NO conversion increases. Furthermore, more nitrates and NO2 are formed in the reaction with SO2 on Fe-Mn/Ti Zr(0.03) compared to Fe-Mn/Ti, so the L-H reaction way is less inhibited by SO2 with Zr additive, and the SO2 tolerance of this catalyst is also improved.

引用

页码：14866 / 14875

页数：10

共 47 条

[1] Mixed manganese oxide platinum catalysts for total oxidation of model gas from wood boilers [J].

Carno, J ;

Ferrandon, M ;

Bjornbom, E ;

Jaras, S .

APPLIED CATALYSIS A-GENERAL, 1997, 155 (02) :265-281

[2] Improvement of Activity and SO2 Tolerance of Sn-Modified MnOx-CeO2 Catalysts for NH3-SCR at Low Temperatures [J].

Chang, Huazhen ;

Chen, Xiaoyin ;

Li, Junhua ;

Ma, Lei ;

Wang, Chizhong ;

Liu, Caixia ;

Schwank, Johannes W. ;

Hao, Jiming .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2013, 47 (10) :5294-5301

[3] Pillared smectite modified with carbon and manganese as catalyst for SCR of NOx with NH3.: Part II.: Temperature-programmed studies [J].

Chmielarz, L ;

Dziembaj, R ;

Grzybek, T ;

Klinik, J ;

Lojewski, T ;

Olszewska, D ;

Wegrzyn, A .

CATALYSIS LETTERS, 2000, 70 (1-2) :51-56

[4] SCR of NO by NH3 on alumina or titania pillared montmorillonite modified with Cu or Co -: Part II.: Temperature programmed studies [J].

Chmielarz, L ;

Kustrowski, P ;

Zbroja, M ;

Gil-Knap, B ;

Datka, J ;

Dziembaj, R .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2004, 53 (01) :47-61

[5] Siting and Distribution of Framework Aluminium Atoms in Silicon-Rich Zeolites and Impact on Catalysis [J].

Dedecek, J. ;

Sobalik, Z. ;

Wichterlova, B. .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2012, 54 (02) :135-223

[6] Investigation of the selective catalytic reduction of nitric oxide with ammonia over Mn/TiO2 catalysts through transient isotopic labeling and in situ FT-IR studies [J].

Ettireddy, Padmanabha Reddy ;

Ettireddy, Neeraja ;

Boningari, Thirupathi ;

Pardemann, Robert ;

Smirniotis, Panagiotis G. .

JOURNAL OF CATALYSIS, 2012, 292 :53-63

[7] Nanostructured oxides in chemistry:: Characterization and properties [J].

Fernández-García, M ;

Martínez-Arias, A ;

Hanson, JC ;

Rodriguez, JA .

CHEMICAL REVIEWS, 2004, 104 (09) :4063-4104

[8] Ceria supported on sulfated zirconia as a superacid catalyst for selective catalytic reduction of NO with NH3 [J].

Gao, Shan ;

Chen, Xiongbo ;

Wang, Haiqiang ;

Mo, Jiansong ;

Wu, Zhongbiao ;

Liu, Yue ;

Weng, Xiaole .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2013, 394 :515-521

[9] Promoting effect of calcium doping on the performances of MnOx/TiO2 catalysts for NO reduction with NH3 at low temperature [J].

Gu, Tingting ;

Jin, Ruiben ;

Liu, Yue ;

Liu, Hongfeng ;

Weng, Xiaole ;

Wu, Zhongbiao .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2013, 129 :30-38

[10] Identification of neutral and charged NxOy surface species by IR spectroscopy [J].

Hadjiivanov, KI .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2000, 42 (1-2) :71-144

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