Catalytic conversion of polyolefins into fuels over zeolite beta

被引：121

作者：

Aguado, J ^{[1
]}

Serrano, DP ^{[1
]}

Escola, JM ^{[1
]}

Garagorri, E ^{[1
]}

Fernández, JA ^{[1
]}

机构：

[1] Univ Complutense Madrid, Fac Chem, Dept Chem Engn, E-28040 Madrid, Spain

来源：

POLYMER DEGRADATION AND STABILITY | 2000年 / 69卷 / 01期

关键词：

D O I：

10.1016/S0141-3910(00)00023-9

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The catalytic degradation of polypropylene and both low- and high-density polyethylene over different samples of zeolite beta has been investigated. Zeolite beta synthesized by the fluoride method has a low activity for the cracking of polyolefins, which is related to its large crystal size (12 mu m) and poor aluminium incorporation. In contrast, zeolite beta synthesized from amorphous xerogels consists of small crystallites (less than or equal to 200 Mm) and allows all the polyolefins to be degraded with high conversion (40-60%) and good selectivity towards C-5-C-12 hydrocarbons (60-70%), heavier products being hardly obtained (< 6%). The incorporation of titanium into the BEA structure has been proved to enhance the catalytic activity, as denoted by the highest conversion per Al atom obtained with the Ti-Al-beta sample compared to Al-beta. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：11 / 16

页数：6

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