Prospection of catole coconut (Syagrus cearensis) as a new bioenergy feedstock: Insights from physicochemical characterization, pyrolysis kinetics, and thermodynamics parameters

José Luiz Francisco Alves, Jean Constantino Gomes da Silva, Guilherme Davi Mumbach, Rennio Felix de Sena, Ricardo Antonio Francisco Machado and Cintia Marangoni

Renewable Energy, 2022, vol. 181, issue C, 207-218

Abstract: Catole coconut (Syagrus cearensis) is produced in abundance in the Northeastern region of Brazil, but still remains relatively unexploited for bioenergy purposes because of the little relevant scientific information available. In this context, this study aims to investigate the kinetics and thermodynamics that describe the pyrolysis of catole coconut through a multi-component approach, aiming to highlight its bioenergy potential. Thermogravimetric analysis of catole coconut was performed in an inert atmosphere with different heating programs (10, 20 and 30 °C min−1) to establish its pyrolysis behavior. The resulting pyrolysis behavior was subjected to deconvolution by the symmetrical Gaussian function to specify three independent components: pseudo-hemicellulose, pseudo-cellulose, and pseudo-lignin. By using four isoconversional methods, the average activation energy estimated is in the range of 124.2–133.5 kJ mol−1 for pseudo−hemicellulose, 159.7–170.1 kJ mol−1 for pseudo−cellulose, and 151.5–162.8 kJ mol−1 for pseudo−lignin. Based on the kinetic compensation effect, the pre-exponential factors were determined to be in the range of 3.5 × 1011–5.4 × 1014 min−1. Statistical results (R2>0.954 and Fit>0.944) indicate that the proposed summative kinetic expression proved to be valuable in reproducing the experimental pyrolysis behavior. The promising findings acquired from this study justify the interest in exploring catole coconut as a new bioenergy feedstock.

Keywords: Catole coconut; Bioenergy potential; Isoconversional methods; Gaussian function; Thermodynamic parameters (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148121013513
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:181:y:2022:i:c:p:207-218

DOI: 10.1016/j.renene.2021.09.053

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 ().