Nowadays, with the depletion of underground resources and the increase in carbon dioxide, humans are obliged to use renewable energy. Liquid hydrogen production as one of the clean energy carriers with proper storage capability and transport to distant places has attracted a lot of attention. One of the main problems of hydrogen liquefaction cycles is the high power consumption for purification and liquefaction. In this paper, a novel integrated structure of hydrogen purification and liquefaction is developed using natural gas steam reforming, organic Rankine cycle, and photovoltaic panels. This integrated structure produces 1020 kmol/h liquid hydrogen and 3321 kmol/h fuel gas. The energy and exergy efficiencies of the integrated structure are 74.15% and 72.41%, respectively. The specific power consumption of the pre-cooling and purification, liquefaction, and total hydrogen purification-liquefaction cycles are 5.909, 2.725, and 8.592 kWh/ kgLH₂, respectively. The exergy analysis of the integrated structure exhibits that the highest exergy destruction occurs in heat exchangers (44.51%) and reactors (17.59%). The impact of different parameters on the performance of the integrated structure is studied. The sensitivity analysis demonstrates that the power energy consumption decreases up to 7.881 kWh/ kgLH₂ and exergy efficiency increases up to 0.801 when the methane content in inlet natural gas flow increases from 82 to 92 mol%. The thermal efficiency and productivity of the liquid hydrogen increase up to 0.7851 and 1084 kmol/h, respectively with the increase of reformer temperature from 550 °C to 650 °C.

如今，随着地下资源的枯竭和二氧化碳的增加，人类不得不使用可再生能源。液氢生产作为清洁能源载体之一，具有适当的储存能力和远距离运输能力，备受关注。氢气液化循环的主要问题之一是净化和液化的高能耗。在本文中，利用天然气蒸汽重整、有机朗肯循环和光伏电池板开发了一种新型的氢气净化和液化集成结构。这种集成结构可生产 1020 kmol/h 的液态氢和 3321 kmol/h 的燃气。集成结构的能量和火用效率分别为74.15%和72.41%。预冷净化的比功耗，液化和总氢气净化-液化循环分别为 5.909、2.725 和 8.592 kWh/kgLH2。集成结构的火用分析表明，最高的火用破坏发生在热交换器（44.51%）和反应堆（17.59%）。研究了不同参数对集成结构性能的影响。灵敏度分析表明，电力能耗降低至7.881 kWh/ kgLH₂当入口天然气流中的甲烷含量从 82 mol% 增加到 92 mol% 时，火用效率提高到 0.801。随着重整炉温度从 550 °C 增加到 650 °C，液氢的热效率和生产率分别提高到 0.7851 和 1084 kmol/h。