Gas-Phase Chemistry of the NO–SO2–ClO2 System Applied to Flue Gas Cleaning
Gas-Phase Chemistry of the NO–SO2–ClO2 System Applied to Flue Gas Cleaning
复制标题
DOI：
10.1021/acs.iecr.8b03067
复制
发表时间：
2018-09
影响因子：
4.2
通讯作者：
Jakob Johansson;Anette Heijnesson Hultén;S. Ajdari;P. Nilsson;Marie R Samuelsson;F. Normann;K. Andersson
中科院分区：
文献类型：
--
作者：
Jakob Johansson;Anette Heijnesson Hultén;S. Ajdari;P. Nilsson;Marie R Samuelsson;F. Normann;K. Andersson
研究了 NO、SO2 和 ClO2 之间发生的化学相互作用。重点是用气态 ClO2 氧化 NO，同时去除燃烧产生的烟气中的 NOx 和 SOx。进行了实验室规模的实验，以检查在以下条件下 NO 向 NO2 的转化： 温度范围 100–180 °C； H2O浓度在0%~25%范围内； ClO2-NO摩尔比在0.2-0.6范围内； NO 和 SO2 烟气浓度分别在 0-250 ppm 和 0-1000 ppm 范围内。结果表明，NO 被 ClO2 有效氧化，而 ClO2-SO2 反应则微不足道。在研究范围内，水浓度对氧化没有影响，温度的影响有限。结果有利于所研究应用的工艺经济性，因为相对于 SO2 氧化，ClO2 消耗可以忽略不计。
The chemical interactions that occur between NO, SO2, and ClO2 are investigated. In focus is the oxidation of NO with gaseous ClO2 for simultaneous removal of NOx and SOx from combustion-derived flue gases. Laboratory-scale experiments were conducted to examine the conversion of NO to NO2, under the following conditions: temperature range of 100–180 °C; H2O concentrations in the range of 0%–25%; ClO2–NO molar ratios in the range of 0.2–0.6; and NO and SO2 flue gas concentrations in the ranges of 0–250 ppm and 0–1000 ppm, respectively. The results show that NO is oxidized efficiently by ClO2, whereas the ClO2–SO2 reactions are insignificant. The water concentration had no effect on oxidation, and the temperature had a limited effect, within the investigated ranges. The outcomes favor the process economics of the studied application, since ClO2 consumption is negligible with respect to SO2 oxidation.