화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO)
권호 18권 2호, p.2125
발표분야 열역학
제목 Thermal Analysis of a Iodine Crystallizer in a SI Thermochemical Water Splitting Process
초록 SI water splitting process is considered as a promising technology for massive hydrogen production. The process is composed of three main parts named as Section I, II, and III. In Section I where Busen reaction take places, excess amount of I2 is introduced to separate reaction products. Therefore, the unreacted I2 is accompanied with HI and sent to Section III where HI is decomposed to generated hydrogen. In order to reduce burden and increase efficiency on Section III, the I2 should be removed from a process stream and recycled to Section I.
A crystallization process is developed to separate I2 prior to introduction of a product stream from Section I to Section III. A semi-continuous vertical crystallizer was devised to obtain I2 rich phase as a bottom stream. The crystallizer utilizes axial temperature gradient.
In this work, thermal analysis of the device was performed by using a commercial analysis tool. The variation of thermal conductivity was considered by Rowley method incorporating electrolyte-NRTL excess Gibbs energy parameters reported by UVa model which was a proven and suitable model for describing phase behavior of Section III.
저자 박병흥1, 배 건1, 강정원2
소속 1한국교통대, 2고려대
키워드 crystallization; thermal analysis
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