Structural and chemical influences on the MTO reaction: a comparison of chabazite and SAPO-34 as MTO catalysts

Authors
Dahl, IM Mostad, H Akporiaye, D Wendelbo, R
Citation
Im. Dahl et al., Structural and chemical influences on the MTO reaction: a comparison of chabazite and SAPO-34 as MTO catalysts, MICROP M M, 29(1-2), 1999, pp. 185-190
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
MICROPOROUS AND MESOPOROUS MATERIALS
ISSN journal
13871811 → ACNP
Volume
29
Issue
1-2
Year of publication
1999
Pages
185 - 190
Database
ISI
SICI code
1387-1811(199906)29:1-2<185:SACIOT>2.0.ZU;2-J
Abstract
A comparison of isostructural H-SAPO-34 and H-chabazite in high space-veloc ity experiments of the methanol to olefins (MTO) reaction has been performe d. The initial selectivity was shown to be similar for both catalysts, and also to be independent of acid site density. However, the deactivation rate was critically dependent on the acid site density. Thus, low acid-site den sity samples exhibited longer lifetimes at low space velocity conditions th an their high acid-site density analogues. (C) 1999 Elsevier Science B.V. A ll rights reserved.