Kinetic characteristics of blends of hydrothermally carbonized and dry torrefied lignocellulosic biomass
Bimal Acharya, Animesh Dutta and Prabir Basub
University of Guelph, Canada
Dalhousie University, Canada
: Expert Opin Environ Biol
Abstract
The main goal of this study is to investigate the kinetic characteristics and interaction of the carbon dioxide co-gasification of blends of coal and thermo-chemically processed Miscanthus (Miscanthus spp.) using thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). Thermo-chemically processed Miscanthus are prepared by wet torrefaction (WT), or hydrothermal carbonization (HTC) at 533K with residence time of 5 minutes at 5.5MPa pressure with 1:6 biomass-water mass ratio and dry torrefaction (DT) at 548K with residence time of 45 minutes at atmospheric pressure and blended with different ratios of coal. The kinetic characteristics show that the activation energy of the gasification of the processed biomass blends decreases with the increase in the biomass portion in the blends. Out of the blends tested, Coal- WT-DT at 60%:20%:20% shows the most synergistic interaction after analysis of TGA data. Hence, this ratio shows the most potential for replacing solid-fossil-fuel.
Biography
Email: bacharya@uoguelph.ca
