Liquid-phase degradation of polyethylene wax over mordenite catalysts with different Si Al molar ratios

被引：19

作者：

You, YS

Shim, JS

Kim, JH

Seo, G ^{[1
]}

机构：

[1] Chonnam Natl Univ, Dept Chem Technol, Kwangju 500757, South Korea

[2] Chonnam Natl Univ, Res Inst Catalysis, Kwangju 500757, South Korea

[3] Keopyung Chem Co Ltd, Dept Prod Control, Kwangyang 545100, South Korea

来源：

CATALYSIS LETTERS | 1999年 / 59卷 / 2-4期

关键词：

polyethylene wax; mordenite; liquid-phase degradation; dealumination;

D O I：

10.1023/A:1019089025433

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：

The catalytic liquid-phase degradation of polyethylene wax into fuel oil was studied using mordenite catalysts with various Si/Al molar ratios prepared by dealumination. The total yield of gas and liquid products showed a volcano plot along the Si/Al molar ratio of mordenite. No significant change was observed in the composition of the liquid product for all catalysts used in this study. Fast deactivation was anticipated on the mordenite catalysts with low Si/Al molar ratios such as 5 and 10, due to pore blocking by the carbon deposited on the external surface of the zeolite. A high activity and a long catalyst life were obtained on the mordenite catalyst with a Si/Al molar ratio of 12.

引用

页码：221 / 227

页数：7

共 25 条

[1] INFLUENCE OF FRAMEWORK ALUMINUM GRADIENTS ON THE CATALYTIC ACTIVITY OF Y-ZEOLITES - CRACKING OF GAS-OIL ON Y-ZEOLITES DEALUMINATED BY DIFFERENT PROCEDURES [J].