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Thermolysis of Scrap Tire Using Supercritical Toluene
1Laboratory of Thermodynamics & Supercritical Fluid Engineering, Department of Chemical Engineering, Sogang University, Seoul, Korea 2Department of Chemical Engineering, Hanyang University, Ansan, Korea
Korean Journal of Chemical Engineering, September 1999, 16(5), 602-607(6), 10.1007/BF02708138
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Abstract
With toluene in the supercritical state, scrap tire was decomposed into low molecular weight hydrocarbon liquid and solid residual. The experiment was carried out at 523.15, 573.15 and 623.15 K and pressures of 5, 10, and 15 MPa. The liquid and solid residual products were further separated by a simple filtering method. The reaction time, tire weight and the amount of the solvent were determined for the optimal thermolysis. The decomposition percent and TGA were used to evaluate the decomposition characteristics in terms of temperature and pressure. The GC-MS was applied to the decomposed liquid products from the various conditions. The average molecular weight of the decomposed liquid products tended to become lower with the increasing temperature.
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References
Crane G, Kay EL, Rubber Chem. Technol., 48, 50 (1975)
Crane G, Elefritz RA, Kay EL, Laman JR, Rubber Chem. Technol., 51, 577 (1978)
Dhawan JC, Bencsath AF, Legendre RC, "Depolymerization Reactions of Cis-polyisoprene and Scrap Rubber in Supercritical Toluene," Supercritical Fluid Science and Technology, American Chemical Society, Washington, D.C., 380 (1993)
Dhawan JC, Legendre RC, Bencsath AF, Davis RM, J. Supercrit. Fluids, 4, 160 (1991)
Funazukuri T, Takanashi T, Wakao N, J. Chem. Eng. Jpn., 20, 23 (1987)
Lee SB, Hong IK, J. Ind. Eng. Chem., 4(1), 26 (1998)
Lee S, Azzam FO, Kocher BS, U.S. Patent, 5,516,952 (1996)
McHugh MA, Krukonis VJ, "Supercritical Fluid Extraction Principles and Practice," Butterworth-Heinemann, Stoneham, MA, 311 (1994)
Modell M, U.S. Patent, 4,338,199 (1982)
Park S, Gloyna EF, Fuel, 76(11), 999 (1997)
Sako T, Sugeta T, Otake K, Nakazawa N, Namiki K, Tsugumi M, Sato M, "Depolymerization of Polyethylene Terephthalate to Monomers with Supercritical Methanol," The 4th International Symposium on Supercritical Fluids, A, 107 (1997)
Sahouli B, Blacher S, Brouers F, Darmstadt H, Roy C, Kaliaguine S, Fuel, 75, 1244 (1996)
Warner WC, Rubber Chem. Technol., 67, 559 (1994)
Crane G, Elefritz RA, Kay EL, Laman JR, Rubber Chem. Technol., 51, 577 (1978)
Dhawan JC, Bencsath AF, Legendre RC, "Depolymerization Reactions of Cis-polyisoprene and Scrap Rubber in Supercritical Toluene," Supercritical Fluid Science and Technology, American Chemical Society, Washington, D.C., 380 (1993)
Dhawan JC, Legendre RC, Bencsath AF, Davis RM, J. Supercrit. Fluids, 4, 160 (1991)
Funazukuri T, Takanashi T, Wakao N, J. Chem. Eng. Jpn., 20, 23 (1987)
Lee SB, Hong IK, J. Ind. Eng. Chem., 4(1), 26 (1998)
Lee S, Azzam FO, Kocher BS, U.S. Patent, 5,516,952 (1996)
McHugh MA, Krukonis VJ, "Supercritical Fluid Extraction Principles and Practice," Butterworth-Heinemann, Stoneham, MA, 311 (1994)
Modell M, U.S. Patent, 4,338,199 (1982)
Park S, Gloyna EF, Fuel, 76(11), 999 (1997)
Sako T, Sugeta T, Otake K, Nakazawa N, Namiki K, Tsugumi M, Sato M, "Depolymerization of Polyethylene Terephthalate to Monomers with Supercritical Methanol," The 4th International Symposium on Supercritical Fluids, A, 107 (1997)
Sahouli B, Blacher S, Brouers F, Darmstadt H, Roy C, Kaliaguine S, Fuel, 75, 1244 (1996)
Warner WC, Rubber Chem. Technol., 67, 559 (1994)
