The Chemical Behaviors of Nitrogen Dioxide Absorption in Sulfite Solution
The Chemical Behaviors of Nitrogen Dioxide Absorption in Sulfite Solution
复制标题
亚硫酸盐溶液中二氧化氮吸收的化学行为
DOI：
10.3390/app7040377
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发表时间：
2017-04
影响因子：
2.7
通讯作者：
Xie Deyuan
中科院分区：
文献类型：
--
作者：
Sun Ye;Hong Xiaowei;Zhu Tianle;Guo Xiaoyan;Xie Deyuan
吸收法同时脱除氮氧化物(NOx)和二氧化硫(SO2)被认为是最有前途的烟气处理技术之一，而亚硫酸盐是吸收液中的主要成分。为了了解亚硫酸盐溶液中NO2吸收的化学行为，采用鼓泡反应器，采用烟气分析仪、离子色谱(IC)、气相色谱(GC)和傅里叶变换红外光谱(FTIR)等方法，研究了亚硫酸盐溶液中氮气和硫化物浓度随吸收时间的变化规律。还研究了N组分和S组分的质量平衡。结果表明，亚硫酸盐浓度对NO2的吸收有重要影响。吸附产物主要为NO_3-−和NO_2-−，在氧气存在下，NO_2-−可转化为NO_3-−。此外，鼓泡反应器排放的废气中还含有约4%~9%的S副产物和4%~11%的气相中N组分的副产物NO、N2、N2O5、N2O和HNO3。根据N和S的组成，提出了亚硫酸盐溶液吸收NO2的可能途径。
The simultaneous removal of nitrogen oxides (NOx) and sulfur dioxide (SO2) by absorption is considered to be one of the most promising technologies for flue gas treatment, and sulfite is the main component of the absorption solution. To understand the chemical behaviors of the NO2 absorption in sulfite solution, the absorption time dependences of concentrations of nitrogen and sulfur compositions in both gas phase and liquid phases were investigated by flue gas analyzer, Ion chromatography (IC), Gas chromatography (GC), and Fourier transform infrared spectrometry (FTIR) methods using a bubbling reactor. The mass equilibrium of the N and S compositions were also studied. The results indicate that sulfite concentration plays a vital role in NO2 absorption. The main absorption products are NO3− and NO2−, and NO2− can be converted into NO3− in the presence of oxygen. Besides, about 4% to 9% by-products of S compositions are formed, and 4% to 11% by-products of N compositions such as NO, N2, N2O5, N2O, and HNO3 in the gas phase were detected in the emissions from the bubbling reactor. On the basis of N and S compositions, a possible pathway of NO2 absorption in sulfite solution was proposed.
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影响因子：
4.7
作者：
Bernhard Hüpen;E. Kenig
通讯作者：
Bernhard Hüpen;E. Kenig
DOI：
10.1080/10643389.2015.1063334
发表时间：
2016-01
影响因子：
12.6
作者：
Yongxia Sun;Ewa A. Zwolińska;A. Chmielewski
通讯作者：
Yongxia Sun;Ewa A. Zwolińska;A. Chmielewski
影响因子：
5.3
作者：
Xiang Gao;Zhengwei Du;Honglei Ding;Zu-liang Wu;Hao Lu;Zhong-yang Luo;K. Cen
通讯作者：
Xiang Gao;Zhengwei Du;Honglei Ding;Zu-liang Wu;Hao Lu;Zhong-yang Luo;K. Cen
影响因子：
8.6
作者：
Thomas, D;Vanderschuren, J
通讯作者：
Vanderschuren, J
影响因子：
3.2
作者：
Gao, Xiang;Guo, Rui-tang;Cen, Ke-fa
通讯作者：
Cen, Ke-fa