Pyrolysis kinetic study of homogenized waste plastic and date blend

Pyrolysis of high-density polyethelene and dried Dates blends are examined in this paper. There is abundance of HDPE and Dates waste available in Iran. Due to this factor, there are potentials to study these wastes in term of waste to energy conversion as feedstock in powerplants. In order to produce a quality fuel or feedstock by converting Dates and plastics waste through pyrolyzing, a proper analysing of the process kinetic parameters and the distribution of their activation energy (Ea) has been investigated. In this paper, three samples of HDPE and Dates blend with ratio of (1:3, 1:1 and 3:1) were utilized to study the thermal degradation of each blending sample using TGA analyser. Moreover, the (Ea) of HDPE and Dates blend was calculating using Friedman Method. The determined result for ratio of 1HDPE:3Dates is 60-67 kJ/mol, for 1HDPE:1Dates is 66-97 kJ/mol and for 3HDPE:1Dates is 131 kJ/mol. The higher ratio of plastic can increase the value of activation energy which require more energy for combustion in powerplant. Thus, the 1HDPE:3Dates is the best ratio which require lowest energy for combustion and by homogenizing the plastic with biomass we can increase the calorific value of the produce feedstock.