Novel concept of supporting the membrane separation of CO2 in power plants by thermoacoustic dehumidification

Leszek Remiorz, Grzegorz Wiciak and Krzysztof Grzywnowicz

Energy, 2019, vol. 189, issue C

Abstract: A high moisture content in exhaust gases adversely affects flue gas treatment – both with respect to particulate matter, as well as its gaseous compounds. Thus, the water vapor content in exhaust gases, especially in natural gas-fuelled units, might be a significant limitation preventing the widespread implementation of advanced flue gas treatment using membrane separation-based CO2 capture. The negative impact of humidity on membrane separation processes is briefly discussed, basing on simple experimental investigation. This paper presents a method for accomplishing flue gas treatment via moisture condensation using process heat, based on the applying the thermoacoustic cooling phenomenon. Further computational analysis, which is devoted to the application of the indicated method in a gas turbine combined cycle unit based on both experimental and literature data, proves potential applicability of discussed method. The results of the investigation suggest appropriate parameters for flue gas dehumidification, using the presented method, as well as the areas, where further investigation and optimization are necessary.

Keywords: Membrane separation; Exhaust gas treatment; Thermoacoustic cooling (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:189:y:2019:i:c:s0360544219318869

DOI: 10.1016/j.energy.2019.116191

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