Compositional and structural optimal design of a nanostructured diesel-soot combustion catalyst for a fast-regenerating trap

被引：46

作者：

Fino, D ^{[1
]}

Specchia, V ^{[1
]}

机构：

[1] Politecn Torino, Dept Chem Engn & Mat Sci, I-10129 Turin, Italy

来源：

CHEMICAL ENGINEERING SCIENCE | 2004年 / 59卷 / 22-23期

关键词：

CeO2-promoted PrCrO3 catalyst; particulate removal; optimisation; pollution; porous media; diesel-soot combustion;

D O I：

10.1016/j.ces.2004.07.012

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Particulate emissions from diesel engines are a serious environmental problem in urban areas. Driven by tighter and tighter regulations, a continuous research and development activity is in progress focused on downstream applications (i.e. exhaust emission after treatment), especially for fuel efficient, lean-burn vehicles, either diesel or spark ignited. This contribution is focused on the development of a new soot combustion catalyst (i.e. the PrCrO3 perovskite on CeO2 prepared by combustion synthesis) and a catalytic wall-flow trap, as well as on pilot plant tests carried out on a diesel engine bench. A comparison with literature data concerning Pt/Al2O3-catalysed traps is outlined showing improved performance for the new catalyst formulation. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：4825 / 4831

页数：7

共 18 条

[1] On the generation of aerosol for diesel particulate filtration studies [J].

Ambrogio, M ;

Saracco, G ;

Specchia, V ;

van Gulijk, C ;

Makkee, M ;

Moulijn, JA .

SEPARATION AND PURIFICATION TECHNOLOGY, 2002, 27 (03) :195-209

[2] Combustion synthesis of perovskite-type catalysts for natural gas combustion [J].

Civera, A ;

Pavese, M ;

Saracco, G ;

Specchia, V .

CATALYSIS TODAY, 2003, 83 (1-4) :199-211

[3] AN ASSOCIATION BETWEEN AIR-POLLUTION AND MORTALITY IN 6 UNITED-STATES CITIES [J].

DOCKERY, DW ;

POPE, CA ;

XU, XP ;

SPENGLER, JD ;

WARE, JH ;

FAY, ME ;

FERRIS, BG ;

SPEIZER, FE .

NEW ENGLAND JOURNAL OF MEDICINE, 1993, 329 (24) :1753-1759

[4] The role of suprafacial oxygen in some perovskites for the catalytic combustion of soot [J].

Fino, D ;

Russo, N ;

Saracco, G ;

Speechia, V .

JOURNAL OF CATALYSIS, 2003, 217 (02) :367-375

[5] Innovative means for the catalytic regeneration of particulate traps for diesel exhaust cleaning [J].

Fino, D ;

Fino, P ;

Saracco, G ;

Specchia, V .

CHEMICAL ENGINEERING SCIENCE, 2003, 58 (3-6) :951-958

[6] Filtration and catalytic abatement of diesel particulate from stationary sources [J].

Fino, D ;

Saracco, G ;

Specchia, V .

CHEMICAL ENGINEERING SCIENCE, 2002, 57 (22-23) :4955-4966

[7]

FINO P, 2003, ADV SCI TECHNOLOGY, V33, P355

[8] Catalytic combustion of hydrocarbons over perovskites [J].

Forni, L ;

Rossetti, I .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2002, 38 (01) :29-37

[9]

HERCK RM, 2001, CHEM ENG J, V82, P149

[10] REACTION KINETICS IN DIFFERENTIAL THERMAL ANALYSIS [J].

KISSINGER, HE .

ANALYTICAL CHEMISTRY, 1957, 29 (11) :1702-1706

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