Fundamental research for reduction of pollutant emission of coal combustion for zero CO_2 emission

提出了实现超清洁高效燃煤零排放（O_2/CO_2煤燃烧）的基本理论。结果表明，在低no_x燃烧条件下，可以利用O_2/CO_2煤燃烧的特点——高CO_2浓度。O_2/CO_2燃烧时NO_x的最低转化率比空气燃烧时低40%。碳酸盐是矿物与CO_2反应形成的，具有影响灰分沉积和气化的潜力。

We developed fundamental theory to achieve ultra-clean and high efficiency coal combustion for zero CO_2 emission(O_2/CO_2 coal combustion) simultaneously. The conditions are shown to use high CO_2 concentration, which is the feature in O_2/CO_2 coal combustion, for low-NO_x combustion. The lowest NO_x conversion ratio in O_2/CO_2 combustion is lower than it in air combustion by 40%. Moreover, it is shown that carbonate, which has a potential to affect ash deposition and gasification, is formed due to the mineral reaction with CO_2.