Static Analysis of the Thermochemical Hydrogen Production IS Process for Assessment of the Operation Parameters and the Chemical Properties

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Shin-ichi Nakao¹  Kaoru Onuki²  Seiji Kasahara²  Mikihiro Nomura³ 

[1] Department of Chemical System Engineering, Faculty of Engineering, University of Tokyo;Nuclear Applied Heat Technology Division, Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency;Department of Applied Chemistry, Faculty of Engineering, Shibaura Institute of Technology

关键词: Thermochemical Hydrogen Production;    Water-Splitting;    The IS Process;    Thermal Efficiency;    Heat/Mass Balance;   

DOI  :  10.1252/jcej.39.559

来源: Maruzen Company Ltd

【 摘 要 】

References(12)Cited-By(9)A sensitivity analysis of the operation parameters and the chemical properties in the thermochemical hydrogen production IS process (iodine-sulfur process) was carried out for a static flow sheet. These parameters were evaluated by hydrogen production thermal efficiency, the mass flow rate or heat exchange based on the heat/mass balance. The most important parameters were the concentration of HI after electro-electrodialysis (EED) and the apparent transport number of protons of the cation exchange membrane in the EED cell. HI concentration operation should be operated carefully because the parameters for optimum thermal efficiency and for the optimum flow rate and heat exchange were different. For the chemical properties, composition at the inlet of the HI decomposition procedure and HIx pseudo-azeotropic composition had great effects. The HI concentration after the EED should be optimized for each composition. The order of priority for the assessment of the operation parameters and chemical properties was determined by the evaluation.

【 授权许可】

Unknown