Removal of NOx:: Part I.: Sorption/desorption processes on barium aluminate

被引：78

作者：

Hodjati, S ^{[1
]}

Bernhardt, P ^{[1
]}

Petit, C ^{[1
]}

Pitchon, V ^{[1
]}

Kiennemann, A ^{[1
]}

机构：

[1] ECPM, UMR 7515 CNRS, LERCSI, F-67070 Strasbourg, France

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 1998年 / 19卷 / 3-4期

关键词：

sorption; desorption; nitrogen oxides; diesel; lean-burn; barium aluminate;

D O I：

10.1016/S0926-3373(98)00077-0

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 [物理化学]; 081704 [应用化学];

摘要：

NOx adsorption/desorption capacities of barium aluminates were measured under representative exhaust gas mixture at temperatures below 550 degrees C. The solid doped with Pt or not, exhibits good NO2 sorption capacities with a reversible adsorption to desorption process. With bulk BaO, desorption was observed at high temperature. The different behaviour between the two catalysts is explained by the fact that strongly bonded carbonates are formed on bulk BaO while they do not exist on barium aluminate, therefore allowing the formation of nitrates which can be decomposed by a thermal process. SO2 poisoning was also studied. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：209 / 219

页数：11

共 13 条

[1]

MECHANISM OF THE SELECTIVE REDUCTION OF NITROGEN MONOXIDE ON PLATINUM-BASED CATALYSTS IN THE PRESENCE OF EXCESS OXYGEN [J].

BURCH, R ;

MILLINGTON, PJ ;

WALKER, AP .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1994, 4 (01) :65-94

[2]

FEKETE N, 970746 SAE

[3]

Removal of NOx:: Part II.: Species formed during the sorption/desorption processes on barium aluminates [J].

Hodjati, S ;

Bernhardt, P ;

Petit, C ;

Pitchon, V ;

Kiennemann, A .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1998, 19 (3-4) :221-232

[4]

EFFECT OF ADDITIVES ON THE SURFACE-AREA OF OXIDE SUPPORTS FOR CATALYTIC COMBUSTION [J].

MACHIDA, M ;

EGUCHI, K ;

ARAI, H .

JOURNAL OF CATALYSIS, 1987, 103 (02) :385-393

[5]

PITCHON V, 1997, CAPOC, V4, P105

[6]

STUDY ON PATENT LITERATURE OF CATALYSTS FOR A NEW NOX REMOVAL PROCESS [J].

TABATA, T ;

KOKITSU, M ;

OKADA, O .

CATALYSIS TODAY, 1994, 22 (01) :147-169

[7]

Takahashi N, 1995, EFCE PUBL S, P45

[8]

TRUEX TJ, 1992, PLATIN MET REV, V36, P2

[9]

WELLS AF, 1984, STRUCTURAL INORGANIC, P598

[10]

562516

← 1 2 →