화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2013년 가을 (10/23 ~ 10/25, 대구 EXCO)
권호 19권 2호, p.1745
발표분야 열역학
제목 Application of Electrolyte NRTL for Heat Duty Estimation on an Iodine Crystallizer for SI Thermochemical Hydrogen Production Process
초록 SI thermochemical hydrogen production process converts water into hydrogen and oxygen through three chemical reactions. The process is comprised of three sections and one of them is HI decomposition into H2 and I2 called as Section III. The production of H2 includes processes involving EED for concentrating a product stream from Section I. Additionally the I2 crystallization would be considered to reduce the burden on EED by removing certain amount of I2 out of a process stream prior to EED.  
In this study, the current thermodynamic model of SI process was briefly described and the calculation results of the applied Electrolyte NRTL model for phase equilibrium calculations were illustrated for ternary systems of Section III. We calculated temperature and heat duty of an I2 crystallizer and heat duty of heaters using UVa model and heat balance equation of simulation tool. The results were expected to be used as operation information in optimizing HI decomposition process and setting up material balance throughout SI process.
저자 이준규, 박병흥
소속 한국교통대
키워드 SI thermochemical hydrogen production process; Iodine crystallization; Electrolyte NRTL; Phase equilibrium; Heat duty
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