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Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels
Pressurizing a fluidized bed combustor with a gas turbine greatly improves both sulfur retention and combustion efficiency. Operating the gas turbine with a high inlet temperature (e.g. 900°C) would yield a thermal efficiency about four points higher than for an atmospheric furnace, but 40 y of experience have failed to solve problems with flyash erosion and deposits. Extensive experience such as that with fluidized bed catalytic cracking units indicates that the gas turbine blade erosion anddoi:10.1115/85-igt-46 fatcat:bmn5k7f63vgg5a7ocycn3j2uqa