Pyrolysis Kinetics of Lignocellulosic Waste Biomass (Cicer arietinum) using Iso-conversional Methods

Authors

  • Sunil L. Narnaware College of Technology and Engineering, Maharana Pratap University of Technology and Agriculture, Udaipur, Rajasthan-313001
  • N. L. Panwar College of Technology and Engineering, Maharana Pratap University of Technology and Agriculture, Udaipur, Rajasthan-313001

Keywords:

Activation energy, iso-conversional method, kinetic analysis, pyrolysis, TGA

Abstract

A study on kinetic analysis of Bengal gram stalk (BGS), an agricultural waste biomass, was carried out using thermogravimetric analyser in an inert atmosphere. Thermogravimetric (TG) and Derivative thermogravimetric (DTG) curves were obtained by varying heating rates at 10°C.min−1, 20°C.min−1, 30°C.min−1, and 40°C.min−1. Three iso-conversional methods viz. Flynn- Ozawa-Wall, Kissinger-Akahira-Sunose, and Starink were applied to determine the kinetic properties and simultaneously obtained the effective activation energies for BGS pyrolysis. The average activation energy (Eα) calculated for BGS was 113.37 kJ.mol-1 for FWO; 109.47 kJ.mol-1 for KAS, and 112.36 kJ.mol-1 for Starink method, respectively. The results showed that the effective activation energies for the pyrolysis of BGS varied with the degree of conversion (α) in the range of 0.1 to 1.0. The experimental analysis revealed the correlation between activation energy and conversion factor.

Published

2022-10-11

Issue

Section

Articles