Start-up dynamic behaviors of a HI–I2–H2O distillation column for the sulfur-iodine hydrogen production cycle
Start-up dynamic behaviors of a HI–I2–H2O distillation column for the sulfur-iodine hydrogen production cycle
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DOI：
10.1016/j.ijhydene.2015.07.158
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发表时间：
2015-10
影响因子：
7.2
通讯作者：
Youngjoon Shin;Taehoon Lee;Ki-yooung Lee;Min-Hwan Kim
中科院分区：
文献类型：
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作者：
Youngjoon Shin;Taehoon Lee;Ki-yooung Lee;Min-Hwan Kim
由水生产氢的硫-碘（SI）循环需要HIx多级蒸馏塔以获得超共沸的异碘酸蒸气作为顶部产物，其随后可以分解成氢和碘。为了设计一个适用于循环的HIx多级精馏塔，必须对其进行静态和动态模拟。在韩国建造了一个在加压环境下运行的50 NL-H2/h规模的SI试验装置。本研究主要针对50 NL-H2/h SI试验装置的HIxMDC-50 L多级精馏塔进行研究。HIxMDC-50 L于2013年设计并安装。根据HIxMDC-50 L的设计指标和运行方法，使用模拟程序“KAERI-DySCo”分析了HIxMDC-50 L的启动行为。作为启动动态模拟的结果，确认HIxMDC-50 L将在1050 s内进入稳态值，以实现50 NL-H2/h的制氢速率。另一方面，不仅塔设计参数对稳态进展的影响，而且几个操作变量对塔顶产品的影响也已被评估，以安全操作HIxMDC-50 L。
The sulfur-iodine (SI) cycle to produce hydrogen from water requires a HIxmultistage distillation column to obtain hyperazeotropic hydriodic acid vapor as a top product that can be afterward decomposed into hydrogen and iodine. To design a HIxmultistage distillation column that can be applied to the cycle, its static and dynamic simulation is essentially demanded. A 50NL-H2/h scale SI test facility to be operated under a pressurized environment has been constructed in Korea. This study focuses on the HIxmultistage distillation column (HIxMDC-50L) for the 50NL-H2/h SI test facility. The HIxMDC-50L was designed and installed in 2013. Based on the design specifications and operation method, the start-up behavior of the HIxMDC-50L has been analyzed using the simulation code “KAERI-DySCo”. As a result of the start-up dynamic simulation, it is confirmed that the HIxMDC-50L will advance to the steady state value within 1050 s to fulfill a hydrogen production rate of 50NL-H2/h. On the other hand, not only the effects of the column design parameters on the progress to a steady state but also the effects of several operation variables on the top product have been evaluated for safely operating the HIxMDC-50L.