Abstract
During oxy-coal combustion, recycled exhaust gas is used as a diluent to replace nitrogen in pulverized coal-fired boilers to moderate boiler temperatures. The effect of recycle (upto recycle ratios of 60%) on combustion of Powder River Basin (PRB) coal related submicrometer particle formation was investigated in a drop-tube furnace system. The recycled exhaust gas containing lower O2 concentration and higher CO2 concentration suppressed submicrometer particle formation. However, it was found that water vapor in recycled exhaust gas greatly enhanced the formation of submicrometer particles. The gas composition changes that result with exhaust-gas recycle significantly affected the size distribution of submicrometer particles at the exit of the combustor. Differences in the particle size distribution with and without filtration of recycled exhaust gas was insignificant. The composition of the resultant particles in oxy-coal combustion and conventional coal-air combustion as determined by X-ray diffraction was similar.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
