节点文献
碘硫循环中硫酸相与氢碘酸相的纯化过程(英文)
Purification of Sulfuric and Hydriodic Acids Phases in the Iodine-sulfur Process
【摘要】 Iodine-sulfur(IS) thermochemical water-splitting cycle is the most promising massive hydrogen production process.To avoid the undesirable side reactions between hydriodic acid(HI) and sulfuric acid(H2SO4),it is necessary to purify the two phases formed by the Bunsen reaction.The purification process could be achieved by reverse reaction of the Bunsen reaction.In this study,the purification of the H2SO4 and HI Phases was studied.The purification proceeded in both batches and the continuous mode,the influences of operational parameters,including the reaction temperature,the flow rate of nitrogen gas,and the composition of the raw material solutions,on the purification effect,were investigated.Results showed that the purification of the H2SO4 phase was dominantly affected by the reaction temperature,and iodine ion in the sulfuric acid phase could be removed completely when the temperature was above 130°C;although,the purification effect of the HI phase improved with increasing of both the flow rate of nitrogen gas and temperature.
【Abstract】 Iodine-sulfur(IS) thermochemical water-splitting cycle is the most promising massive hydrogen production process.To avoid the undesirable side reactions between hydriodic acid(HI) and sulfuric acid(H2SO4),it is necessary to purify the two phases formed by the Bunsen reaction.The purification process could be achieved by reverse reaction of the Bunsen reaction.In this study,the purification of the H2SO4 and HI Phases was studied.The purification proceeded in both batches and the continuous mode,the influences of operational parameters,including the reaction temperature,the flow rate of nitrogen gas,and the composition of the raw material solutions,on the purification effect,were investigated.Results showed that the purification of the H2SO4 phase was dominantly affected by the reaction temperature,and iodine ion in the sulfuric acid phase could be removed completely when the temperature was above 130°C;although,the purification effect of the HI phase improved with increasing of both the flow rate of nitrogen gas and temperature.
【Key words】 iodine-sulfur process； H2SO4 phase； hydriodic acid phase； purification； reverse Bunsen reaction；
- 【文献出处】 Chinese Journal of Chemical Engineering ,中国化学工程学报(英文版) , 编辑部邮箱 ,2009年01期
- 【分类号】O611.3
- 【被引频次】12
- 【下载频次】165