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03-02-2016 | ORIGINAL ARTICLE | Issue 2/2017

Journal of Material Cycles and Waste Management 2/2017

Tar and soot generation behaviors from ABS, PC and PE pyrolysis

Journal:
Journal of Material Cycles and Waste Management > Issue 2/2017
Authors:
Ivan Nedjalkov, Ryo Yoshiie, Yasuaki Ueki, Ichiro Naruse

Abstract

In this study we performed a non-isothermal thermogravimetric analysis on three thermoplastics—ABS, PC and PE. The Coats and Redfern method (Nature 201:68–69, 1964) was then used to approximate the kinetic parameters of each material. In addition, we performed a series of pyrolysis experiments in a batch reactor, for each plastic. The experiments were performed over the temperature range of 600–1000 °C at a constant residence time. The liquid and solid products of the pyrolysis, were collected, separated and weighted. Those products were categorized as soot, tar and char (PC only), and their relative weight to initial sample weight (DAF) was plotted against the temperature. The tar measured was exclusively medium to high molecular weight (>80 g/mol). Results revealed that relative tar and soot production, for all three materials, first increases and then decreases with temperature increase. The maximum achieved tar yields for ABS, PC and PE were at 700, 650 and 800 °C, respectively; and the maximum soot yields were at 1000, 1000, 950 °C, respectively.

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