Overview of hydrogen energy production in the Black Sea for the disposal of potentially hazardous hydrogen sulfide

Because of the elevated levels of hydrogen sulfide, the Black Sea has an anoxic environment. Anoxic conditions, which begin 150-200 m below the surface of the ocean, are gradually approaching the surface. To reduce and eliminate this harmful impact, many studies such as solar process, superadiabatic partial oxidation, sulfur-iodine thermochemical water separation, hydrogen sulfide pyrolysis and methane reforming electrocatalytic membrane reactor, and proton electrolyte membrane electrolyzer unit have been carried out to remove hydrogen sulfide in the Black Sea and to obtain hydrogen which is clean energy after removal. After reviewing the available techniques, a vertical inlet and in-situ platform system is suggested. In the first stage, seawater and hydrogen sulfide are separated using Henry's Law, and in the second stage, hydrogen gas and sulfur are separated using membrane filtering. It is anticipated that the hydrogen collected will be sufficient to cover the platform's energy needs.