THERMOGRAVIMETRIC STUDY OF THE CARBURIZATION AND COKING OF UNSUPPORTED AND CARBON-SUPPORTED FE, MO AND FE-MO CATALYSTS FOR FISCHER-TROPSCH SYNTHESIS

Authors
LIU J SHEN J GAO X LIN L
Citation
J. Liu et al., THERMOGRAVIMETRIC STUDY OF THE CARBURIZATION AND COKING OF UNSUPPORTED AND CARBON-SUPPORTED FE, MO AND FE-MO CATALYSTS FOR FISCHER-TROPSCH SYNTHESIS, Journal of thermal analysis, 40(3), 1993, pp. 1239-1244
Citations number
6
Categorie Soggetti
Chemistry Analytical
Journal title
Journal of thermal analysis → ACNP
ISSN journal
03684466
Volume
40
Issue
3
Year of publication
1993
Pages
1239 - 1244
Database
ISI
SICI code
0368-4466(1993)40:3<1239:TSOTCA>2.0.ZU;2-K
Abstract
Carburization and coke deposition of unsupported and carbon-supported Fe, Mo and Fe-Mo catalysts in syngas have been studied using thermogra vimetry. Compositions of the carbides formed are evaluated on the basi s of the amount of metals in the catalysts and amount of carbon deposi ted during carburization. It is shown that carburization temperature a nd the nature of the carbides formed (Fe5C2 and Fe2C for iron and Mo2C for molybdenum) depend on the metals but are influenced by the suppor t and metal loading. Coke deposition on these catalysts takes place as soon as carburization is complete.