Progress in the development of solid-state natural gas vessels in Japan
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Japan's Mitsubishi Heavy Industries and Mitsui Shipbuilding have made breakthroughs in the development of solid-state natural gas (NGH) carriers. At present, Mitsubishi Heavy Industries is cooperating with the maritime technical safety research institute under the Japanese government to promote the commercialization of NGH transport vessels at an early date.
According to analysis by professional and technical personnel, compared with LNG ships, NGH ships have three advantages: First, the water and natural gas are converted into compounds under high pressure to form dry ice, transported and maintained at minus 20 degrees Celsius. Its solid state, which is lower than LNG's processing cost of 163 degrees Celsius, and is much higher than LNG's transportation safety factor. Second, the NGH production equipment is small, and the initial investment amount is only half of the investment of LNG equipment. Third, the NGH ship is more convenient to use than the LNG ship, and it is more convenient and flexible for some small and medium-sized natural gas fields to transport natural gas, which can greatly reduce the cost.