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Effect of MCM-41 Preparation Methods on the Kinetics of Catalytic Pyrolysis of Linear Low Density Polyethylene  

Park Young-Kwon (Faculty of Environ, Eng., University of Seoul)
Kim Joo-Sik (Faculty of Environ, Eng., University of Seoul)
Jeon Jong-Ki (Department of Chemical Engineering, Kongju National University)
Lim Jung Eun (Department of Molecular Science & Technology, Ajou University)
Kim Ji Man (Department of Chemistry, Sungkyunkwan University)
Yoo Kyung-Seun (Department of Environmental Engineering, Kwangwoon University)
Publication Information
Polymer(Korea) / v.29, no.2, 2005 , pp. 122-126 More about this Journal
Abstract
The effect of Al-MCM-41 preparation methods on the catalytic degradation of linear low density polyethylene (LLDPE) was investigated. Al-MCM-41 catalysts were synthesized by direct method (Al-MCM-41-D) and post treatment method (Al-MCM-41-P) and their characteristics were elucidated by XRD, BET, $NH_3\;TPD,\;^{27}Al$ MAS NMR. TGA kinetic analysis showed that the catalytic activation energies of Al-MCM-41-D and Al-MCM-41-P were 191.54 and 114.26 kJ/mol, respectively. The higher catalytic activity of Al-MCM-41-P would be attributed to its smaller pore size as well as higher number of acid sites that are accessible.
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