期刊
AICHE JOURNAL
卷 63, 期 1, 页码 23-31出版社
WILEY-BLACKWELL
DOI: 10.1002/aic.15496
关键词
methanation; fixed-bed reactor; dynamic optimization; optimal control; reactor start-up
Utilizing volatile renewable energy sources (e.g., solar, wind) for chemical production systems requires a deeper understanding of their dynamic operation modes. Taking the example of a methanation reactor in the context of power-to-gas applications, a dynamic optimization approach is used to identify control trajectories for a time optimal reactor start-up avoiding distinct hot spot formation. For the optimization, we develop a dynamic, two-dimensional model of a fixed-bed tube reactor for carbon dioxide methanation which is based on the reaction scheme of the underlying exothermic Sabatier reaction mechanism. While controlling dynamic hot spot formation inside the catalyst bed, we prove the applicability of our methodology and investigate the feasibility of dynamic carbon dioxide methanation. (c) 2016 American Institute of Chemical Engineers AIChE J, 63: 23-31, 2017
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