자동차용 플라스틱 HCPP(High Crystalline Polypropylene)의 열분해 특성 연구: PA(Polyamide) 및 ABS(Acrylonitrile Butadiene Styrene)의 혼합에 따른 오일 내 질소 함량에 대한 영향
A Study on Properties of Automotive Plastics HCPP (High Crystalline Polypropylene): The Influence of PA (Polyamide) and ABS (Acrylonitrile Butadiene Styrene) Addition on the Nitrogen Content in Oil
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In this study, we investigated the properties of the pyrolysis products of highly crystalline polypropylene, a commonly used automotive material, and mixed plastics containing polyamide (PA) and acrylonitrile butadiene styrene (ABS). All the pyrolysis experiments were performed using a fixed-bed pyrolysis system designed for controlled temperature conditions. The components and heteroatom contents of the oils were analyzed using gas chromatography-mass spectrometry and elemental analysis. Based on the elemental analysis, calibration curves for the nitrogen content in oils were plotted, and guidelines for using steam-cracking criteria were proposed. The ratios of PA and ABS satisfied the steam-cracking criteria when the PA and ABS contents were 2 wt.% or less and 0.5 wt.% or less, respectively. Through elemental analysis using Dulong’s formula, we also calculated the higher heating value of the pyrolysis oils. Based on these findings, the potential use of mixed pyrolysis oils in petrochemical processes was explored.
Abstract
In this study, we investigated the properties of the pyrolysis products of highly crystalline polypropylene, a commonly used automotive material, and mixed plastics containing polyamide (PA) and acrylonitrile butadiene styrene (ABS). All the pyrolysis experiments were performed using a fixed-bed pyrolysis system designed for controlled temperature conditions. The components and heteroatom contents of the oils were analyzed using gas chromatography-mass spectrometry and elemental analysis. Based on the elemental analysis, calibration curves for the nitrogen content in oils were plotted, and guidelines for using steam-cracking criteria were proposed. The ratios of PA and ABS satisfied the steam-cracking criteria when the PA and ABS contents were 2 wt.% or less and 0.5 wt.% or less, respectively. Through elemental analysis using Dulong’s formula, we also calculated the higher heating value of the pyrolysis oils. Based on these findings, the potential use of mixed pyrolysis oils in petrochemical processes was explored.