Open AccessThermogravimetric kinetics of catalytic and non-catalytic pyrolytic conversion of palm kernel shell with acid treated coal bottom ash
Author(s) -
David Onoja Patrick,
Suzana Yusup,
Noridah Osman,
Haslinda Zabiri,
Yoshimitsu Uemura,
Muhammad Shahbaz
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/736/4/042029
Subject(s) - activation energy , thermogravimetric analysis , pyrolytic carbon , catalysis , kinetics , palm kernel , chemistry , pyrolysis , kinetic energy , materials science , nuclear chemistry , chemical engineering , organic chemistry , palm oil , physics , food science , quantum mechanics , engineering
The catalytic and non-catalytic pyrolytic conversion kinetics of palm kernel shell with untreated (as received) and H 2 SO 4 treated coal bottom ash as catalyst were investigated in this study. The activation energy was determined using Flynn-Wall-Ozawa (FWO) kinetic model and distributed activation energy model (DEAM) isoconversional kinetic models. The study was conducted using thermogravimetric analysis at 10, 20, 30 and 50 °C/min heating rates. The activation energy (E a ) ranged from 145.7-228.3 kJ/mol and 142.1-274.2 kJ/mol for FWO and DEAM, respectively. The use of acid treated ash reduced the activation energy compared to the non-catalytic process while the untreated ash increased the activation energy.