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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2118
Title: Analysis of thermal behavior and pyrolytic characteristics of vetiver grass after phytoremediation through thermogravimetric analysis
Authors: Thakur L.S.
Varma A.K.
Mondal, Prasenjit
Published in: Journal of Thermal Analysis and Calorimetry
Abstract: In this work, pyrolysis experiments of vetiver grass (Vetiveria zizanioides) after phytoremediation of arsenic, fluoride and manganese were carried out in a thermogravimetric analyzer under inert atmosphere at three heating rates of 5, 10 and 20 °C min?1 in order to investigate the thermal degradation behavior of vetiver grass. The physicochemical properties of vetiver grass were investigated by proximate and ultimate analysis, lignocellulosic composition, Bomb calorimetry and FTIR spectroscopy. The results showed that vetiver grass has high volatile matter content and high calorific value. Kinetic parameters for pyrolysis of vetiver grass were evaluated using three different kinetic models suggested by Kissinger–Akahira–Sunose (KAS), Ozawa–Flynn–Wall (OFW) and Coasts–Redfern using TGA data. The average activation energy values of vetiver grass calculated by using KAS and OFW models are found as 151.23 and 161.33 kJ mol?1, respectively. Coasts-Redfern model has been used to compute the pre-exponential factor. The physicochemical properties and kinetic parameters verify the suitability of vetiver grass as a potential feedstock for pyrolysis. © 2017, Akadémiai Kiadó, Budapest, Hungary.
Citation: Journal of Thermal Analysis and Calorimetry (2018), 131(3): 3053-3064
URI: https://doi.org/10.1007/s10973-017-6788-0
http://repository.iitr.ac.in/handle/123456789/2118
Issue Date: 2018
Publisher: Springer Netherlands
Keywords: Biomass
Kinetic
Pyrolysis
Thermogravimetric analysis
Vetiver grass
ISSN: 13886150
Author Scopus IDs: 56514970500
57196232507
57200197409
Author Affiliations: Thakur, L.S., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Varma, A.K., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Mondal, P., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Corresponding Author: Mondal, P.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia; email: pmpndal.iitr@gmail.com
Appears in Collections:Journal Publications [CH]

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