The effect of biomass pyrolysis gas reburning on N_2O emission in a coal-fired fluidized bed boiler

• 来源期刊: 科学通报(英文版)
• 学科: 工学
• 年，卷（期）: 2011,（14）
• 页码范围: 1429-1433
• 页数: 5页
• 分类号: TK229.6
• 语种: 中文

摘要

The fossil fuel consumption and pollutant emissions in a coal fired fluidized bed boiler could be reduced by biomass pyrolysis gas reburning.The influence of three kinds of biomass pyrolysis gases on the emission of N2O in a laboratory scale fluidized bed was investigated using the mechanism of GRI3.0 in this paper.The results showed that:the effect of sawdust pyrolysis gas reburning on N2O was more significant than that of rice husk and orange peel under the same conditions;the increase of initial oxygen content from 1% to 8% in flue gas would restrain the decomposition of N2O;the N2O decomposition was enhanced by increasing reaction temperature from 1073.15 K to 1323.15 K,and the decomposition rate may reach 99% at 1223.15 K.