Thermal and catalytic degradation study of polyethylene and investigation the catalytic effect of X-Zeolite and Silica-Alumina on degradation kinetic
Subject Areas : Journal of the Iranian Chemical ResearchMohammad Taghi Taghizadeh 1 , Parinaz Seifi-Aghjekohal 2 , Ali Bahadori, 3 , Banafsheh Zeraatkar 4
1 - Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
2 - Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
3 - Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
4 - Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
Keywords: Thermal degradation, Polyethylene, X-Zeolite, Silica-Alumina, Activation energies,
Abstract :
The thermal degradation of polyethylene (PE) was carried out in the absence and presence ofcatalystes X-Zeolite and Silica-Alumina at different temperatures. The optimum PE/Catalysisratio was 0.25:0.05 g/g, which produced highest degradation value. PE and PE/Catalysis werecharacterized by thermogravimetric analysis. The thermal degradation properties of polymerhave been studied by Infrared spectroscopy–FT-IR. Experimental data indicated that thepresence of catalysis greatly increased the rate of degradation of PE. The activation energy ofdegradation for pure polyethylene and polyethylene in presence catalysises was calculated byArrhenius equation and Ozawa method. Activation energy follows the order PE < PE/Silica-Alumina < PE/X-Zeolite.
[1] R. Chandra, R. Rustgi, Prog. Polym. Sci. 23 (1998) 1273-1335.
[2] R.W.J. Westerhout, J. Waanders, J.A.M. Kuipers, W.P.M. van Swaaij, Ind. Eng. Chem. Res. 36
(1997) 1955-1964.
[3] H. Bockhorn, A. Hornung, U. Hornung, D. Schawaller, J. Anal. Appl. Pyrolysis. 48 (1999) 93-109.
[4] H. Bockhorn, A. Hornung, U. Hornung, J. Anal. Appl. Pyrolysis. 50 (1999) 77-101.
[5] C.H. Wu, C.Y. Chang, J.L. Hor, S.M. Shih, L.W. Chen, F.W. Chang, Waste Management. 13 (1993)
221-235.
[6] G. Manos, A. Garforth, J. Dwyer, Ind. Eng. Chem. Res. 39 (2000) 1203-1208.
[7] G. Manos, A. Garforth, J. Dwyer, Ind. Eng. Chem. Res. 39 (2000) 1198-1202.
[8] G. Manos, Y.I. Yusof, N. Papayannakos, H.N. Gangas, Ind. Eng. Chem. Res. 40 (2001) 2220-2225.
[9] G. Manos, Y.I. Yusof, N. Papayannakos, H.N. Gangas, Energy Fuels. 16 (2002) 485-489.
[10] K. Gobin, G. Manos, Polym. Degrad. Stab. 83 (2004) 267-279.
[11] D.W. Park, E.Y. Hwang, J.R. Kim, J.K. Choi, Y.A. Kim, H.C Woo. Polym. Degrad. Stab. 65 (1999)
193-198.
[12] J.M. Arandes, J. Erena, M.J. Azkoiti, D. Lopez-Valerio, J. Bilbao, Fuel Processing Technology. 85
(2004) 125-140.
[13] H. Ohkita, R. Nishiyama, Y. Tochihara, T. Mizushima, N. Kakuta, Y. Morioka, A. Ueno, Y. Namiki,
S. Tanifuji, H. Katoh, H. Sunazyka, R. Nakayama, T. Kuroyanagi, Ind. Eng. Chem. Res. 32 (1993)
3112-3116.
[14] A.R. Songip, T. Masuda, H. Kuwahara, K. Hashimoto, Applied. Catalysis B Environmental. 2 (1993)
153-164.
[15] J. Arguado, J.L. Sotelo, D.P. Serrano, J.A. Calles, J.M. Escola, Energy Fuels. 11 (1997) 1225-1231.
[16] R.C. Mordi. R. Field, J. Dwyer, J. Anal. Appl. Pyrolysis. 29 (1994) 45-55.
[17] W.C. McCaffrey, M.R. Kamal, D.G. Cooper. Polym. Degrad. Stab. 47 (1995) 133-139.
[18] K.Gobin, G. Manos. Polym. Degrad. Stab. 86 (2004) 225-231.
[19] G.J.T. Fernandes, V.J. Fernandes, Jr., A.S. Araujo. Catalysis Today 75 (2002) 233-238.
[20] L. B. Pierella, S. Renzini, O.A. Anunziata, Microporous and Mesoporous Materials 81 (2005) 155-
159.
[21] J.I. Won Park, J.H. Kim, G. Seo, Polym Degrad Stab. 76 (2002) 495-501.
[22] I.C. Neves, G. Botelho, A.V. Machadob, P. Rebelo. Materials Chemistry and Physics 104 (2007) 5-
9.
[23] K. Gobin, G. Manos. Polym. Degrad. Stab. 83 (2004) 267-279.
[24] A. Durmuş, S. Naci Koç, G. Selda Pozan, A. Kaşgöz, Applied Catalysis B: Environmental. 61
(2005) 316-322.
[25] C. D. Doyle, J. Appl. Polym. Sci. 6 (1962) 639-642.
M.T. Taghizadeh et al. / J. Iran. Chem. Res. 2 (2009) 195-210
210
[26] A. Marcilla, R. Ruiz-Femenia, J. Hernandes, J. Anal. Appl. Pyrolysis. 76 (2006) 254-259.