REMOVAL OF NITRIC-OXIDE ON METALLOSILICATE CATALYSTS

被引：40

作者：

INUI, T

IWAMOTO, S

KOJO, S

SHIMIZU, S

HIRABAYASHI, T

机构：

[1] Division of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Sakyo-ku, Kyoto

来源：

CATALYSIS TODAY | 1994年 / 22卷 / 01期

关键词：

D O I：

10.1016/0920-5861(94)80091-X

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The catalytic conversion of NO under O-2 excess conditions with the addition of a low concentration of hydrocarbons was investigated. The stability of the catalyst structure was compared between ion-exchanged ZSM-5 and Cu-incorporated silicate having MFI structure (metallosilicate). The advantage of metallosilicate is emphasized. The performance of various kinds of metallosilicates for NO conversion was evaluated and it was found that metallosilicates such as H-Co-silicate which has a proper acid strength and redox capacity, in other words, a proper activity for hydrocarbon conversion and hydrocarbon combustion, were the best catalysts for the purpose. The reaction characteristics on the metallosilicate catalysts were explained by the microscopic sequential reaction (MSR) mechanism.

引用

页码：41 / 57

页数：17

共 48 条

[1] MECHANISM OF THE LEAN NOX REACTION OVER CU/ZSM-5 [J].

ANSELL, GP ;

DIWELL, AF ;

GOLUNSKI, SE ;

HAYES, JW ;

RAJARAM, RR ;

TRUEX, TJ ;

WALKER, AP .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1993, 2 (01) :81-100

[2] ROLE OF PROPENE IN THE SELECTIVE REDUCTION OF NITROGEN MONOXIDE IN COPPER-EXCHANGED ZEOLITES [J].

BURCH, R ;

MILLINGTON, PJ .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1993, 2 (01) :101-116

[3] REDUCTION OF NO OVER IMPREGNATED CU/ZSM-5 IN THE PRESENCE OF O-2 [J].

DITRI, JL ;

SACHTLER, WMH .

CATALYSIS LETTERS, 1992, 15 (03) :289-295

[4] SELECTIVE REDUCTION OF NITRIC-OXIDE OVER CU/ZSM-5 - THE ROLE OF OXYGEN IN SUPPRESSING CATALYST DEACTIVATION BY CARBONACEOUS DEPOSITS [J].

DITRI, JL ;

SACHTLER, WMH .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1993, 2 (2-3) :L7-L15

[5]

FUJITANI Y, 1988, Patent No. 3735151

[6] AUTO EXHAUST CATALYSTS [J].

Funabiki, M. ;

Yamada, T. ;

Kayano, K. .

CATALYSIS TODAY, 1991, 10 (01) :33-43

[7]

GARCIN E, 1991, 1ST P JAP EC JOINT W, P139

[8] SELECTIVE CATALYTIC REDUCTION OF NITRIC-OXIDE BY PROPANE IN OXIDIZING ATMOSPHERE OVER COPPER-EXCHANGED ZEOLITES [J].

GOPALAKRISHNAN, R ;

STAFFORD, PR ;

DAVIDSON, JE ;

HECKER, WC ;

BARTHOLOMEW, CH .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1993, 2 (2-3) :165-182

[9]

HALL WK, 1992, CATAL LETT, V15, P311

[10]

HELD W, 1990, SAE900496 PAP

← 1 2 3 4 5 →