Effect of Atmosphere and Added Materials on Recovery of Liquid Products by Thermal Decomposition of Polyethylene

1 January 1974

journal article
Published by Japan Petroleum Institute in Journal of The Japan Petroleum Institute

Vol. 17 (1) , 40-45
https://doi.org/10.1627/jpi1958.17.40

Abstract

For the purpose of recovering petrochemical resources from polymers, thermal decomposition of polyethylene under pressure in the presence of various gases and materials was examined and the liquid hydrocarbons were recovered. The results are summarized as follows: 1) The minimum temperature of decomposition liquefaction of polyethylene was dependent on the charged gases and decreased in the following order: CO2<CO<He<H2. 2) The degree and the method of polymerization of the specimens had little effect on the yield of normal paraffins from C_??_-C_??_ in the 250°C distillation fraction, 3) The use of sands (sea sand) and steel balls as added materials increased the low boiling point fraction in the liquid product.

Keywords

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