Gaseous Ammonia Emissions from Coal and Biomass Combustion in Household Stoves with Different Combustion Efficiencies

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• 作者：Qing Li ; Jingkun Jiang ; Siyi Cai ; Wei Zhou ; Shuxiao Wang ; Lei Duan ; Jiming Hao
• 刊名：Environmental Science & Technology Letters
• 出版年：2016
• 出版时间：March 8, 2016
• 年：2016
• 卷：3
• 期：3
• 页码：98-103
• 全文大小：344K

文摘

This study reports on the emission characteristics of NH₃ from coal and biomass combustion in the household stoves. The average NH₃ emission factors (EFs) for burning 13 coal and four biomass briquette samples in a traditional heating stove were 1.01 and 0.95 mg/g, respectively, whereas the biomass EF in a traditional cooking stove was 0.96 mg/g. These NH₃ EFs did not present significant differences and were not well-correlated with the tested fuel properties. However, the modified combustion efficiency (MCE) appeared to be well-correlated with the NH₃ EFs measured from various fuel–stove combinations. For the same fuel samples, the advanced heating stove with a high MCE had a much lower average NH₃ EF of 0.13 mg/g. Our findings indicate that household combustion may be a significant NH₃ emission source in developing countries such as China, and demonstrate that utilizing improved combustion technologies is an effective method for reducing these emissions.