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

被引：70

作者：

Fu, H

Song, WG

Haw, JF

机构：

[1] Univ So Calif, Loker Hydrocarbon Res Inst, Los Angeles, CA 90089 USA

[2] Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA

来源：

CATALYSIS LETTERS | 2001年 / 76卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

methanol conversion; aromatic hydrocarbons; deactivation; ex situ analysis; solid state NMR; solid acid catalysts;

D O I：

10.1023/A:1016719924539

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：

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 as well.

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收藏

页码：89 / 94

页数：6

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