Digital twin-based optimization and demo-scale validation of absorption columns using sodium hydroxide/water mixtures for the purification of biogas streams subject to impurity fluctuations

Jacopo Pallavicini, Matteo Fedeli, Giacomo Domenico Scolieri, Francesca Tagliaferri, Jacopo Parolin, Selena Sironi and Flavio Manenti

Renewable Energy, 2023, vol. 219, issue P1

Abstract: This paper aims to validate a demo scale plant scrubber technology through experimental campaign and development of a digital twin. Thus, it is useful to evaluate the H2S absorption process in a biogas production plant for analysis and optimization purposes. The absorber unit removes H2S through the chemical absorption via sodium hydroxide (NaOH) as wet agent (30% w/w). The column treats 300 Nm3/h of biogas, whose inlet H2S concentration ranges from 1000 to 3000 ppm. Field measurements are conducted to investigate the H2S removal efficiency. An experimental dataset is collected, processed and used as input on Aspen PLUS suite to develop the digital twin.

Keywords: Digital twin; Process optimization; H2S removal; Biogas purification; Demo-scale campaign (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:219:y:2023:i:p1:s0960148123013812

DOI: 10.1016/j.renene.2023.119466

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