Effect of H2O and its-resulting groups on coal-nitrogen evolution and transition in the initial stage of oxy-steam combustion
岳爽丁浩浩赵硕张月洪迪昆邓海顺
YUE Shuang;DING Haohao;ZHAO Shuo;ZHANG Yue;HONG Dikun;DENG Haishun
安徽理工大学 机电工程学院华北电力大学 能源动力与机械工程学院
近年来,以O2、H2O为工质的第3代富氧燃烧——氧−水蒸气(Oxy-steam)燃烧技术,因其巨大的CO2捕集潜力及优良的系统可靠性而备受关注。然而,H2O对煤粉着火燃烧的影响十分复杂且非线性,尤其对于高浓度H2O(体积分数30%~80%)作用下的煤氮热变迁机理尚且不明,传统的低氮燃烧技术或将不再适用于O2/H2O燃烧,进而加剧氮氧化物(NO
The 3th generation oxy-rich combustion technology, that is oxy-steam combustion with O2 and H2O as working medium, has recently attracted much attention due to its great potential and stability in the field of CO2 capture. Given that the effect of H2O on coal ignition and combustion is complex and non-linear, it is still unclear about the effect of H2O on coal-nitrogen evolution, particularly in high H2O concentration. In this case, the traditional low-nitrogen combustion technology would not be suitable for O2/H2O combustion, increasing the risk of excessive nitrogen oxide (NO
氧−水蒸气燃烧脱挥发分阶段H2O含氮前驱物分子动力学
oxy-steam combustion;devolatilization stage;H2O;nitrogen-containing precursor;molecular dynamic
主办单位:煤炭科学研究总院有限公司 中国煤炭学会学术期刊工作委员会