Analysis of carbon loss from a pulverized coal-fired boiler

摘要

Despite the large body of excellent work that has been done on the quantitative description of char combustion, our ability to specify the conditions to be met in order to maintain the carbon loss from pulverized coal-fired boilers below a desired value is still limited. The problems arise, in part, from the large number of fuel, combustion, and equipment characteristics that may influence carbon burnout. Measurements of the concentration and size disribution of carbon in fly ash from a 30 MW (electric) utility boiler have been used to test assumptions regarding the factors controlling carbon conversion.