Polycyclic aromatics formation in HSAPO-34 during methanol-to-olefin catalysis: ex situ characterization after cryogenic grinding

Citation
H. Fu et al., Polycyclic aromatics formation in HSAPO-34 during methanol-to-olefin catalysis: ex situ characterization after cryogenic grinding, CATAL LETT, 76(1-2), 2001, pp. 89-94
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
CATALYSIS LETTERS
ISSN journal
1011-372X → ACNP
Volume
76
Issue
1-2
Year of publication
2001
Pages
89 - 94
Database
ISI
SICI code
1011-372X(2001)76:1-2<89:PAFIHD>2.0.ZU;2-B
Abstract
Cryogenic grinding using a freezer mill is shown to be a useful adjunct to acid digestion for the ex situ analysis of aromatic hydrocarbons entrained in microporous catalysts. In the course of converting methanol to olefins, HSAPO-34 contains first methylbenzenes and later methylnapthalenes. As the catalyst deactivates, significant amounts of phenanthrene and pyrene form a s well.