Degradation of polystyrene using montmorillonite clay catalysts

被引:8
|
作者
Jang, BS [1 ]
Cho, KH [1 ]
Kim, KH [1 ]
Park, DW [1 ]
机构
[1] Pusan Natl Univ, Dept Chem Engn, Pusan 609735, South Korea
来源
关键词
polystyrene; catalytic degradation; montmorillonite clay; aromatics;
D O I
10.1007/s11144-005-0297-z
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 performance of acid-treated montmorillonite catalysts in the degradation of polystyrene (PS) was investigated in this study. The degradation was carried out in a semi-batch reactor with a mixture of PS and catalyst at 400-450 degrees C. The commercial Sud Chemie acid-treated montmorillonite clays (K-series) showed good catalytic activity for the degradation of PS. The styrene monomer and ethylbenzene were major liquid products. The increase of surface acidity enhanced further cracking of styrene dimer and trimer to produce styrene monomer. Higher production of ethylbenzene for K30 may be related to its bigger pore volume and surface area compared to those of K5. High degradation temperature favored styrene monomer production.
引用
收藏
页码:75 / 82
页数:8
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