IR study of the secondary reaction of ethylene oxide over silver catalyst supported on mesoporous material

被引：8

作者：

Jung, KH ^{[1
]}

Chung, KH ^{[1
]}

Kim, MY ^{[1
]}

Kim, JH ^{[1
]}

Seo, G ^{[1
]}

机构：

[1] Honam Petrochem Co Ltd, Yeochon 555200, Chonnam, South Korea

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 1999年 / 16卷 / 03期

关键词：

ethylene oxide; partial oxidation; silver catalyst; MCM-41 mesoporous material; silane modification;

D O I：

10.1007/BF02707132

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The secondary reaction of ethylene oxide over silver catalyst supported on MCM-41 mesoporous material was investigated by the in-situ IR method. MCM-41 mesoporous material with a large content of hydroxyl group was very active in catalyzing the isomerization of ethylene oxide to acetaldehyde. The reduction of hydroxyl group by silane treatment or silver loading suppressed the isomerization of ethylene oxide. The selectivity for ethylene oxide in the partial oxidation of ethylene is enhanced by silane modification, revealing the acceleration of the consumption of ethylene oxide on the hydroxyl group.

引用

页码：396 / 400

页数：5

共 13 条

[1] TRANSIENT-RESPONSE AND INFRARED STUDIES OF ETHYLENE-OXIDE REACTIONS ON SILVER CATALYSTS AND SUPPORTS [J].

BULUSHEV, DA ;

PAUKSHTIS, EA ;

NOGIN, YN ;

BALZHINIMAEV, BS .

APPLIED CATALYSIS A-GENERAL, 1995, 123 (02) :301-322

[2]

Chen JS, 1995, ANGEW CHEM INT EDIT, V34, P2694

[3]

JINGFA D, 1992, J CATAL, V138, P395

[4]

JUNG KH, 1997, HWAHAK KONGHAK, V35, P895

[5]

JUNG KH, UNPUB REACT KINET CA

[6] MECHANISM OF SELECTIVE OXIDATION OF ETHYLENE TO ETHYLENE-OXIDE [J].

KILTY, PA ;

SACHTLER, WM .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1974, 10 (01) :1-16

[7] ORDERED MESOPOROUS MOLECULAR-SIEVES SYNTHESIZED BY A LIQUID-CRYSTAL TEMPLATE MECHANISM [J].

KRESGE, CT ;

LEONOWICZ, ME ;

ROTH, WJ ;

VARTULI, JC ;

BECK, JS .

NATURE, 1992, 359 (6397) :710-712

[8] SUPPORT PARTICIPATION IN CHEMISTRY OF ETHYLENE OXIDATION ON SILVER CATALYSTS [J].

LEE, JK ;

VERYKIOS, XE ;

PITCHAI, R .

APPLIED CATALYSIS, 1988, 44 (1-2) :223-237

[9] HIGH-SURFACE-AREA ALPHA-ALUMINAS .3. OXIDATION OF ETHYLENE, ETHYLENE-OXIDE, AND ACETALDEHYDE OVER SILVER DISPERSED ON HIGH-SURFACE-AREA ALPHA-ALUMINA [J].

MAO, CF ;

VANNICE, MA .

APPLIED CATALYSIS A-GENERAL, 1995, 122 (01) :61-76

[10]

RAH SC, 1978, HWAHAK KONGHAK, V16, P109

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