Fuel cells are electrochemical devices that are conventionally used to convert chemical energy of fuels into electricity while producing heat as a byproduct. High temperature fuel cells like the molten carbonate fuel cells and solid oxide fuel cells produce significant amounts of heat that can be used for the internal reforming of fuels like natural gas to produce gas mixtures which are rich in hydrogen, while also producing electricity. This opens up the possibility of using high temperature fuel cells in systems designed for flexible coproduction of hydrogen and power at very high system efficiency. In a previous study the flowheet software Cycle-Tempo has been used to determine the technical feasibility of a solid oxide fuel cell system for flexible coproduction of hydrogen and power by running the system at different fuel utilization factors (between 60% and 95%). Lower utilization factors correspond to higher hydrogen production while at a higher fuel utilization, standard fuel cell operation is achieved. This paper uses the same basis to investigate how a system with molten carbonate fuel cells performs in identical conditions also using Cycle-Tempo. A comparison is made with the results from the solid oxide fuel cell study.

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探索使用熔融碳酸盐燃料电池灵活联产氢能和电力的可能性

燃料电池是电化学装置，通常用于将燃料的化学能转化为电能，同时产生热量作为副产品。高温燃料电池，如熔融碳酸盐燃料电池和固体氧化物燃料电池，会产生大量热量，可用于天然气等燃料的内部重整，以产生富含氢气的气体混合物，同时还能发电。这开辟了在系统中使用高温燃料电池的可能性，该系统旨在以非常高的系统效率灵活地联合生产氢气和电力。在之前的一项研究中，flowheet 软件 Cycle-Tempo 已被用于确定固体氧化物燃料电池系统的技术可行性，该系统通过以不同的燃料利用率（60% 至 95%）运行系统来灵活地联合生产氢气和电力。较低的利用系数对应于较高的氢气产量，而在较高的燃料利用率下，可实现标准燃料电池操作。本文使用相同的基础来研究具有熔融碳酸盐燃料电池的系统在相同条件下也使用 Cycle-Tempo 的性能。与固体氧化物燃料电池研究的结果进行了比较。本文使用相同的基础来研究具有熔融碳酸盐燃料电池的系统在相同条件下也使用 Cycle-Tempo 的性能。与固体氧化物燃料电池研究的结果进行了比较。本文使用相同的基础来研究具有熔融碳酸盐燃料电池的系统在相同条件下也使用 Cycle-Tempo 的性能。与固体氧化物燃料电池研究的结果进行了比较。