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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Ultrasound-induced aqueous removal of nitric oxide from flue gases: Effects of sulfur dioxide, chloride, and chemical oxidant
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Ultrasound-induced aqueous removal of nitric oxide from flue gases: Effects of sulfur dioxide, chloride, and chemical oxidant

机译：超声诱导的烟道气中一氧化氮的水去除：二氧化硫，氯化物和化学氧化剂的作用

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摘要

The effects of sulfur dioxide (SO2), sodium chloride (NaCl), and peroxymonosulfate or oxone (2KHSO(5)center dot KHSO4 center dot K2SO4 with active ingredient, HSO5-) on the sonochemical removal of nitric oxide (NO) have been studied in a bubble column reactor. The initial concentration of NO studied ranged from about 500 to 1040 ppm. NaCl in the concentration range of 0.01-0.5 M was used as the electrolyte to study the effect of ionic strength. At the low NaCl concentration (0.01 M), the percent fractional removal of NO with initial concentration of 1040 ppm was enhanced significantly, while as the NaCl concentration increased, the positive effects were less pronounced. The presence of similar to 2520 ppm SO2 in combination with 0.01 M NaCl further enhanced NO removal. However, with a NO initial concentration of 490 ppm, the addition of NaCl was detrimental to NO removal at all NaCl concentration levels. The combinative effect of sonication and chemical oxidation using 0.005-0.05 M oxone was also studied. While the lower concentrations of HSO5- enhanced NO removal efficiency, higher concentrations were detrimental depending on the initial concentration of NO. It was also demonstrated that in the presence of ultrasound, the smallest concentration of oxone was needed to obtain optimal fractional conversion of NO.
机译：研究了二氧化硫（SO2），氯化钠（NaCl）和过氧一硫酸盐或过氧化物（2KHSO（5）中心点KHSO4中心点K2SO4含活性成分HSO5-）对声化学去除一氧化氮（NO）的影响在鼓泡塔反应器中研究的NO的初始浓度为约500至1040ppm。使用浓度范围为0.01-0.5 M的NaCl作为电解质，研究离子强度的影响。在较低的NaCl浓度（0.01 M）下，初始浓度为1040 ppm的NO去除百分率显着提高，而随着NaCl浓度的增加，其积极作用减弱。类似于2520 ppm的SO2与0.01 M NaCl的结合可进一步提高NO的去除率。但是，在NO初始浓度为490 ppm的情况下，添加NaCl不利于在所有NaCl浓度水平下的NO去除。还研究了使用0.005-0.05 M oxone进行超声处理和化学氧化的组合作用。虽然较低浓度的HSO5-增强了NO的去除效率，但较高浓度的有害于NO的初始浓度。还证明了在超声波的存在下，需要最小浓度的酮才能获得最佳的NO分数转化率。

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