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ヨウ素,二酸化硫黄および水の反応に対する二酸化硫黄分圧の影響

Effect of sulfur dioxide partial pressure on the reaction of iodine, sulfur dioxide and water

中島 隼人; 今井 良行; 笠原 清司; 久保 真治; 小貫 薫

Nakajima, Hayato; Imai, Yoshiyuki; Kasahara, Seiji; Kubo, Shinji; Onuki, Kaoru

熱化学水素製造法ISプロセスの要素反応であるヨウ素と水の混合系への二酸化硫黄ガス吸収反応について、323K,ヨウ素飽和条件で、二酸化硫黄分圧の影響を調べた。定圧二酸化硫黄ガス存在下、2相分離(硫酸相とポリヨウ化水素酸相),擬似平衡状態への到達が観察され、同状態におけるポリヨウ化水素酸に対してブンゼン反応の逆反応による理想的脱硫操作を行って得られる溶液の酸濃度(HI/(HI+H$$_{2}$$O))は、高二酸化硫黄分圧のもとで高く、最大15.7$$pm$$0.3mol%に達した。

Effect of sulfur dioxide partial pressure on the reaction of iodine, sulfur dioxide and water, which is a unit reaction of thermochemical hydrogen production IS process, was studied experimentally at 323K under iodine saturated condition. Quasi-equilibrium state was observed in the presence of sulfur dioxide gas of constant pressure. The composition of the poly-hydriodic acid solution was discussed assuming an ideal desulfurization using the reverse reaction of the Bunsen reaction. The value of HI/(HI+H$$_{2}$$O) of the desulfurized solution was high in great sulfur dioxide pressure and reached the maximum of 15.7$$pm$$0.3 mol%.

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パーセンタイル:73.3

分野:Engineering, Chemical

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