A Study of Combustion Profiles of Co-Fired Coal/Biomass/Limestone Samples in a Fluidized Bed Combustor

摘要

Concerns over declining landfill space and a renewed interest in waste-toenergy technologies have increased the possibilities of co-firing different types of fuels in atmospheric fluidized bed combustion systems. The laboratory sized atmospheric fluidized bed combustor (AFBC) at Western Kentucky University was designed to serve as a highly flexible research and development facility to gain operating experience, evaluate combustion performance, and estimate the effect of flue gas emissions on the atmosphere. The operating conditions for the AFBC system are similar to those used at the TVA 160-MW AFBC Pilot Plant located near Paducah, Kentucky. AFBC systems are ideal for co-firing because of their ease in heat conversion and ability to burn a wide range of fuels. GC/FTIR/IC techniques can be used to characterize the combustion of fuel blends by evolved gas analysis. This analysis can be used to determine the best combination of fuels.