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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Bioresource Technolo...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Bioresource Technology
Article . 2010 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Non-isothermal pyrolysis characteristics of giant sensitive plants using thermogravimetric analysis

Authors: orcid Nakorn Tippayawong;
Nakorn Tippayawong
ORCID
Harvested from ORCID Public Data File

Nakorn Tippayawong in OpenAIRE
orcid Thanasit Wongsiriamnuay;
Thanasit Wongsiriamnuay
ORCID
Harvested from ORCID Public Data File

Thanasit Wongsiriamnuay in OpenAIRE

Non-isothermal pyrolysis characteristics of giant sensitive plants using thermogravimetric analysis

Abstract

A giant sensitive plant (Mimosa pigra L.) or Mimosa is a fast growing woody weed that poses a major environmental problem in agricultural and wet land areas. It may have potential to be used as a renewable energy source. In this work, thermal behaviour of dried Mimosa was investigated under inert atmosphere in a thermogravimetric analyzer at the heating rates of 10, 30, and 50 degrees C/min from room temperature to 1000 degrees C. Pyrolysis kinetic parameters in terms of apparent activation energy and pre-exponential factor were determined. Two stages of major mass loss occurred during the thermal decomposition process, corresponding to degradation of cellulose and hemicellulose between 200-375 degrees C and decomposition of lignin around 375-700 degrees C. The weed mainly devolatilized around 200-400 degrees C, with total volatile yield of about 60%. The char in final residue was about 20%. Mass loss and mass loss rates were strongly affected by heating rate. It was found that an increase in heating rate resulted in a shift of thermograms to higher temperatures. As the heating rates increased, average devolatilization rates were observed to increase while the activation energy decreased.

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Keywords

Hot Temperature, Mimosa, Temperature, Agriculture, Environment, Lignin, Oxygen, Kinetics, Polysaccharides, Thermogravimetry, Solvents, Biomass, Volatilization, Cellulose

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