Thermostability of Copper-Chromium Oxide Catalysts on Alumina Support Promoted by Lanthanum and Cerium Full article
Conference |
Scientific Bases for the Preparation of Heterogeneous Catalysts : 6th International Symposium 05-08 Sep 1994 , Louvain-La-Neuve |
||||
---|---|---|---|---|---|
Source | Preparation of Catalysts VI. Scientific Bases for the Preparation of Heterogeneous Catalysts : Proceedings of the Sixth International Symposium, 5-8 September 1994, Louvain-La-Neuve Compilation, 1995. 1182 c. |
||||
Journal |
Studies in Surface Science and Catalysis
ISSN: 0167-2991 |
||||
Output data | Year: 1995, Volume: 91, Number: C, Pages: 1145-1152 Pages count : 8 DOI: 10.1016/S0167-2991(06)81859-8 | ||||
Authors |
|
||||
Affiliations |
|
Abstract:
Aluminum–copper–chromium-oxide catalysts are widely used in highly exothermal catalytic combustion and VOC removal, although the interaction of the active component with the support through catalytic process yields phase conversions and causes deactivation of the catalyst. To increase the catalyst thermostability, which is primarily determined by that of the support, the latter is modified by various additives, decelerating phase conversion in the support. The X-ray method was recently used to study the thermal stability of alumina supports promoted with La2O3 and CeO2, as well as the phase composition and thermal stability of Cr/Al2O3, Cu/Al2O3, and Cr–Cu/Al2O3. This chapter presents a comparison among the thermal stabilities of Cr–, Cu–, and Cr–Cu systems on alumina support promoted by La and Ce. La ions introduced into alumina structure decrease the solubility of Cu and Cr ions, thus, providing the decrease of the mineralizing effect. The results obtained from the data available on the mineralizing effect of Cu suggest that to suppress α-phase formation in alumina catalysts, the introduced stabilizing ion should first restrict the solubility of the catalyst components possessing a pronounced mineralizing effect and then form a compound with the alumina stable at high temperatures.
Cite:
Shkrabina R.A.
, Koryabkina N.A.
, Kirichenko O.A.
, Ushakov V.A.
, Kapteijn F.
, Ismagilov Z.R.
Thermostability of Copper-Chromium Oxide Catalysts on Alumina Support Promoted by Lanthanum and Cerium
In compilation Preparation of Catalysts VI. Scientific Bases for the Preparation of Heterogeneous Catalysts : Proceedings of the Sixth International Symposium, 5-8 September 1994, Louvain-La-Neuve. 1995. – C.1145-1152. DOI: 10.1016/S0167-2991(06)81859-8 WOS Scopus РИНЦ
Thermostability of Copper-Chromium Oxide Catalysts on Alumina Support Promoted by Lanthanum and Cerium
In compilation Preparation of Catalysts VI. Scientific Bases for the Preparation of Heterogeneous Catalysts : Proceedings of the Sixth International Symposium, 5-8 September 1994, Louvain-La-Neuve. 1995. – C.1145-1152. DOI: 10.1016/S0167-2991(06)81859-8 WOS Scopus РИНЦ
Dates:
Published print: | Jan 1, 1995 |
Published online: | Sep 2, 2007 |
Identifiers:
Web of science | WOS:A1995BE35H00118 |
Scopus | 2-s2.0-77957313419 |
Elibrary | 29856132 |
Chemical Abstracts | 1995:799713 |
Chemical Abstracts (print) | 123:209782 |
OpenAlex | W1578332293 |