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SO
decomposition, HI distillation, and HI decomposition sectionNoguchi, Hiroki; Takegami, Hiroaki; Kamiji, Yu; Tanaka, Nobuyuki; Iwatsuki, Jin; Kasahara, Seiji; Kubo, Shinji
Proceedings of 8th International Topical Meeting on High Temperature Reactor Technology (HTR 2016) (CD-ROM), p.1029 - 1038, 2016/11
JAEA has been conducting R&D on the IS process for nuclear-powered hydrogen production. We have constructed a 100 NL/h-H
-scale test apparatus made of industrial materials. At first, we investigated performance of components in this apparatus. In this paper, the test results of HSO
decomposition, HI distillation, and HI decomposition were shown. In the HSO section, O production rate is proportional to HSO feed rate and SO
decomposition ratio was estimated about 80%. In HI distillation section, we confirmed to acquire a concentrated HI solution over azeotropic HI composition in the condenser. In HI decomposition section, H could be produced stably by HI decomposer and decomposition ratio was about 18%. The HSO decomposer, the HI distillation column, and the HI decomposer were workable. Based on the results added to that shown in Series I, we conducted a trial continuous operation and succeeded it for 8 hours.
Tanaka, Nobuyuki; Takegami, Hiroaki; Noguchi, Hiroki; Kamiji, Yu; Iwatsuki, Jin; Aita, Hideki; Kasahara, Seiji; Kubo, Shinji
Proceedings of 8th International Topical Meeting on High Temperature Reactor Technology (HTR 2016) (CD-ROM), p.1022 - 1028, 2016/11
Japan Atomic Energy Agency (JAEA) has manufactured 100 NL/h-H-scale hydrogen test apparatus. In advance to conduct the continuous operation, we investigated performance of the components in each section of the IS process. In this paper, the results of test of Bunsen and HI concentration sections was shown. In Bunsen reaction, section, we confirmed that outlet gas flow rate included no SO gas, indicating that all the feed SO gas was absorbed to the solution in the Bunsen reactor for the Bunsen reaction. On the basis of these results, we evaluated that Bunsen reactor was workable. In HI concentration section, HI concentration was conducted by EED stack. As a result, it can concentrate HI in HIx solution as theoretically predicted on the basis of the previous paper. Based on the results added to that shown in Series II, we have conducted a trial continuous operation and succeeded it for 8 hours.
Kubo, Shinji; Nakajima, Hayato; Kasahara, Seiji; Higashi, Shunichi*; Masaki, Tomoo*; Abe, Hiroyoshi*; Onuki, Kaoru
Nuclear Engineering and Design, 233(1-3), p.347 - 354, 2004/10
Times Cited Count：197 Percentile：99.48(Nuclear Science & Technology)no abstracts in English
Kubo, Shinji; Nakajima, Hayato; Higashi, Shunichi*; Masaki, Tomoo*; Kasahara, Seiji; Nomura, Mikihiro; Ishiyama, Shintaro; Onuki, Kaoru; Shimizu, Saburo
Proceedings of International Conference on Global Environment and Advanced Nuclear Power Plants (GENES4/ANP 2003) (CD-ROM), p.1072_1 - 1072_7, 2003/09
Studies on thermochemical water-splitting process of iodine-sulfur family (IS process) are being carried out at Japan Atomic Energy Research Institute (JAERI). IS process is composed of three chemical reactions and works like a chemical engine to produce hydrogen and oxygen from water. HTGR that can supply high temperature of ca. 1000
C will be the most suitable energy supplier to drive IS process. JAERI demonstrated the feasibility of continuous hydrogen production by combing the fundamental reactions and separations of IS process in laboratory. At present, hydrogen production test is continuing using a scaled-up glass apparatus. Corrosion-resistant materials for constructing a large-scale plant and process improvements by introducing advanced separation techniques such as membrane separation are under study, as well. Future R&D items are discussed based on these present activities.
Nakajima, Hayato; Ikenoya, Kazuhiko*; Onuki, Kaoru; Shimizu, Saburo
Kagaku Kogaku Rombunshu, 24(2), p.352 - 355, 1998/00
Times Cited Count：55 Percentile：87.48(Engineering, Chemical)no abstracts in English
