ACTIVITY AND SELECTIVITY OF PT-SN/NB(2)O(5) IN N-HEPTANE CONVERSION

被引：18

作者：

ARANDA, DAG ^{[1
]}

PASSOS, FB ^{[1
]}

NORONHA, FB ^{[1
]}

SCHMAL, M ^{[1
]}

机构：

[1] UNIV FED FLUMINENSE, DEPT ENGN QUIM, BR-24210 NITEROI, BRAZIL

来源：

CATALYSIS TODAY | 1993年 / 16卷 / 3-4期

关键词：

D O I：

10.1016/0920-5861(93)80079-G

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The catalytic properties of niobia and alumina supported platinum and platinum-tin catalysts were evaluated at the conversion of n-heptane at 773K. Over a niobia supported platinum catalyst the reaction proceeded via a monofunctional path, with a high selectiviy for olefins. This was explained by the formation of a SMSI state, leading to the coverage of platinum particles by NbO(x) and the formation of metal-support interfacial sites. The presence of tin inhibited the formation of a SMSI state, causing a decrease in the olefins/toluene ratio.

引用

页码：397 / 405

页数：9

共 25 条

[1] HYDROCRACKING OF SATURATED HYDROCARBONS OVER EVAPORATED METAL FILMS [J].

ANDERSON, JR ;

BAKER, BG .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1963, 271 (1344) :402-+

[2]

ARANDA DAG, UNPUB APPL CATAL

[3] MECHANISMS OF HYDROGENOLYSIS AND ISOMERIZATION OF HYDROCARBONS ON METALS .2. MECHANISMS OF ISOMERIZATION OF HEXANES ON PLATINUM CATALYSTS [J].

BARRON, Y ;

MAIRE, G ;

MULLER, JM ;

GAULT, FG .

JOURNAL OF CATALYSIS, 1966, 5 (03) :428-&

[4] ADSORPTION OF CARBON-MONOXIDE ON PLATINUM ALLOYS - AN INFRARED INVESTIGATION [J].

BASTEIN, AGTM ;

TOOLENAAR, FJCM ;

PONEC, V .

JOURNAL OF CATALYSIS, 1984, 90 (01) :88-95

[5] CATALYTIC REFORMING OF N-HEPTANE ON PLATINUM, TIN AND PLATINUM-TIN SUPPORTED ON ALUMINA [J].

BELTRAMINI, J ;

TRIMM, DL .

APPLIED CATALYSIS, 1987, 31 (01) :113-118

[6] ACTIVITY, SELECTIVITY AND COKING OVER MONO-METALLIC AND BIMETALLIC REFORMING CATALYSTS [J].

BELTRAMINI, J ;

TRIMM, DL .

APPLIED CATALYSIS, 1987, 32 (1-2) :71-83

[7] PLATINUM-TIN REFORMING CATALYSTS .1. THE OXIDATION-STATE OF TIN AND THE INTERACTION BETWEEN PLATINUM AND TIN [J].

BURCH, R .

JOURNAL OF CATALYSIS, 1981, 71 (02) :348-359

[8]

BURCH R, 1983, APPL CATAL, V6, P121, DOI 10.1016/0166-9834(83)80192-4

[9]

BURSIAN NR, 1984, 8TH P INT C CAT W BE, V2, P481

[10]

CLIPPINGER E, 1836, Patent No. 353143

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