Simultaneous removal of NOX and SO2 with H2O2 over Fe based catalysts at low temperature

被引：55

作者：

Ding, Jie ^{[1
]}

Zhong, Qin ^{[1
]}

Zhang, Shule ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China

来源：

RSC ADVANCES | 2014年 / 4卷 / 11期

基金：

中国国家自然科学基金;

关键词：

HYDROGEN-PEROXIDE; FLUE-GAS; DECOMPOSITION; SURFACE; MECHANISM; KINETICS; OXIDE;

D O I：

10.1039/c3ra46418k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Simultaneous flue gas desulfurization and denitrification are achieved with (OH)-O-center dot radicals generated from H2O2 catalyzed by Fe based transition metal (Fe, Fe-Al, Fe-Ti, Fe-Si) oxides in the duct, followed by purification with ammonia-based glass made washing tower. The main recovered products are the ammonia nitrate and sulfate, which are important fertilizers. In this oxidation-removal process, 100% SO2 and 74% NOX removal efficiencies are achieved at the simulated flue gas temperature of 120-180 degrees C under the applied conditions with a space velocity of 36 000 h(-1). The experimental results show that the enhancement of Lewis acid benefits the generation of O-2 without (OH)-O-center dot radical production. The increase of Fe3+ bonded with hydroxyl group and points of zero charge value are beneficial to produce (OH)-O-center dot radicals, thus improving the NOX removal efficiency.

引用

页码：5394 / 5398

页数：5

共 19 条

[1] Simultaneous Desulfurization and Denitrification of Flue Gas by •OH Radicals Produced from O2+ and Water Vapor in a Duct [J].

Bai, Mindi ;

Zhang, Zhitao ;

Bai, Mindong .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2012, 46 (18) :10161-10168

[2] Hydrogenation of hydrogen peroxide over palladium/carbon in aqueous acidic medium containing different halide anions under static/flowing hydrogen [J].

Choudhary, Vasant R. ;

Samanta, Chanchal ;

Jana, Prabhas .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2007, 46 (10) :3237-3242

[3]

Cynthia T.W., 1985, Journal of Physical Chemistry, V89, P1569

[4] PLASMA CHEMICAL INVESTIGATIONS FOR NOX AND SO2 REMOVAL FROM FLUE-GASES [J].

DAHIYA, RP ;

MISHRA, SK ;

VEEFKIND, A .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 1993, 21 (03) :346-348

[5] Simultaneous determination of composition and thickness of thin iron-oxide films from XPS Fe 2p spectra [J].

Graat, PCJ ;

Somers, MAJ .

APPLIED SURFACE SCIENCE, 1996, 100 :36-40

[6] RETRACTED: Catalytic efficiency of iron(III) oxides in decomposition of hydrogen peroxide: Competition between the surface area and crystallinity of nanoparticles (Retracted article. See vol. 141, pg. 20566, 2019) [J].

Hermanek, Martin ;

Zboril, Radek ;

Medrik, No ;

Pechousek, Jiri ;

Gregor, Cenek .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (35) :10929-10936

[7] Synthesis, structural features, and reactivity of Fe-Mn mixed oxides prepared by microemulsion [J].

Herranz, T ;

Rojas, S ;

Ojeda, M ;

Perez-Alonso, FJ ;

Terreros, P ;

Pirota, K ;

Fierro, JLG .

CHEMISTRY OF MATERIALS, 2006, 18 (09) :2364-2375

[8] α-Fe2O3 nanorings prepared by a microwave-assisted hydrothermal process and their sensing properties [J].

Hu, Xianluo ;

Yu, Jimmy C. ;

Gong, Jingming ;

Li, Quan ;

Li, Guisheng .

ADVANCED MATERIALS, 2007, 19 (17) :2324-+

[9] The pH-dependent surface charging and the points of zero charge [J].

Kosmulski, M .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2002, 253 (01) :77-87

[10] Catalytic decomposition of hydrogen peroxide on iron oxide: Kinetics, mechanism, and implications [J].

Lin, SS ;

Gurol, MD .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1998, 32 (10) :1417-1423

← 1 2 →