Abstract
The thermal LDPE degradation mechanism harnessing a high-pressure autoclave surrounded by a furnace was investigated in this work. Rates of formation of gas, liquid, and solid during degradation of PE plastic wastes in cyclohexane as solvent at 400 and 425°C have been experimentally determined. Four reaction mechanisms have been proposed and tested to estimates of gas, liquid, and solid. Proposed mechanisms are based on the assumption that the reactions are pseudo-first-order with respect to the reacting species. Pseudo-first-order rate constants for each of the indicated mechanistic steps have been calculated by nonlinear regression analysis. The best fit was obtained by model 2 (pure parallel reaction mechanism), and its activation energy was determined.
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REFERENCES
C. Grignaschi (1988) Resources, Conservation and Recycling 2, 17-25.
T. R. Curlee (1989) J. Environmental Syst. 18, 193-212.
UNEP Industry and Environment (1994) Waste Recycling April–June, 32-36.
D. S. Scott, S. R. Czernik, J. Piskorz, and A. G. Radlein (1990) Energy & Fuels 4, 407-411.
D. S. Scott, P. Majerski, J. Piskorz, D. Radlein, and M. Barnickel (1999) The Can. J. Chem. Eng. 77, 1021-1027.
M. Blazso (1997) J. Anal. Appl. Pyrolysis 39, 1-25.
P. T. Williams and E. A. Williams (1999) J. Anal. Appl. Pyrolysis 51, 107-126.
F. Pinto, P. Costa, I. Gulyurtlu, and I. Cabrita (1999) J. Anal. Appl. Pyrolysis 51, 39-55.
C. M. Simon, W. Kaminsky, and B. Schlesselmann (1996) J. Anal. Appl. Pyrolysis 38, 75-87.
Y. Sakata, M. A. Uddin, and A. Muto (1999) J. Anal. Appl. Pyrolysis 51, 135-155.
J. K. Koo, S. W. Kim, and Y. H. Seo (1991) Resources, Conservation and Recycling 5, 365-382.
H. Bockorn, A. Hornung, U. Hornung, and D. Schawaller (1999) J. Anal. Appl. Pyrolysis 48, 93-109.
T. Faravelli, G. Bozzano, C. Scassa, M. Perego, S. Fabini, E. Ranzi, and M. Dente (1999) J. Anal. Appl. Pyrolysis 52, 87-103.
M. A. Shalabi, R. M. Baldwin, R. L. Bain, J. H. Gary, and J. O. Golden (1979) Ind. Eng. Chem. Process Des. Dev. 18, 474-479.
K. Ceylan and A. Olcay (1998) Fuel Proc. Tech. 53, 183-195.
T. Murakata, Y. Saito, T. Yosikawa, T. Suzuki, and S. Sato (1993) Polymer 34, 1436-1439.
SAS (1989) SAS Institute Inc., CArry N. C., U.S.A.
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Karaduman, A., Şimşek, E.H. Thermal Degradation Mechanism of Low-Density Polyethylene Plastic Wastes in Cyclohexane. Journal of Polymers and the Environment 9, 85–90 (2001). https://doi.org/10.1023/A:1020252806505
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DOI: https://doi.org/10.1023/A:1020252806505