Paper details

Title:

Application of Different Kinetic Methods to the Thermogravimetric Analysis of Kenaf (Hibiscus Cannabinus)

Author(s):

González, J.F., Encinar, J.M., Román, S., Rayo, M.C.

Document(s):

Abstract:

The objective of this work was to investigate the thermal decomposition process of kenaf (Hibiscus cannabinus) and to determine their activation energy values associated through a dynamic thermogravimetric analysis by model-free methods. The pyrolysis of kenaf has been carried out by means of thermogravimetric analysis in Ar atmosphere. Four heating rates were used (5-10-20-40 K min-1) up to a final temperature of 700 ºC. The activation energy values were calculated as a function of the extent of conversion during the pyrolysis process by means of Friedman, Kissinger­Akahira-Sunose and Flynn–Wall–Ozawa isoconversional methods. The results showed that there are small differences between the activation energy values obtained from the three methods. Also, a relationship between the activation energy and the conversion reached was found.

Keywords:

biomass, pyrolysis, model-free methods, Kenaf

Topic:

Thermochemical conversion - Pyrolysis for power, CHP, polygeneration and chemicals

Subtopic:

Pyrolysis for power, CHP, polygeneration and chemicals

Event:

18th European Biomass Conference and Exhibition

Session:

VP2.3.16

Pages:

997 - 1000

ISBN-13:

978-88-89407-56-1

ISBN-10:

88-89407-56-5

Paper DOI:

10.5071/18thEUBCE2010-VP2.3.16

Price:

FREE