Hanfei Guo, Ping Zhang, Songzhe Chen
Sep 1, 2012
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Influential Citations
18
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Journal
International Journal of Hydrogen Energy
Abstract
abstract The hydriodic acid decomposition section (HI x section) of the iodineesulfur water splittinghydrogen production process (IeS process), to a large extent, determines the efficiency ofthe whole process. The flowsheet of the HI x section includes several internal circuits,which can recover the lost HI due to the distillation of the azeotrope and the low one-passconversion ratio of the HI decompostion reaction. The employment of the circuits iscapable of increasing the utilization of the input HI. However, different designs of thecircuits influence the mass and heat balance of the flowsheet, and furthermore result indistinctions of the hydrogen production efficiency and the required input rate. In order toexamine the performance of the HI x section flowsheets with diverse internal circuits andpursue high efficiency, the present research used simulation methods to invesigate the HI x section flowsheet. The effects of different designs of internal circuits in the HI x section onthe required input flow rate and heat duty for producing 1 mol hydrogen were studied.Based on the results, the most efficient circuit design was proposed and compared with thework of other researchers. In addition, the heat recovery problems of the flowsheet werediscussed.Copyright a 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rightsreserved.