화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO)
권호 18권 2호, p.1651
발표분야 공정시스템
제목 SI process using permeable membrane
초록 The Sulfur-Iodine thermochemical cycle offers a promising approach to the high efficiency production of hydrogen from nuclear power. Several SI cycles had been proposed by several research group. General Atomic (GA) studied I2 separation by extractive distillation using H3PO4. RWTH introduced the concept of reactive distillation. HIx stream coming from the Bunsen reaction is fed to the column. And HIx is distillated and decomposed at the same time to obtain hydrogen. Korea Institute of Energy Research (KIER) and Japan Atomic Energy Agency (JAEA) concentrate HIx using electro-dialysis cell and concentrated HIx is fed to the column to produce HI vapor, which is decomposed to produce hydrogen. HI was separated from HIx solution by an extractive distillation using H3PO4. However, a large amount of electric energy was required to recycle H3PO4. Most of SI processes have difficulties producing hydrogen because it has excess iodine in HI decomposition Section. SI cycle with electro-dialysis cell uses membrane reactor to separate H2 and HIx. The current state of the membrane technology is not compatible with the process needs.
We studied several cases of flowsheets to overcome the problems mentioned above. We revised the flowsheet by adding the iodine separator and excluded membrane reactor. We analyzed the thermal efficiency of SI process based on revised flowsheet.
저자 조원철, 배기광, 정성욱, 김창희, 박주식, 강경수
소속 한국에너지기술(연)
키워드 sulfur iodine ㅐ
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