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ヨウ素,二酸化硫黄及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

今井 良行  ; 中島 隼人; 笠原 清司  ; 久保 真治  ; 小貫 薫

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

熱化学水素製造法プロセスの要素反応であるI$$_{2}$$とH$$_{2}$$Oの混合系へのSO$$_{2}$$ガス吸収反応について、323K$$sim$$363K, I$$_{2}$$飽和条件でSO$$_{2}$$分圧の影響を調べた。低圧SO$$_{2}$$ガス存在下、硫酸相との2液相の擬似平衡状態を示す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・高温のもとで高く、最大62.0$$pm$$1.2wt%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 323-363 K under iodine saturated condition. The value of HI/(HI+H$$_{2}$$O) of the desulfurized solution was high in great sulfur dioxide pressure and high temperature and reached the maximum of 62.0$$pm$$1.2 wt%.

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