日本エネルギー学会大会講演要旨集
Online ISSN : 2423-8325
Print ISSN : 2423-8317
第26回日本エネルギー学会大会
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Session 2
2-4-3 THFハイドレートに対するアンモニウムイオンの分配係数
西谷 隆介谷 篤史佐々木 晶
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会議録・要旨集 フリー

p. 54-55

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Although it is known that ammonium ion is replaced with a part of water cages of clathrate hydrate, it isn't known how much amount of ammonium ions are included into clathrate hydrate with the formation. We investigated how much amount of ammonium ions were included into clathrate hydrate with its formation. Tetrahydrofuran (THF) hydrate, as an analogue for CH4 and CO2 hydrate, was formed in a solution of THF with ammonium chloride. The concentration of ammonium ion in THF hydrate (CS) was determined and compared with the initial concentration of ammonium ion (C0). The ratio of CS to C0 (K=CS/C0) was determined when the volume ratio of formed solid to liquid was less than 0.9. The K value was 0.28 approximately when C0 wasn't more than 10 mmol/L. This value was about three times more than that value when ice was formed in an ammonium ion solution.

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