Assessment of the thermal degradation kinetics of fresh green coconut husk (Cocos nucifera L.) powder and after methyl levulinate production

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 04 Apr 2022Publisher:GSC Online PressJournal:Global Journal of Engineering and Technology Advances, volume 11, pages 36-46 (eissn: 2582-5003,

Copyright policy )

Authors: Poliana Pinheiro da Silva; Leonete Cristina de Araújo Ferreira Medeiros Silva; Eduardo Lins de Barros Neto; Paula Fabiane Pinheiro do Nascimento; Ricardo Paulo Fonsêca Melo; Francisco Wendell Bezerra Lopes; Lindemberg de Jesus Nogueira;

doi: 10.30574/gjeta.2022.11.2.0077 , 10.21203/rs.3.rs-1492510/v1 , 10.60692/7nzs7-w8335 , 10.5281/zenodo.6961505 , 10.60692/w3g87-36g42 , 10.5281/zenodo.6961506

Assessment of the thermal degradation kinetics of fresh green coconut husk (Cocos nucifera L.) powder and after methyl levulinate production

- Summary
- Subjects
- Metrics

Abstract

This study describes the recycling of green coconut husk powder (CHP) aimed at the sustainable production of methyl levulinate. The preliminary step involved thermogravimetric analysis of green (CHP) and residues after synthesis of methyl levulinate with the catalyst’s aluminum sulfate (CHP-AS) and titanium dioxide (CHP-TD), based on a degradation and determination of activation energy using the Ozawa-Flynn-Wall (OWF) method. Thermogravimetric analyses showed significant differences between the main constituents of CHP, CHP-AS and CHP-TD residues: hemicellulose (18.18, 9.78 and 12.17%), cellulose (44.65, 26.18 and 44.23%) and lignin (20.09, 19.89 and 19.58%), respectively. The methyl levulinate concentration obtained by the reaction between CHP and aluminum sulfate was 16.53 g.L-1, due to the participation of hemicellulose and cellulose. The results showed that the activation energies calculated using the OFW method were 142 kJ.mol-1 (CHP), 125 kJ.mol-1 (CHP-AS) and 180 kJ.mol-1 (CHP-TD).

Related Organizations

UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTE
Brazil
Universidade Federal Rural do Semi-Árido
Brazil
Federal University of Rio Grande do Norte
Brazil
Universidade Federal do Rio Grande do Norte
Brazil
UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTE
Brazil

View all View all

Keywords

Degradation (telecommunications), Pulp and paper industry, Biomedical Engineering, FOS: Mechanical engineering, Organic chemistry, FOS: Medical engineering, Lignin, Catalysis, Engineering, Activation energy, Cellulose, Green Coconut Husk Powder; Thermogravimetry; Thermal Degradation; Ozawa-Flynn-Wall Method; Levulinate, Biology, Green Chemistry, Mechanical Engineering, Botany, Thermogravimetric analysis, Hemicellulose, Computer science, Methyl cellulose, Nuclear chemistry, Chemistry, Catalytic Conversion of Biomass to Fuels and Chemicals, Physical Sciences, Telecommunications, Husk, Battery Recycling and Rare Earth Recovery

Impact byBIP!

	selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	1
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Average
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average