Study of the temperature window for the selective reduction of NOx in O2-rich gas mixtures by metal-loaded carbon

被引：21

作者：

Bueno-Lopez, A. ^{[1
]}

Soriano-Mora, J. M. ^{[1
]}

Garcia-Garcia, A. ^{[1
]}

机构：

[1] Univ Alicante, Dept Inorgan Chem, E-03080 Alicante, Spain

来源：

CATALYSIS COMMUNICATIONS | 2006年 / 7卷 / 09期

关键词：

NOx reduction; metal catalyst; carbon combustion; carbon gasification; coalchar;

D O I：

10.1016/j.catcom.2006.02.010

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：

The selectivity of different catalysts towards NOx reduction by carbon against O-2 combustion has been studied. It allowed concluding that selective catalysts are those that showed carbon conversion onset temperature about 400 degrees C, potassium being the most promising candidate among the catalysts studied. Catalysts that were very active below 400 degrees C such as copper and rubidium were not selective for NOx reduction and neither those catalysts that only reacted well above 400 degrees C, such as calcium, iron, cobalt, nickel, cerium and zirconium. In addition, most catalysts studied favoured CO2 formation as reaction product with regard to CO, alkali metals being the most effective. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：678 / 684

页数：7

共 16 条

[1] A review of the kinetics of the nitric oxide carbon reaction [J].

Aarna, I ;

Suuberg, EM .

FUEL, 1997, 76 (06) :475-491

[2] Enhanced soot oxidation by lattice oxygen via La3+-doped CeO2 [J].

Bueno-López, A ;

Krishna, K ;

Makkee, M ;

Moulijn, JA .

JOURNAL OF CATALYSIS, 2005, 230 (01) :237-248

[3] Potassium-containing coal-pellets for NOx reduction under gas mixtures of different composition [J].

Bueno-López, A ;

García-García, A .

CARBON, 2004, 42 (8-9) :1565-1574

[4] Influence of potassium loading at different reaction temperatures on the NOx reduction process by potassium-containing coal pellets [J].

Bueno-López, A ;

García-García, A ;

Caballero, JA ;

Linares-Solano, A .

FUEL, 2003, 82 (03) :267-274

[5] Catalytic combustion of soot with a O2/NO mixture.: KNO3/ZrO2 catalysts [J].

Carrascull, A ;

Lick, ID ;

Ponzi, EN ;

Ponzi, MI .

CATALYSIS COMMUNICATIONS, 2003, 4 (03) :124-128

[6] Selective porosity development by calcium-catalyzed carbon gasification [J].

CazorlaAmoros, D ;

RibesPerez, D ;

RomanMartinez, MC ;

LinaresSolano, A .

CARBON, 1996, 34 (07) :869-878

[7] Modification of the surface chemistry of activated carbons [J].

Figueiredo, JL ;

Pereira, MFR ;

Freitas, MMA ;

Orfao, JJM .

CARBON, 1999, 37 (09) :1379-1389

[8]

GOMEZ MJI, 1996, ENERG FUEL, V10, P158

[9]

GOMEZ MJI, 1999, APPL CATAL B-ENVIRON, V20, P267

[10] The kinetics of NO and N2O reduction over coal chars in fluidised-bed combustion [J].

Li, YH ;

Lu, GQ ;

Rudolph, V .

CHEMICAL ENGINEERING SCIENCE, 1998, 53 (01) :1-26

← 1 2 →