石炭燃焼に伴うN_2OおよびNOの生成過程におけるVolatile-NとChar-Nの分離挙動

概要

論文の詳細を見る
Formation mechanisms of N_2O and NO have been experimentally investigated using a temperature-controlled one-dimensional laminar-flow pulverized coal combustion furnace. The temperature range is 800-1100℃ including that of usual fluidized bed combustion. The effect of temperature and the separated contribution of Volatile-N and Char-N are clarified using raw coals and their chars carbonized in an actual bubbling fluidized bed combustor. N_2O formation and destruction reactions strongly depend on temperature, and N_2O almost disappears with the inclease of temperature above 1100℃. The conversion ratios of Volatile-N to N_2O and NO are higher than those of Char-N. While the Fast Volatile-N released at the early stage of combustion process is mainly converted to NO, the Slow Valatile-N released at the char combustion stage is selectively converted to N_2O.
一般社団法人日本機械学会の論文
1995-02-25