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Effect of Aluminium Addition to MCM-41 on Catalytic Cracking of an LDPE-LLDPE-EVA Copolymer Mixture  

Kim, Min Ji (Department of Chemical Engineering, Kongju National University)
Jeon, Jong-Ki (Department of Chemical Engineering, Kongju National University)
Park, Young-Kwon (Faculty of Environmental Engineering, University of Seoul)
Ko, Young Soo (Department of Chemical Engineering, Kongju National University)
Sohn, Jung Min (Department of Mineral Resources & Energy Engineering, Chonbuk National University)
Publication Information
Korean Chemical Engineering Research / v.45, no.2, 2007 , pp. 117-123 More about this Journal
Abstract
The effect of aluminium addition to MCM-41 on product yield and carbon number distribution was investigated in the catalytic cracking of a polymer mixture, LDPE, LLDPE, and EVA copolymer, with a composition similar to that found in real agricultural film wastes. Al-MCM-41 catalyst synthesized by post-synthetic grafting method (Al-MCM-41-P) as well as Al-MCM-41 catalyst synthesized by direct sol-gel (Al-MCM-41-D). The catalytic cracking of polymer mixture was carried out in vapor phase contact as well as in liquid phase contact. The amount of acid sites increased with aluminium addition by post method as well as direct method, which was seemed to be due to Lewis acid sites. In liquid phase catalytic cracking, the yield of light hydrocarbon fraction increased with aluminium addition. The effect of aluminium addition on production of $C_5-C_{12}$ hydrocarbons over Al-MCM-41-P catalysts was greater than that over Al-MCM-41-D catalysts. In the case of vapor phase catalytic cracking, the effect of aluminium addition was smaller than that of liquid phase catalytic cracking. The selectivity to $C_{13}-C_{32}$ hydrocarbons was smaller in vapor phase catalytic cracking.
Keywords
LDPE; LLDPE; EVA Copolymer; Cracking; MCM-41;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Kim, J. H. and Niwa, M., 'Synthesis and Solid Acidic Property of MCM-41 Mesoporous Material,' J. Res. Inst. Catal., 18(1), 45-53 (2003)
2 Kim, S. S. and Kim, S., 'Pyrolysis Characteristics of Polystyrene and Polypropylene in a Stirred Batch Reactor,' Chem. Eng. J., 98(1-2), 53-60(2003)   DOI   ScienceOn
3 Kim, J. M., Ko, C. H. and Ryoo, R., 'Catalytic Activities of Mesopores Molecular Sieve, MCM-41 : Hydrogenolysis and Partial Oxidation, ' Appl. Chem. Eng., 2(1), 1137-1140 (1996)
4 Sharratt, P. N., Lin, Y. H., Garforth, A. A. and Dwyer, J., 'Investigation of the Catalytic Pyrolysis of High-Density Polyethylene over a HZSM-5 Catalyst in a Laboratory Fluidized-Bed Reactor,' Ind. Eng. Chem. Res., 36(12), 5118-5124(1997)   DOI   ScienceOn
5 Park, H. J., Jeon, J. K., Yim, J. H., Dong, J. I., Yoo, K. S. and Park, Y. K., 'Catalytic Degradation of Polyethylene by Al-MCM-4,' J. Ind. Eng. Chem., in press (2007)
6 Takuma, K., Uemichi, Y. and Ayame, A., 'Product Distribution From Catalytic Degradation of Polyethylene over H-gallosilicate,' Appl. Catal. A: General, 192(2), 273-280(2000)   DOI   ScienceOn
7 Park, Y. K., Kim, J. S., Jeon, J. K., Lim, J. E., Kim, J. M. and Yoo, K. S., 'A Kinetic Study of Catalytic Degradation of Linear Low Density Polyethylene By MCM-41 Preparation Method,' Polymer(Korea), 29(2), 122-126(2005)
8 Chakraborty, B. and Viswanathan, B., 'Surface Acidity of MCM-41 by in situ IR Studies of Pyridine Adsorption,' Catal. Today, 49(1-3), 253-260(1999)   DOI   ScienceOn
9 Lee, S. H., Lee, D. K. and Park, S. G., 'Synthesis and Characterization of MCM-41 Type Aluminosilicates', 2003 Annual Summer Conference, The Korean Institute of Electrical and Electronic Material Engineers, 1231-1234(2003)
10 Vitolo, S., Bresci, B., Seggiani, M. and Gallo, M. G., 'Catalytic Upgrading of Pyrolytic Oils over HZSM-5 Zeolite: Behaviour of the Catalyst When Used in Repeated Upgrading-regenerating Cycles,' Fuel, 80(1), 17-26(2001)   DOI   ScienceOn
11 Chon, H. and Seo, G., Int. Catal., 4th ed., Hanrimwon Publishing Co., Seoul(2002)
12 Song,, S. K., Wang, Y. and Ihm, S. K., 'Effect of Lanthanum Addition on the Thiophene Hydrodesulfurization Activity over Al-MCM-41 Supported Molybdenum Catalysts', Catal. Today, 111(3-4), 194-198(2006)   DOI
13 Faravelli, T., Pinciroli, M., Pisanol, F., Bozzano, G., Dente, M. and Ranzi, E., 'Thermal Degradation of Polystyrene,' J. Anal. Appl. Pyrolysis, 60(1), 103-121(2001)   DOI   ScienceOn
14 Park, Y. K., MS Thesis, KAIST(1994)
15 Dao, L. H., Haniff, M., Houle, A. and Lamothe, D., In: Soltes and T. A. Milne (Eds), Pyrolysis Oils from Biomass: Producing, Analyzing and Upgrading, ACS Symposium Series 376, Washington DC, 329-341(1998)