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Modeling of the co-pyrolysis of rubber residual and HDPE waste using the distributed activation energy model (DAEM)

Ng, Q.H. and Chin, B.L.F. and Yusup, S. and Loy, A.C.M. and Chong, K.Y.Y. (2018) Modeling of the co-pyrolysis of rubber residual and HDPE waste using the distributed activation energy model (DAEM). Applied Thermal Engineering, 138 . pp. 336-345.

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Abstract

The kinetic analysis for rubber residual i.e. rubber seed shell, high density polyethylene (HDPE) waste and its mixture are investigated using distributed activation energy model (DAEM) reaction model. Furthermore, the pyrolysis characteristics from these materials are investigated by non-isothermal thermogravimetric analysis from temperature 323 K to 1173 K at varying heating rates range of 10�200 K/min in inert argon atmosphere. The average value determined for activation energy, Ea and pre-exponential factor, k0 are 54.888 kJ mol�1 and 6.923 � 104 s�1 respectively for RSS, 75.396 kJ mol�1 and 1.346 � 106 s�1 respectively for HDPE and 64.010 kJ mol�1 and 8.444 � 104 s�1 respectively for binary mixture of RSS/HDPE. By taking these values as the initial guess for Gaussian distribution, and assuming the standard deviation, � is at 15 kJ mol�1, as well as constant k0 value for all first order reactions, the mean activation energy, E0 determined from the distribution curve for RSS, HDPE and RSS/HDPE are 55.0 kJ mol�1, 75.5 kJ mol�1 and 64.0 kJ mol�1 respectively. The values of E0 and k0 in pyrolysis of binary mixture of RSS/HDPE are found to be lower compared to the individual component of RSS and HDPE in pyrolysis process. © 2018 Elsevier Ltd

Item Type:Article
Impact Factor:cited By 0
Uncontrolled Keywords:Activation analysis; Binary mixtures; Enzyme kinetics; High density polyethylenes; Pyrolysis; Rubber; Thermogravimetric analysis, Distributed activation energy model; Distribution curves; First order reactions; High density polyethylene(HDPE); Individual components; Preexponential factor; Pyrolysis characteristics; Thermo-gravimetric, Activation energy
ID Code:21484
Deposited By: Ahmad Suhairi
Deposited On:25 Sep 2018 06:31
Last Modified:25 Sep 2018 06:31

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