特集「放射光位相X線イメージングの新展開」
位相X線イメージングで探るガスハイドレートペレット
2019 年 62 巻 2 号 p. 88-91
詳細
2019 年 62 巻 2 号 p. 88-91
Gas hydrate pellets contains large amount of gas about 160–170 times as much as its volume and it is stored at 253 K by self-preservation effect. The self-preservation effect is exhibited by ice film on the gas hydrate surface. Phase contrast X-ray imaging is effective tool to distinguish ice from gas hydrate. It revealed that self-preserved gas hydrate pellets had ice film on its surface without internal dissociation by phase contrast X-ray imaging. On the other hand, gas hydrate pellets including NaCl were dissociated from its inside, then gas volume that they hold decreased.
