Influence of gas hourly space velocity on the activity of monolithic catalysts for the simultaneous removal of soot and NOx

被引：20

作者：

Ascaso, Sonia ^{[1
]}

Elena Galvez, Maria ^{[1
,2
,3
]}

Da Costa, Patrick ^{[2
,3
]}

Moliner, Rafael ^{[1
]}

Lazaro Elorri, Maria Jesus ^{[1
]}

机构：

[1] CSIC, Inst Carboquim, Miguel Luesma Castan 4, Zaragoza 50018, Spain

[2] Sorbonne Univ, Univ Paris 06, Inst Jean Le Rond dAlembert, F-78210 St Cyr Lecole, France

[3] CNRS, Inst Jean Le Rond dAlembert, UMR 7190, F-78210 St Cyr Lecole, France

来源：

COMPTES RENDUS CHIMIE | 2015年 / 18卷 / 10期

关键词：

DeNO(x); Soot combustion; Exhaust gas; Diesel engine; GHSV; COMPLEX OXIDE CATALYSTS; DIESEL-ENGINE EXHAUST; NITROGEN-OXIDES; STRUCTURED CATALYSTS; OXIDATION; POTASSIUM; COMBUSTION; CO; PARTICULATE; MECHANISM;

D O I：

10.1016/j.crci.2015.03.017

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cordierite-supported structured catalysts were prepared with several alumina-based suspensions containing K. Cs or Ba as alkali promoter, and Co, or Cu as active metals. The prepared catalysts were tested in a lab installation with a gas hourly space velocity (GHSV) from 1300 h(-1) to the one representative of the exhaust gases of a diesel engine, i.e. GHSV = 36,690 h(-1). Significant differences in the behavior of the catalysts are observed when increasing the GHSV, pointing to different predominant factors taking place in each case depending on the active metal and the alkali promoter used. (C) 2015 Published by Elsevier Masson SAS on behalf of Academie des sciences.

引用

页码：1007 / 1012

页数：6

共 33 条

[1] Investigation of Cs-Cu/ZrO2 systems for simultaneous NOx reduction and carbonaceous particles oxidation [J].

Aissat, Aissa ;

Siffert, Stephane ;

Courcot, Dominique .

CATALYSIS TODAY, 2012, 191 (01) :90-95

[2] On the influence of the alumina precursor in Fe-K/Al2O3 structured catalysts for the simultaneous removal of soot and NOx: From surface properties to reaction mechanism [J].

Ascaso, Sonia ;

Elena Galvez, Maria ;

Da Costa, Patrick ;

Moliner, Rafael ;

Jesus Lazaro, Maria .

COMPTES RENDUS CHIMIE, 2014, 17 (7-8) :681-686

[3] Intrinsic reactivity of alkaline and alkaline-earth metal oxide catalysts for oxidation of soot [J].

Castoldi, Lidia ;

Matarrese, Roberto ;

Lietti, Luca ;

Forzatti, Pio .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2009, 90 (1-2) :278-285

[4] The role of NO in the regeneration of catalytic ceramic filters for soot removal from exhaust gases [J].

Ciambelli, P ;

Palma, V ;

Russo, P ;

Vaccaro, S .

CATALYSIS TODAY, 2000, 60 (1-2) :43-49

[5] Me (Cu, Co, V)-K/Al2O3 supported catalysts for the simultaneous removal of soot and nitrogen oxides from diesel exhausts [J].

Elena Galvez, Maria ;

Ascaso, Sonia ;

Moliner, Rafael ;

Jesus Lazaro, Maria .

CHEMICAL ENGINEERING SCIENCE, 2013, 87 :75-90

[6] Studies on kinetics and reactions mechanism of La2-xKxCu1-yVyO4 layered perovskites for the combined removal of diesel particulate and NOx [J].

Fino, D ;

Fino, P ;

Saracco, G ;

Specchia, V .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 43 (03) :243-259

[7] Influence of the Alkali Promoter on the Activity and Stability of Transition Metal (Cu, Co, Fe) Based Structured Catalysts for the Simultaneous Removal of Soot and NOx [J].

Galvez, M. E. ;

Ascaso, S. ;

Moliner, R. ;

Lazaro, M. J. .

TOPICS IN CATALYSIS, 2013, 56 (1-8) :493-498

[8]

Galvez M.E., 2013, MOD RES CAT, V2, P57

[9] Power-bench demonstration of the Pt-catalysed C3H6-SCR of NOx in a diesel exhaust [J].

Garrigos-Pastor, G. ;

Parres-Esclapez, S. ;

Bueno-Lopez, A. ;

Illan-Gomez, M. J. ;

Salinas-Martinez de Lecea, C. .

APPLIED CATALYSIS A-GENERAL, 2009, 354 (1-2) :63-71

[10] Potassium promoted iron oxide catalysts for simultaneous catalytic removal of nitrogen oxides and soot from diesel exhaust gas [J].

Hizbullah, K ;

Kureti, S ;

Weisweiler, W .

CATALYSIS TODAY, 2004, 93-5 :839-843

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