期刊
CHEMICAL ENGINEERING SCIENCE
卷 281, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2023.119200
关键词
Steam methane reforming; Topology optimization; Solar reactor; Catalysts porosity; Gibbs free energy
In this study, the distribution of catalysts in a solar steam methane reforming reactor was optimized using topology optimization. By adjusting the porosity distribution of the catalysts, the reactor performance was improved in terms of hydrogen production and methane conversion.
This study optimized the distribution of catalysts porosity for solar steam methane reforming (SMR) reactor using the topology optimization with different objective functions. The optimized structures were similar, wherein dense catalysts were filled in the high-temperature region at the front of the reactor which increased the contact area between reactants and catalysts, and sparse metal foam catalysts were filled at the rear, which was conducive to reducing the flow resistance and facilitating the collection of products. To facilitate the filling in the actual production process, the optimized structure was simplified, and the simplification structure improved the hydrogen production by 6.84%-22.33% and the methane conversion by 6.54%-11.49% under different working conditions compared with the uniform distribution structure. By adjusting the porosity distribution of the catalysts, the temperature field of optimized reactor conformed to the principle of minimum Gibbs free energy (Gmin) and provided guidance for improving the solar SMR reactor performance.
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