Biopolymeric transitions under pyrolytic thermal degradation of Pigeon pea stalk

Parmanand Sahu, Sandip Gangil and Vinod Kumar Bhargav

Renewable Energy, 2023, vol. 206, issue C, 157-167

Abstract: In this article, thermogravimetric analysis (TGA) is used to explore biopolymeric transitions in Pigeon pea stalks (PPS) at various heating rates (10, 20, 30 and 40 °C/min). The appeared transitions of TG-signals were analyzed in depth and discussed critically in terms of biopolymeric changes occurring within the major bioconstituents of PPS due to the influence of different heating rates. The intersection points of the deconvoluted conversion rate spectrum were taken as the stage transition points from one biopolymeric region to another. The stage transition points for hemicellulose to cellulose were at 328 °C and from cellulose to lignin at 356 °C, respectively, at a heating rate of 10 °C/min. This article is presenting the stage transition points first time and highlights the procedure of obtaining them using the conversion rate spectrum. The kinetics of individual bioconstituents of the PPS was also thoroughly investigated. The average activation energy was highest for hemicellulose 283–287 kJ/mol, followed by cellulose (134–137 kJ/mol) and lignin (30–41 kJ/mol). The pyrolysis of PPS followed the multistage reaction mechanism (F1 and A4) based on the Z-master plot technique.

Keywords: Biopolymer; Deconvolution analysis; Kinetic parameter; Pigeon pea stalk; Thermogravimetric analysis; Stage transition points (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148123001568
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:206:y:2023:i:c:p:157-167

DOI: 10.1016/j.renene.2023.02.012

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().