生物质气化气还原NO的化学反应动力学机制及数值模拟-大学化学.PDF

第 31 卷 第 5 期 中 国 电 机 工 程 学 报 Vol.31 No.5 Feb.15, 2011 120 2011 年 2 月 15 日 Proceedings of the CSEE ©2011 Chin.Soc.for Elec.Eng. 文章编号：0258-8013 (2011) 05-0120-05 中图分类号：TK 6 文献标志码：A 学科分类号：470·20 生物质气化气还原 NO 的化学反应动力学机制 及数值模拟 刘春元，罗永浩，张睿智，殷仁豪，段佳 (上海交通大学机械与动力工程学院，上海市 闵行区 200240) Chemical Kinetic Mechanism and Numerical Simulation on NO Reduction by Biomass Gasification Gas LIU Chunyuan, LUO Yonghao, ZHANG Ruizhi, YIN Renhao, DUAN Jia (School of Mechanical and Power Engineering, Shanghai Jiaotong University, Minhang District, Shanghai 200240, China) ABSTRACT: Biomass reburning can reduce NOx , as well as 0 引言 CO and SO emission, therefore it is a promising orientation 2 x 目前，生物质能被认为是解决能源危机和环境 for biomss utilization and has become a hot research subject. 污染问题的较好选择。尽管生物质资源量非常大， Biomass gasification for reburning, in contrast to direct 但是由于生物质资源供应具有季节性，分散分布， reburning, does not change the character of the fly ash, as well 能量密度小，运输、储存成本较高，因此限制了生 as prohibit the accumulating, slagging and fouling problems. It is expecially suitable for the biomass not easy to burn. Kinetic 物质能在大型电站的利用规模。目前我国规定生物 mechanism study on NO reduction by biomass gasification gas 质与煤混烧大于 80%，这不但在技术上不合理，而 can be helpful to understand the real reburning process, and 且燃料供应也难以保证。 simulation by the mechanism will optimise the reburning 再燃是燃煤锅炉降低 NOx 的一种简单而经济 process. We proposed a new set of kinetic mechanism fo