Development of sulfuric acid decomposer for thermochemical hydrogen production IS process

Terada, Atsuhiko; Ota, Hiroyuki; Noguchi, Hiroki; Onuki, Kaoru; Hino, Ryutaro

Nihon Genshiryoku Gakkai Wabun Rombunshi, 5(1), p.68 - 75, 2006/03

https://doi.org/10.3327/taesj2002.5.68

The Japan Atomic Energy Agency has been conducting R&D on high-temperature gas-cooled reactor (HTGR) technology and also on thermo-chemical water splitting hydrogen production technology by using an iodine-sulfur cycle (IS process) in the high temperature engineering test reactor (HTTR) project. The sulfuric acid (HSO) decomposer is one of the key equipments in the IS process, in which concentrated sulfuric acid is evaporated and decomposed into SO and HO with the heat of high temperature helium gas supplied by HTGR. A concept of the decomposer consisting of multi-block-type heat exchanger made of SiC ceramics was proposed, and its feasibility was examined by preliminary analyses of thermal-hydraulic and structural strength and test-fabrication of SiC block components as well as elementary tests of seal performance in SiC blocks and metal flanges.

Chemical analysis of simulated high-level radioactive waste glass by ICP-AES and AAS

Bamba, Tsunetaka; *; Tamura, Yukito; Yonezawa, Chushiro

Bunseki Kagaku, 42, p.317 - 323, 1993/00

https://doi.org/10.2116/bunsekikagaku.42.5_317

no abstracts in English

Separation of Pu-Am from the leachant of a deposit in an acid digestion solution by calcium-oxalate coprecipitation

; ; ; ;

Sep.Sci.Technol., 18(2), p.177 - 186, 1983/00

https://doi.org/10.1080/01496398308055667

no abstracts in English

鋼材

広田 憲亮; 橘 幸男

竹田 貴代子*; 正木 康浩*

JP, 2020-182368  Patent licensing information

【課題】ISプロセスを実施する環境下においても優れた耐食性を発揮し、かつ良好な加工性および強度を有する鋼材を提供する。 【解決手段】化学組成が、質量%で、C:0.05~0.10%、SI:0.10~0.50%、AL:3.0~6.0%、MN:0.30~1.50%、P:0.05%以下、S:0.02%以下、N:0.01%以下、NI:25.0~40.0%、CR:17.0~25.0%、B:0.0015~0.0080%、TI:0.15~0.60%、残部:FEおよび不純物である、鋼材。