Abstract In this study, the techno-economic, energy consumption (EC), and environmental performances of biomass-to-hydrogen (BTH) production with/without methane tri-reforming (MTR) from corn straw were studied. The techno-economic analysis includes an assessment of the energy efficiency, MTR operating conditions, total capital investment (TCI), production cost (PC), and payback period. The BTH energy efficiency with MTR is 17.08% higher than that without MTR. The Claus unit is the largest contribution unit of energy loss. The reaction temperature and operating pressure of one MTR unit are 800 °C and 0.1 MPa, respectively. Compared with BTH without MTR, the TCI of BTH with MTR increased by 10.97%, and the PC decreased by 10.12%. The static payback period of BTH with MTR is approximately 4.72 yr. BTH without MTR exhibits 3.09% less EC and 7.85% greenhouse gas emissions than that of BTH with MTR. The life cycle analysis of the BTH process illustrates that the BTH with MTR can realize negative carbon dioxide (CO2) emissions when considering the natural carbon cycle. The evaluation method combines a thermodynamic analysis with a life cycle assessment, which is significant for the development of clean hydrogen production technology with low carbon and high energy savings.

中文翻译：

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甲烷三重转化生物质制氢生命周期评价与技术经济分析

摘要 在本研究中，研究了使用/不使用玉米秸秆进行甲烷三重转化 (MTR) 的生物质制氢 (BTH) 生产的技术经济、能源消耗 (EC) 和环境性能。技术经济分析包括对能源效率、地铁运营条件、总资本投资 (TCI)、生产成本 (PC) 和投资回收期的评估。有MTR的BTH能源效率比没有MTR的BTH能源效率高17.08%。克劳斯单位是能量损失的最大贡献单位。一台MTR装置的反应温度和操作压力分别为800℃和0.1MPa。与没有MTR的BTH相比，有MTR的BTH的TCI增加了10.97%，PC下降了10.12%。BTH 与 MTR 的静态投资回收期约为 4.72 年。没有 MTR 的 BTH 表现出 3.09% 的 EC 和 7。85% 的温室气体排放量比地铁与 BTH 的排放量相比。BTH 过程的生命周期分析表明，在考虑自然碳循环时，带有 MTR 的 BTH 可以实现负的二氧化碳 (CO2) 排放。该评价方法将热力学分析与生命周期评价相结合，对发展低碳、高节能的清洁制氢技术具有重要意义。