High-temperature electrolysis for large-scale hydrogen and syngas production from nuclear energy: summary of system simulation and economic analyses
High-temperature electrolysis for large-scale hydrogen and syngas production from nuclear energy: summary of system simulation and economic analyses
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DOI：
10.1016/j.ijhydene.2009.09.009
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发表时间：
2010-05
影响因子：
7.2
通讯作者：
J. O'Brien;M. McKellar;E. Harvego;C. Stoots
中科院分区：
文献类型：
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作者：
J. O'Brien;M. McKellar;E. Harvego;C. Stoots
爱达荷国家实验室（INL）正在进行一项研究和开发计划，以评估与固体氧化物电解电池技术实施相关的技术和规模问题，以实现高效的高温蒸汽制氢。这项工作得到了美国能源部核能办公室在氢核倡议下的支持。本文将提供迄今为止已完成的大规模系统建模结果和经济分析的概述。使用商业代码UniSim，并添加定制的高温电解槽模块，获得了系统分析结果。经济分析结果基于DOE H2A分析方法。系统模拟的工艺流程图包括一个先进的核反应堆作为高温工艺热源，一个动力循环和一个耦合蒸汽电解回路。在反应堆出口温度范围内，考虑了几种反应堆类型和动力循环。纯蒸汽电解制氢以及蒸汽/二氧化碳混合物共电解制合成气都被考虑过。此外，还考虑了高温电解工艺与生物质和煤基合成燃料生产耦合的可行性。这些模拟表明，在任何碳源的合成燃料生产中添加补充核氢，都可以最大限度地减少生产过程中的二氧化碳排放。
A research and development program is under way at the Idaho National Laboratory (INL) to assess the technological and scale-up issues associated with the implementation of solid-oxide electrolysis cell technology for efficient high-temperature hydrogen production from steam. This work is supported by the US Department of Energy, Office of Nuclear Energy, under the Nuclear Hydrogen Initiative. This paper will provide an overview of large-scale system modeling results and economic analyses that have been completed to date. System analysis results have been obtained using the commercial code UniSim, augmented with a custom high-temperature electrolyzer module. Economic analysis results were based on the DOE H2A analysis methodology. The process flow diagrams for the system simulations include an advanced nuclear reactor as a source of high-temperature process heat, a power cycle and a coupled steam electrolysis loop. Several reactor types and power cycles have been considered, over a range of reactor outlet temperatures. Pure steam electrolysis for hydrogen production as well as coelectrolysis for syngas production from steam/carbon dioxide mixtures have both been considered. In addition, the feasibility of coupling the high-temperature electrolysis process to biomass and coal-based synthetic fuels production has been considered. These simulations demonstrate that the addition of supplementary nuclear hydrogen to synthetic fuels production from any carbon source minimizes emissions of carbon dioxide during the production process.