(4me) "Enhancing Energy Efficiency: Torrefaction of Chlorella Pyrenoidosa Microalgae for Solid Fuel Integration in Coal-Fired Power Plants"

My areas of interest in research are biomass usage and sustainable energy, with an emphasis on microalgal torrefaction for biofuel generation. In my study, I hope to reduce greenhouse gas emissions, minimize reliance on fossil fuels, and promote a sustainable energy transition by creating accessible and environmentally beneficial bio-energy options.

Abstract

This study aims to investigate the properties of fuels derived from microalgae feedstock processed through torrefaction, with the purpose of utilizing them as solid biomass fuels for co-firing in existing coal-fired power plants. Torrefaction of Chlorella Pyrenoidosa was carried out in a tubular reactor under operating conditions where the torrefied temperature was set at 180^oC, 240^oC and 300^oC with a residence time of 60 min and an inert atmosphere. The heating rate of 10^oC/min and nitrogen flow of 50 ml/min were chosen to examine the mass yield of solid torrefied biomass from Chlorella Pyrenoidosa. The Raw and torrefied biomass was characterized through high heating value, TGA, FTIR, XRD, proximate (moisture and ash content) and ultimate (CHNS) analysis. Results from FTIR (Fourier transform infrared) spectra and TGA (thermogravimetric analysis) point to a step-by-step deterioration process during torrefaction. When the degree of torrefaction rises, first the breakdown of carbohydrates occurs, and then the consumption of proteins. The ash content and fixed carbon content of torrefied biomass increase with an increase in operating temperature. The mass yield, moisture content, oxygen content, and hydrogen content of solid torrefied biomass all consistently decreased as temperatures rose under the same conditions. The results offer significant perspectives on the possible employment of refined microalgal species as fuels in industrial settings.