Selectivity to olefins of Fe/SiO2-MgO catalysts in the Fischer-Tropsch reaction

被引：47

作者：

Gallegos, NG ^{[1
]}

Alvarez, AM ^{[1
]}

Cagnoli, MV ^{[1
]}

Bengoa, JF ^{[1
]}

Marchetti, SG ^{[1
]}

Mercader, RC ^{[1
]}

Yeramian, AA ^{[1
]}

机构：

[1] COMIS INVEST CIENTIFICAS PCIA BS AS,CIC,RA-1900 LA PLATA,ARGENTINA

来源：

JOURNAL OF CATALYSIS | 1996年 / 161卷 / 01期

关键词：

D O I：

10.1006/jcat.1996.0170

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 ; 081704 ;

摘要：

SiO2 covered with MgO has been used as support of iron catalysts in the Fischer-Tropsch reaction. Catalysts of 5% (w/w) iron concentration and 2, 4, and 8% (w/w) of MgO on SiO2 were prepared. Selective chemisorption of CO, volumetric oxidation, and M8ssbauer spectroscopy were used to characterize the type of iron species and the metallic crystal sizes. MgO covers the SiO2 surface and modifies the metallic crystal size. The activity to total hydrocarbons increases with the amount of MgO added. An optimal concentration of about 4% (w/w) was found to have the highest selectivity to olefins. (C) 1996 Academic Press, Inc.

引用

页码：132 / 142

页数：11

共 45 条

[1] IRON ALLOY FISCHER-TROPSCH CATALYSTS .3. CONVERSION DEPENDENCE OF SELECTIVITY AND WATER-GAS SHIFT [J].

AMELSE, JA ;

SCHWARTZ, LH ;

BUTT, JB .

JOURNAL OF CATALYSIS, 1981, 72 (01) :95-110

[2]

AMELSE JA, 1978, J PHYS CHEM-US, V82, P5

[3] EFFECTS OF MANGANESE OXIDE AND SULFATE ON OLEFIN SELECTIVITY OF IRON SUPPORTED CATALYSTS IN THE FISCHER-TROPSCH REACTION [J].

BARRAULT, J ;

FORQUY, C ;

PERRICHON, V .

APPLIED CATALYSIS, 1983, 5 (01) :119-125

[4]

Bartholomew C.H., 1991, STUD SURF SCI CATAL, V64, P158

[5] EVOLUTION OF SURFACE AND BULK COMPOSITIONS OF AN IRON CATALYST IN RELATION TO CATALYTIC ACTIVITY FOR THE FISCHER-TROPSCH REACTION [J].

BIANCHI, D ;

BORCAR, S ;

TEULEGAY, F ;

BENNETT, CO .

JOURNAL OF CATALYSIS, 1983, 82 (02) :442-456

[6] MOSSBAUER STUDIES OF ULTRAFINE IRON-CONTAINING PARTICLES ON A CARBON SUPPORT [J].

BODKER, F ;

MORUP, S ;

OXBORROW, CA ;

LINDEROTH, S ;

MADSEN, MB ;

NIEMANTSVERDRIET, JW .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (31) :6555-6568

[7] A THEORETICAL-STUDY OF PDCONA AND [PDCONA]+ COMPLEXES AS A SIMPLE-MODEL OF A PROMOTED CATALYST [J].

BONACICKOUTECKY, V ;

KOUTECKY, J ;

FANTUCCI, P ;

PONEC, V .

JOURNAL OF CATALYSIS, 1988, 111 (02) :409-417

[8] SURFACE, CATALYTIC AND MAGNETIC-PROPERTIES OF SMALL IRON PARTICLES .1. PREPARATION AND CHARACTERIZATION OF SAMPLES [J].

BOUDART, M ;

DELBOUILLE, A ;

DUMESIC, JA ;

KHAMMOUMA, S ;

TOPSOE, H .

JOURNAL OF CATALYSIS, 1975, 37 (03) :486-502

[9] SURFACE, CATALYTIC, AND MAGNETIC-PROPERTIES OF SMALL IRON PARTICLES - EFFECT OF CHEMISORPTION OF HYDROGEN ON MAGNETIC-ANISOTROPY .4. [J].

BOUDART, M ;

DUMESIC, JA ;

TOPSOE, H .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1977, 74 (03) :806-810

[10] STRUCTURE SENSITIVITY OF HYDROCARBON SYNTHESIS FROM CO AND H2 [J].

BOUDART, M ;

MCDONALD, MA .

JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (11) :2185-2195

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