This study is conducted to quantify the fossil energy input (FEI) and the global warming potential (GWP) of hydrogen production through iron-based chemical-looping process with CO₂ capture using non-aqueous phase bio-oil (NAPB) from biomass fast pyrolysis as fuel. The eBalance software with Chinese Life Cycle Database is employed to implement this work based on the method of life cycle assessment (LCA). The LCA results indicate NAPB production consumes the largest fossil energy and contributes the largest GWP while chemical-looping hydrogen production (CLHP) plays a critical role in lessening greenhouse gas (GHG) emission. The net FEI and the net GWP of hydrogen production is, respectively, 0.597 MJ and −0.0767 kg CO_{2, eq.} per MJ hydrogen gas via the proposed production pathway, far below those of the conventional hydrogen production via natural gas steam reforming and coal gasification. The sensitivity analysis shows the data uncertainty of the discussed parameters except the electricity consumption for NAPB production has no significant impact on the net GWP. The chemical-looping process with CO₂ capture may be a more promising option to sustainably produce hydrogen gas especially using renewable biomass as fuel.

这项研究旨在量化化石能源输入（FEI）和通过铁基化学环化过程以及使用非水相生物油（NAPB）快速捕获CO _2的铁基化学环化过程制氢的全球变暖潜能（GWP）热解为燃料。基于生命周期评估（LCA）的方法，使用带有中文生命周期数据库的eBalance软件来完成这项工作。LCA结果表明，NAPB生产消耗最大的化石能源并贡献最大的GWP，而化学循环制氢（CLHP）在减少温室气体（GHG）排放中起关键作用。制氢的净FEI和净GWP分别为0.597 MJ和-0.0767 kg CO _{2，当量。}通过拟议的生产途径产生的每兆焦耳氢气，远低于通过天然气蒸汽重整和煤气化产生的传统氢气。敏感性分析表明，所讨论参数的数据不确定性，除了用于生产NAPB的电力消耗对净全球升温潜能值没有显着影响。具有CO ₂捕集的化学循环过程可能是一种更有希望的选择，以可持续地产生氢气，尤其是使用可再生生物质作为燃料。