Study of thermocatalytic decomposition of polyethylene and polyvinyl alcohol in the presence of an unsteady-state Fe-containing catalyst

被引：23

作者：

Maksimova, NI ^{[1
]}

Krivoruchko, OP ^{[1
]}

机构：

[1] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

来源：

CHEMICAL ENGINEERING SCIENCE | 1999年 / 54卷 / 20期

基金：

俄罗斯基础研究基金会;

关键词：

polyethylene; polyvinyl alcohol; thermocatalytic decomposition; graphitization; gas chromatography-mass spectroscopy; X-ray diffractometry;

D O I：

10.1016/S0009-2509(99)00160-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The thermal decomposition of low-density polyethylene (LDPE) and polyvinyl alcohol (PVA) in a nitrogen flow at a temperature range of 573-873 K was investigated in the presence of Fe-containing catalyst;s. In this temperature range decomposition of these polymers with formation of gaseous (C-1-C-4), liquid (C-5-C-30), and solid (carbon, arbide, graphite) products is observed. During this process, a-FeO(OH) used as a precursor of the catalyst is reduced to iron oxides and metal, and, therefore, it is in unsteady state. The unsteady state of catalyst allows one to affect on all stages of polymer decomposition. Gas chromatography-mass spectroscopy (GCMS) and X-ray diffractometry (XRD) show that the presence of the Fe-containing catalyst greatly affect both liquid and solid products of thermal decomposition of LDPE and PVA. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：4351 / 4357

页数：7

共 8 条

[1] IN-SITU TEM INVESTIGATION OF PROCESSES CATALYZED BY PD-NI ALLOY PARTICLES ON CARBON SUBSTRATES IN THE PRESENCE AND ABSENCE OF OXYGEN [J].