Abstract
The present research work deals with the thermogravimetric analysis (TGA) and kinetic analysis of three typical Indian low rank coals selected from Indian coal mines at various temperature ranges. Experiments were performed at four different heating rate (50, 100, 150, 200 K/min) for three typical Indian low rank coal samples in a nitrogen atmosphere from temperature range 30–950 °C. The peak of temperature and mass loss for Indian low rank coal were evaluated. Current study also deals for the utilization and the behaviour of Indian low rank coal during the pyrolysis by using TGA. The activation energy for Indian low rank coal were calculated based on TGA data by using Friedman Method. Corresponding calculated mean value of activation energy for Indian low rank coal is found 49.132 kJ/mol. These experimental results help to explain and predict the behaviour of Indian low rank coal in practical applications.
Highlights
Pyrolysis is a thermochemical treatment of any organic product at particular temperatures range in the absence of oxygen
The present research work deals with the thermogravimetric analysis (TGA) and kinetic analysis of three typical Indian low rank coals selected from Indian coal mines at various temperature ranges
It is clearly shows that the weight loss of coal sample as volatile matter gets released from 200 °C to 450 °C
Summary
Pyrolysis is a thermochemical treatment of any organic (carbon based) product at particular temperatures range in the absence of oxygen. The study of pyrolysis includes the changes in chemical composition and characteristics of physical phase (Buratti et al 2015) This process includes the decomposition of coal’s organic structure and the releases of volatile matter up to 70% weight loss. The ignition point, rate of combustion and particle emission can be figured out with the help of pyrolysis of coal (Bach and Chen 2017; Chandrasekaran et al 2017; Cor et al 2000). This is a method for producing char to improve its calorific value. Thermal decomposition of coal plays key role in Pyrolysis characteristics and kinetics of Indian low rank coal using thermogravimetric
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