Water Desalination Process Using Gas Hydrate Formation

Today the various attempts have been done for developing of water desalination. The significant amount of researches has been performed to improve the technologies and reduce the cost of desalination. In recent years, gas hydrate has been applied in different fields such as the energy storage and separation process. One of the separation applications by hydrate is use of hydrate process for salt remove from water, because salts and impurities were not placed in hydrate structures at hydrate formation process. This research is investigated the potential applications of gas hydrate technologies for water desalination processes. The refrigerants can be formed the hydrate crystals at high temperatures and low pressures, so they are specially recommended in the desalination process. The problems of hydrate formation in desalination are the crystals separation from residual brine. In this study, hydrate-based desalination is investigated with apparatus design to easily extract dehydrated high-density gas hydrates from a reactor containing hydrate slurries that may solve the separation difficulty between hydrate crystals and concentrated brine solutions. Also this paper is presented the suitable hydrate forming and stages of desalination based on hydrate formation.