Optimisation of physical activation process for activated carbon production from tyre wastes
by Zakaria Loloei; Mansooreh Soleimani; Mehrdad Mozaffarian
International Journal of Global Warming (IJGW), Vol. 11, No. 3, 2017

Abstract: The reuse of waste tyres is of great importance due to problems and damages that they pose to the environment. This paper presents the work conducted in order to study the conversion of waste tyres to activated carbon. Activated carbon was prepared by two step process: 1-pyrolysis under nitrogen and activation with carbon dioxide. Experiments have been conducted based on Taguchi experimental design method with orthogonal arrays (L16). Pyrolysis temperature, pyrolysis holding time, activation temperature, activation holding time, process heating rate and activating CO₂ gas flow rate were optimised as operating parameters. The effect of these operating parameters on the yield and iodine number as two main results of this process has been investigated. Experimental results and analysis of variance (ANOVA) showed that activation temperature and activation holding time are the most effective variables, respectively. Optimum conditions for both yield and iodine number have been found which provided 33.22% for yield and 439.86 (mg I₂/gr of activated carbon) for iodine number.

Online publication date: Sun, 12-Mar-2017

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