Simultaneous absorption of NOX and SO2 using hexamminecobalt (II) iodide solution

将开发一种成本效益高的技术，利用新型催化剂同时吸收烟气中的氮氧化物和二氧化硫。六胺钴（II）和碘离子是紫外辐照下可再生的共催化剂。最重要的是，在这种新型溶剂中，SO2实际上有利于NOx的去除，并且相应的NOx和SO2的效率可能比文献报道的要高得多。采用合理设计的喷雾塔，提高气液两相的接触面积，有望进一步提高排放控制效率。这种催化剂系统可以引入现有的氨基洗涤器（如氨溶液），而无需进行重大改造。生产的硫酸铵和硝酸铵可作为肥料工业的原料。

A cost-effective technology will be developed for simultaneous absorption of NOx and SO2 for flue gases using novel catalysts. Hexamminecobalt (II) and iodide ions are the co-catalysts which can be regenerated with UV irradiation. Most importantly, SO2 will actually be beneficial to the removal of NOx in this novel solvent and the corresponding efficiencies of NOx and SO2 could be much higher than those reported in literature. The emission control efficiency is expected to be further enhanced by high contact areas between the gases and liquid phases using a properly designed spray tower. Such a catalyst system may be introduced to existing ammonia-based scrubbers (such as ammonia solution) without major modifications needed. The products of ammonium sulfate and ammonium nitrate can be used as a feedstock for fertilizer industry.