| 摘要 |
PROBLEM TO BE SOLVED: To prepare liquefied hydrogen with high efficiency, by supplying as fuel, hydrogen from a hydrogen generator directly to the combustor of a combined cycle plant, and driving a hydrogen liquefying compressor by the output of the plant. SOLUTION: A liquefied hydrogen producing device comprises a hydrogen supply system 20, a combined cycle power generation system 21, a hydrogen liquefying system 22 and a cooling system 23, and hydrogen generated in the hydrogen generator 24 of the hydrogen supply system 20 is stored as pure hydrogen gas in a storage tank 26 through a high purity hydrogen gas purifier 25. The hydrogen liquefying compressor 28 of the hydrogen liquefying system 22 is directly connected to the gas turbine 8 of this combined cycle power generation system 21, and when this compressor 28 is driven by the gas turbine 8, hydrogen gas is sucked from the storage tank 26, supplied to a hydrogen liquefying heat exchanger 32 through a compressed hydrogen cooler 28 and expansion turbines 31a, 31b, and liquefied by being thermally insulated and expanded by Joule-Thomson effect. |
