โ Scribed by H. Teng; A. Yamasaki; Y. Shindo
No coin nor oath required. For personal study only.
in the ocean has been considered as a method to counteract global warming. A desirable method of the ocean disposal is to convert the less dense liquefied CO into denser CO hydrate via a submerged hydrate crystallizer at a depth (500 m. The fate of CO hydrate in the ocean has been investigated. It is shown in this study that hydrate particles released in the ocean are physicochemically unstable; however, hydrate decomposition occurs only as a surface phenomenon. Because CO hydrate is denser than seawater, hydrate particles will sink in the ocean. During the descending process, the hydrate particles dissolve gradually in seawater owing to decomposition occurring continuously at surfaces of hydrate particles. This dissolution fate of CO hydrate in the ocean is significantly different from the previous prediction that the disposed CO hydrate would exist as a long-lasting entity in the ocean.
๐ SIMILAR VOLUMES
## Abstract This article proposes a mechanism of CO~2~ hydrate formation taking into account both diffusion and reaction, and gives an analysis of its kinetics. The most important assumptions on the model are that water dissolves into liquid CO~2~ and reacts to form CO~2~ hydrate, and that the hydr