Catalytic Pyrolysis of PET Polymer Using Nonisothermal Thermogravimetric Analysis Data: Kinetics and Artificial Neural Networks Studies.

ABSTRACT: This paper presents the catalytic pyrolysis of a constant-composition mixture of zeolite β and polyethylene terephthalate (PET) polymer by thermogravimetric analysis (TGA) at different heating rates (2, 5, 10, and 20 K/min). The thermograms showed only one main reaction and shifted to higher temperatures with increasing heating rate. In addition, at constant heating rate, they moved to lower temperatures of pure PET pyrolysis when a catalyst was added. Four isoconversional models, namely, Kissinger-Akahira-Sunose (KAS), Friedman, Flynn-Wall-Qzawa (FWO), and Starink, were applied to obtain the activation energy (E_a). Values of E_a acquired by these models were very close to each other with average value of E_a = 154.0 kJ/mol, which was muc

SUBMITTER: Dubdub I 

PROVIDER: S-EPMC9824759 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature