Journal of Biofuels
  • Year: 2013
  • Volume: 4
  • Issue: 2

Kinetics Studies on the Catalytic Thermal Degradation of High Density Polyehylene

1Research Scholar, Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, Haryana, India

2Professor, Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, Haryana, India

3Professor, Department of Applied Chemistry and Polymer Technology, Delhi Technological University, Delhi, India

*Corresponding author email id: vandana1582@gmail.com

Abstract

Thermogravimetric analysis of high density polyethylene and Co3+ catalyst mixtures was studied under non-isothermal conditions. The mixtures used in this study consist of blends ofHDPE: Co3+ in 3:1 and 5:1 ratios. The pyrolysis was carried out over a temperature range of 30 to 800 0C in an inert atmosphere of nitrogen, with a heating rate of 100C/min. The kinetic parameters were evaluated using the Coats and Redfern method. The activation energy of raw HDPE was decreased by Co3+ catalyst by nearly 80% within the given temperature ranges. A reduction in the activation energy of the blended mixture was observed, which clearly indicates the synergism in the co-cracking/co-processing reactions. The reaction is defined as zero order reaction. The catalyst chosen for pyrolysis shows effective aspects on HDPE degradation.

Keywords

Degradation, Catalyst, HDPE, Kinetics, Non-isothermal