Absorption of Nitrogen Oxides into Sodium Hydroxide Solution in a Rotating Packed Bed with Preoxidation by Ozone
Absorption of Nitrogen Oxides into Sodium Hydroxide Solution in a Rotating Packed Bed with Preoxidation by Ozone
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DOI：
10.1021/acs.energyfuels.7b01417
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发表时间：
2017-09
期刊：
影响因子：
5.3
通讯作者：
Baochang Sun;Miaopeng Sheng;Wen-fan Gao;Liang-liang Zhang;Moses Arowo;Yan-ming Liang;L. Shao;Guang‐wen Chu;Hai-kui Zou;Jianfeng Chen
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文献类型：
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作者：
Baochang Sun;Miaopeng Sheng;Wen-fan Gao;Liang-liang Zhang;Moses Arowo;Yan-ming Liang;L. Shao;Guang‐wen Chu;Hai-kui Zou;Jianfeng Chen
本研究采用旋转填充床 (RPB) 来增强氢氧化钠 (NaOH) 溶液中氮氧化物 (NOx) 的吸收性能，并通过臭氧对 NO 进行预氧化。 NOx 的吸收性能通过在各种操作条件下从气流中的去除效率（η）来评估，包括 O3/NOx 摩尔比（MR）、RPB 转速（N）、液体流量（L）、NaOH 浓度（CNaOH）、入口 NOx 浓度（CNOx）和使用时间（t）。此外，还研究了向 NaOH 溶液中添加氧化剂（NaClO、H2O2 和 KMnO4）和还原剂（CO(NH2)2）对 NOx 去除效率的相应影响。结果表明，O3对NO的预氧化显着提高了NOx去除效率，去除效率随着O3/NOx摩尔比、NaOH浓度和液体流量的增加而增加，但随着入口NOx浓度和使用时间的增加而降低。此外，NOx 去除效率随着......
This study employed a rotating packed bed (RPB) to enhance the absorption performance of nitrogen oxides (NOx) into sodium hydroxide (NaOH) solution with the preoxidation of NO by ozone. The absorption performance of NOx was evaluated in terms of its removal efficiency (η) from a gas stream under various operating conditions including O3/NOx molar ratio (MR), rotation speed of the RPB (N), liquid flow rate (L), NaOH concentration (CNaOH), inlet NOx concentration (CNOx), and using time (t). Also, the corresponding effect of adding oxidants (NaClO, H2O2, and KMnO4) and a reductant (CO(NH2)2) into the NaOH solution on NOx removal efficiency was investigated. Results indicated that preoxidation of NO by O3 significantly improved NOx removal efficiency and the removal efficiency increased with increasing O3/NOx molar ratio, NaOH concentration, and liquid flow rate but decreased with increase in inlet NOx concentration and using time. Additionally, NOx removal efficiency first increased and then decreased with ...