TY - JOUR
T1 - Pyrolysis gases produced from individual and mixed PE, PP, PS, PVC, and PET—Part I
T2 - Production and physical properties
AU - Honus, Stanislav
AU - Kumagai, Shogo
AU - Fedorko, Gabriel
AU - Molnár, Vieroslav
AU - Yoshioka, Toshiaki
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/6/1
Y1 - 2018/6/1
N2 - This article describes the production and properties of gases produced by the pyrolyses of poly(ethylene terephthalate) (PET), polypropylene (PP), polyethylene (PE), poly(vinyl chloride) (PVC), and polystyrene (PS), and three of their mixtures at process temperatures of 500, 700, and 900 °C. The overall aim was to characterize all 24 gases in terms of their production and physical properties, and compare the data obtained to those of traditional fuels, namely natural gas (NG) and propane. In addition to experimental and analytical approaches for determining quantities and compositions of the pyrolysis products, various mathematical methods and their combinations were also used to determine product properties. The highest conversion of material into gas occurred during the pyrolysis of PP at 900 °C (66.88 wt% conversion into gaseous products). The pyrolyses of PE and PP at 500 °C were found to generate pyrolysis gases with the highest energy, with gross calorific values of 86.58 and 81.09 MJ m−3N, respectively. The highest chemical energy yield was obtained by the pyrolysis of PP at 900 °C. Gases produced from PVC had a high thermal conductivity of about 104.83 mW m−1 K−1. The gas generated from PP at 500 °C exhibited a high specific heat of 2.94 kJ m−3N K−1, and that obtained from PS at 500 °C had a very low kinematic viscosity (5.28 10−6 m2 s−1) and thermal diffusivity (7.90 10−6 m2 s−1). Even though numerous reports have dealt with pyrolysis gases, there is still not sufficient information about the specific physical properties of these gases. This article attempts to fill this gap and induce scientific interest in this field.
AB - This article describes the production and properties of gases produced by the pyrolyses of poly(ethylene terephthalate) (PET), polypropylene (PP), polyethylene (PE), poly(vinyl chloride) (PVC), and polystyrene (PS), and three of their mixtures at process temperatures of 500, 700, and 900 °C. The overall aim was to characterize all 24 gases in terms of their production and physical properties, and compare the data obtained to those of traditional fuels, namely natural gas (NG) and propane. In addition to experimental and analytical approaches for determining quantities and compositions of the pyrolysis products, various mathematical methods and their combinations were also used to determine product properties. The highest conversion of material into gas occurred during the pyrolysis of PP at 900 °C (66.88 wt% conversion into gaseous products). The pyrolyses of PE and PP at 500 °C were found to generate pyrolysis gases with the highest energy, with gross calorific values of 86.58 and 81.09 MJ m−3N, respectively. The highest chemical energy yield was obtained by the pyrolysis of PP at 900 °C. Gases produced from PVC had a high thermal conductivity of about 104.83 mW m−1 K−1. The gas generated from PP at 500 °C exhibited a high specific heat of 2.94 kJ m−3N K−1, and that obtained from PS at 500 °C had a very low kinematic viscosity (5.28 10−6 m2 s−1) and thermal diffusivity (7.90 10−6 m2 s−1). Even though numerous reports have dealt with pyrolysis gases, there is still not sufficient information about the specific physical properties of these gases. This article attempts to fill this gap and induce scientific interest in this field.
KW - Natural gas
KW - Physical properties
KW - Polymers
KW - Pyrolysis
KW - Waste plastic
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U2 - 10.1016/j.fuel.2018.02.074
DO - 10.1016/j.fuel.2018.02.074
M3 - Article
AN - SCOPUS:85042400494
VL - 221
SP - 346
EP - 360
JO - Fuel
JF - Fuel
SN - 0016-2361
ER -