Details

Title:

Thermal Degradation Kinetics of Tobacco Farm Waste

Author(s):

Polat, S., Apaydin-Varol, E., Putun, A.E.

Document(s):

Abstract:

In present study, thermal degradation kinetics of tobacco farm waste was examined by means of a thermogravimetric analysis (TGA) and its corresponding derivative thermogravimetric analysis (DTG) under nitrogen atmosphere at different heating rates of 5, 10, 15 and 20 °C /min from 25 °C to 1000°C. The TGA curve indicated that the pyrolysis process of tobacco included three stages and main pyrolysis occurred in the second stage. Hemicellulose, cellulose and lignin degradation occurred during pyrolysis in a temperature range between 165 - 570°C. The kinetic parameters, such as activation energy, pre­exponential factor and reaction order were determined by applying the Coats­Redfern (CR) method. Also, the activation energy was calculated using various degradation models including Kissinger, Friedman (FR), Flynn­Wall­Ozawa (FWO) and Kissinger­Akahira­Sunose (KAS). The average activation energy of tobacco was calculated to be 150.40, 230.76, 216.97 and 218.56 kJ/mol by Kissinger, FR, FWO and KAS models respectively.

Keywords:

agricultural residues, kinetics, pyrolysis, thermochemical conversion

Topic:

R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals

Subtopic:

Pyrolysis and other biomass liquefaction technologies

Event:

21st European Biomass Conference and Exhibition

Session:

2CV.4.29

Pages:

962 - 967

ISBN:

978-88-89407-53-0

Paper DOI:

10.5071/21stEUBCE2013-2CV.4.29

Price:

FREE