DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yoon, Ho-Joon | ko |
dc.contributor.author | No, Hee-Cheon | ko |
dc.contributor.author | Kim, Young-Soo | ko |
dc.contributor.author | Jin, Hyung-Gon | ko |
dc.contributor.author | Lee, Jeong-Ik | ko |
dc.contributor.author | Lee, Byung-Jin | ko |
dc.date.accessioned | 2013-03-12T02:07:57Z | - |
dc.date.available | 2013-03-12T02:07:57Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2009-10 | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.34, no.19, pp.7939 - 7948 | - |
dc.identifier.issn | 0360-3199 | - |
dc.identifier.uri | http://hdl.handle.net/10203/101052 | - |
dc.description.abstract | Conventional I-S cycle flowsheets suffer from low thermal efficiency and highly corrosive streams. To alleviate these problems, KAIST has proposed the optimal operating condition for the Bunsen reaction and devised a new flowsheet that produces highly enriched HI through spontaneous L-L phase separation and simple flash processes under low pressure. A series of experiments were performed at KAIST to validate the new flowsheet and extend its feasibility. The experimental procedure, measurement method with a rich iodine condition, and results of experiments are discussed in this paper. When the molar ratio of I(2)/H(2)SO(4) in the feed increased from 2 to 4, the molar ratio of HI/(HI + H(2)O) in the HIx phase improved from 0.157 to 0.22, which is high enough to generate highly enriched HI gas through flashing. An inverse Bunsen reaction and a sulfur formation were observed when the temperature was increased from 313 K to 343 K and the molar ratio of I(2)/H(2)SO(4) was decreased from 4 to 1. 10-50 wt% of HI in the feed turned into I(2) when an inverse Bunsen reaction and a sulfur formation occurred. The experimental data utilized in the previous parametric study of KAIST has been validated. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | HYDROGEN-PRODUCTION PROCESS | - |
dc.subject | SEPARATION | - |
dc.title | Demonstration of the I-S thermochemical cycle feasibility by experimentally validating the over-azeotropic condition in the hydroiodic acid phase of the Bunsen process | - |
dc.type | Article | - |
dc.identifier.wosid | 000271354700008 | - |
dc.identifier.scopusid | 2-s2.0-70349200606 | - |
dc.type.rims | ART | - |
dc.citation.volume | 34 | - |
dc.citation.issue | 19 | - |
dc.citation.beginningpage | 7939 | - |
dc.citation.endingpage | 7948 | - |
dc.citation.publicationname | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | - |
dc.identifier.doi | 10.1016/j.ijhydene.2009.07.100 | - |
dc.contributor.localauthor | No, Hee-Cheon | - |
dc.contributor.localauthor | Lee, Jeong-Ik | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Hydrogen production | - |
dc.subject.keywordAuthor | Iodine-sulfur thermochemical cycle | - |
dc.subject.keywordAuthor | Over-azeotropic Bunsen process | - |
dc.subject.keywordAuthor | Inverse Bunsen reaction | - |
dc.subject.keywordAuthor | Sulfur formation | - |
dc.subject.keywordPlus | HYDROGEN-PRODUCTION PROCESS | - |
dc.subject.keywordPlus | SEPARATION | - |
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