Journal of the Japan Institute of Energy
Online ISSN : 1882-6121
Print ISSN : 0916-8753
ISSN-L : 0916-8753
Material Recycling of Used Tires by Liquid-Phase Cracking
Yoshiki SATOSuminobu KURAHASHI
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1995 Volume 74 Issue 2 Pages 91-98

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Abstract

For material recycling of used tires, liquid- phase cracking of tires was studied using various kinds of solvent under H2 or N2 pressure. Experiments were carried out using a 200 ml autoclave with magnetic stirrer at 300-440°, initial H2 or N2 pressure of 2.0-8.5 MPa, reaction time of 20-60 min with solvent to tire weight ratio of 1-2.5. When hydrogen donating solvent such as tetralin was used for cracking, almost all organic matter could be converted to light oil with very low sulfur content of 0.5 wt% by the reaction under low nitrogen pressure. Reaction residue can also be reused as carbon black for rubber manufacturing.

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