Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Multi-scale Modeling and Study of Aerosol Growth on Amine-Based CO2 Capture Absorber

Version 1 : Received: 2 July 2020 / Approved: 5 July 2020 / Online: 5 July 2020 (04:41:13 CEST)

A peer-reviewed article of this Preprint also exists.

Kang, J.-L.; Liu, K.-T.; Wong, D. .-H.; Jang, S.-S.; Tsai, D.-H. Multi-Scale Modeling and Study of Aerosol Growth in an Amine-based CO2 Capture Absorber. Environments 2020, 7, 58. Kang, J.-L.; Liu, K.-T.; Wong, D. .-H.; Jang, S.-S.; Tsai, D.-H. Multi-Scale Modeling and Study of Aerosol Growth in an Amine-based CO2 Capture Absorber. Environments 2020, 7, 58.

Journal reference: Environments 2020, 7, 58
DOI: 10.3390/environments7080058

Abstract

In this study, a monoethanolamine aerosol growth model was developed to investigate the aerosol growth factor. Interactions among the internal conditions in an absorber were considered in this aerosol model. Additionally, an experiment was conducted to measure aerosol particle size, for collecting in-house validation data. Sucrose was used as the aerosol nuclei instead of sulfuric acid to prevent the corrosion of equipment used in the experiment. Experimental results showed that the outlet aerosol sizes increased to the same size regardless of the sucrose concentrations. The aerosol growth model was validated using the in-house experimental data. The aerosol growth model efficiently predicted the aerosol size. For investigating aerosol growth effects, particle number concentration was determined to be the primary factor affecting aerosol growth and amine emissions. When the particle number concentration increased, the aerosol size decreased, whereas the MEA emission increased.

Subject Areas

aerosol; amine emission; CO2 capture; absorber; particle number concentration

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