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久保 真治; 竹上 弘彰; 田中 伸幸; 野口 弘喜; 上地 優; Myagmarjav, O.
no journal, ,
A thermochemical water-splitting iodine-sulfur (IS) process offers the potential for the mass production of hydrogen at high levels of efficiency. A test facility for producing hydrogen was constructed from corrosion-resistant chemical reactors. In this paper, engineering solutions for stable hydrogen using this facility are describes. Technical issues hindered stable hydrogen production included the unstable operation of the HI-I solution pump, leakage of corrosive solution owing to the breakage of glass lining equipment, pipe clogging owing to solid iodine precipitation in the HI-I solution, and unstable plant conditions in startup operation to make the closed-cycle. These technical issues were solved and were incorporated into the test facility, the entire process was successfully operated for 150 h at the rate of ca. 30 L/h.