Experimental investigation on pyrolysis kinetics, reaction mechanisms and thermodynamic parameters of biomass and tar in N2 atmosphere. (December 2021)

• Record Type: Journal Article
• Authors: Pattanayak, Satyajit; Hauchhum, Lalhmingsanga; Loha, Chanchal; Sailo, Lalsangzela; Mishra, Laxman
• Is Part Of: Sustainable energy technologies and assessments. Volume 48(2021)
• Publication Date: 2021-12
• Subjects: Biomass -- Biomass Tar -- Kinetic analysis -- Thermodynamic parameters -- Reaction model; Renewable energy sources -- Periodicals; Energy development -- Technological innovations -- Periodicals; Electric power production -- Periodicals; Energy storage -- Periodicals; 333.79
• DOI: 10.1016/j.seta.2021.101632
• Languages: English
• ISSNs: 2213-1388

Abstract

Graphical abstract: Highlights: Study the pyrolysis of biomass materials and tar derived from the biomass materials using TGA. Kinetic analysis using model free method and evaluation of kinetic parameters. Determination of thermodynamic parameters and reaction models. Evaluation of the properties of biomass tar using GC–MS. Study shows that biomass tar can also be used as viable alternative fuel like biomasss. Abstract: Biomass is an important carbon neutral energy source which is generated in huge quantity naturally and through various human activities. There are different types of biomasses like agricultural waste, forest residue, industrial waste, municipal solid waste etc. However, in biomass thermal conversion process, tar is an inevitable waste or by-product that has a significant impact on the overall efficiency and economy of the process. The present study aims to investigate the potential of using biomass tar as fuel and compare with the parent biomass. Therefore, pyrolysis of three different biomass materials (bamboo, betelnut shell and rice straw) and their tars are investigated in a Thermogravimetric Analyzer (TGA). Pyrolysis experiments are carried out under N2 atmosphere with four different heating rates of 10, 20, 30 and 40 K/min. Maximum temperature used for the pyrolysis experiments is 900℃. Kinetic analysis is done using three model free methods. Kinetic parameters, thermodynamic parameters and reaction models are evaluated. The activation energy for biomass tar is found to be lower than parent biomass material. The results reveal that the biomass tars have good thermal properties and fuel generation capabilities.