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Catalytic decomposition of HDPE over Al-MCM-48 using TGA and Py-GC/FID  

Kim, Young-Min (Dept. of Environmental System Engineering, Hallym Univ.)
Kim, Seung-Do (Dept. of Environmental System Engineering, Hallym Univ.)
Park, Young-Kwon (Faculty of Environmental Engineering, University of Seoul)
Kim, Ji-Man (Dept. of Chemistry, Sungkyunkwan University)
Jeon, Jong-Ki (Dept. of Chemical Engineering, Kongju University)
Publication Information
Resources Recycling / v.15, no.5, 2006 , pp. 17-25 More about this Journal
Abstract
Al-MCM-48 was used as a catalyst to decompose high density polyethylene(HDPE). Catalytic activity of Al-MCM-48 was compared with those of Al-MCM-41, Beta, and ZSM-5. Catalytic decomposition rate over Al-MCM-48 was much higher than at of non-catalytic pyrolysis only. Compared to other catalysts, Al-MCM-48 revealed the little higher activation energy value. The progressive deactivation behavior of the catalysts has also studied. ZSM-5 and Al-MCM-48 showed slower deactivation rates than Al-MCM-41 and Beta. Pyrolysis coupled with gas chromatographic separation and flame ionization detection (Py-GC/ FID) was also performed to assess the characteristics of pyrolysis products. ZSM-5 gave a higher fraction of gaseous products ($C_1-C_4$). Al-MCM-41 and Beta produced mainly $C_5-C_{12}$ products. The selectivity to oil product ($C_5-C_{22}$) obtained with Al- MCM-48 is higher an that with the other catalysts employed in this study.
Keywords
HDPE; Pyrolysis; Catalyst; deactivation; Al-MCM-48;
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1 박영권, 김주식, 최진희, 전종기, 김승도, 김승수, 김지만, 유경선, 2003: 플라스틱 촉매 열분해에 대한 고찰, 한국폐기물학회지, 20(6), pp.565-584
2 Park, D.W., Hwang, E.Y., Kim, J.R., Choi, J.K., Kim, Y.A. and Woo, H.C., 1999: Catalytic degradation of polyethylene over solid acid catalyst, Polymer Degradation and Stability, 65, pp.193-198   DOI   ScienceOn
3 Aguado, J., Serrano, D.P., Escola, J.M., Garagorri, E. and Fernandez, J.A., 2000: Catalytic conversion of polyethylenes into fuels over zeolite beta, Polymer Degradation and Stability, 69, pp.11-16   DOI   ScienceOn
4 Aguado, J., Serrano, D.P., Romero, M.D. and Escola, J.M., 1996: Catalytic conversion of polyethylene into fuels over mesoporous MCM-41, Chem. Commun., pp.725-726
5 Kim, J.M., Kwak, J.H., Jun, S. and Ryoo, R., 1995: Ion exchange and thermal stability of MCM-41, J. Phys. Chem., 99, pp.16742-16746   DOI   ScienceOn
6 Kim, S. and Park, J.K. 1995: Characterization of thermal reaction by peak temperature and height of DTG curves, Thermochimica Acta, 264, pp.137-156   DOI   ScienceOn
7 환경부 통계자료, 2001-2004: 전국 폐기물 발생 및 처리 현황
8 Ryoo, R., Jun, S., Kim, J.M. and Kim, M.J., 1997: Generalized route to the preparation of mesoporous metallosilicate via post-synthetic metal implantation, Chern. Commun., pp.2225-2226
9 Seddegi, Z. S., Budrthumal, U., A1-Arfaj, A. A., Al-Amer, A. M. and Barri, S. A. I, 2002: Catalytic cracking of polyethylene over all silica MCM-41 molecular sieve, Applied Catalysis A: General, 225, pp.167-176   DOI   ScienceOn
10 Bartholomew C.H., 2001: Mechanisms of catalyst deactivation, Applied Catalysis A: General, 212, pp.17-60   DOI   ScienceOn
11 Gobin, K. and Manos, G, 2004: Thermogravimetric study of polymer catalytic degradation over microporous materials, Polymer Degradation and Stability, 86, pp.225-231   DOI   ScienceOn
12 Lin, L.H., Yang, M.H., Yeh, T.F. and Ger. M.D., 2004: Catalytic degradation of high density polyethylene over mesoporous and microporous catalysts in a fluidsed-bed reactor, Polymer Degradation and Stability, 86, pp.121-128   DOI   ScienceOn
13 ASTM D 2887: Standard Test Method for Boiling Range Distribution of Petroleum Fractions by Gas Chromatography
14 김승도,2002: 저온열분해를 이용한 폐어망의 재활용 기술개발 산업, 해양수상부 보고서
15 Aguado, J., Sotelo, J.L., Serrano, D.P., Calles, J.A. and Escola, J.M., 1997: Catalytic conversion of polyolefins into liquid fuels over MCM-41: Comparison with ZSM-5 and amorphous $SiO_2-Al_2O_3$, Energy Fuels., 11, pp.1225   DOI   ScienceOn
16 장은석, 김승도, 김영민, Xingfan, 박영권, 옥곤, 2003: 활성탄 접촉 조건에서의 n-Tetrdecane의 열분해 반응특성에 대한 연구, 한국폐기물학회지, 20(4), pp.404-414
17 Marcilla, A.; Beltran, M.L, Hernandez, F. and Navarro, R., 2004: HZSM5 and HUSY deactivation during the catalytic pyrolysis of polyethylene, Applied Catalysis A: General, 278, pp.37-43   DOI   ScienceOn
18 Lin, Y.H., Hwu, W.H., Ger, M.D., Yeh, T.F and Dwyer J., 2001: A combined kinetic and mechanistic modelling of the catalytic degradation, of polymers, Journal of Molecular Catalysis A: Chemical, 171, pp.143-151   DOI   ScienceOn