期刊
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
卷 104, 期 -, 页码 479-484出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2013.05.023
关键词
Polyethylene; Restructured clays; Pillared clays; Catalytic pyrolysis
In this work, three restructured smectite clays, namely a saponite, a montmorillonite, and a beidellite, as well as their Al- and Fe/Al-pillared derivatives, have been tested for their performance in the catalytic cracking of a medium-density polyethylene. All reduce the cracking process temperature to 300 C, as compared with >650 C for uncatalysed pyrolysis. Although generally less active than a selected H-ZSM5 (Si/Al = 235) zeolite, they are instead superior to this catalyst as regards liquid hydrocarbon formation. Different products categories can be obtained by different catalysts: in particular a choice between aliphatics and aromatics products can be made by utilising the appropriate catalysts. (C) 2013 Elsevier B.V. All rights reserved.
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