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Sensitivity study of thermo-physical properties of gas phase on absorber design for CO2 capture using monoethanolamine
KTH, School of Chemical Science and Engineering (CHE).
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2015 (English)In: CLEAN, EFFICIENT AND AFFORDABLE ENERGY FOR A SUSTAINABLE FUTURE, 2015, 2305-2310 p.Conference paper (Refereed)
Abstract [en]

Absorption of CO2 with aqueous amines in post-combustion capture is characterized as mass transfer process with chemical reaction. Hydrodynamics and mass transfer in gas and liquid phases in a packed column have significant influences on absorber design especially for the design of packing height. In this paper, the sensitivity study has been conducted to investigate the impacts of gas phase density, viscosity and diffusivity on the hydrodynamics and mass transfer and further the total packing height of a countercurrent flow with random packing column, using reactive absorption process and integral rate-based models. Results show that density and diffusivity have opposite effect to viscosity. Amongst various properties, diffusivity has the most significant effect on the packing height compared to density and viscosity. Overestimation of diffusivity of 5% may result in decrease of 3.2% of packing height. Moreover, developing more accurate diffusivity model should be prioritized for more accurate absorber design. (C) 2015 The Authors. Published by Elsevier Ltd.

Place, publisher, year, edition, pages
2015. 2305-2310 p.
, Energy Procedia, ISSN 1876-6102 ; 75
Keyword [en]
Post-combustion capture, Thermo-physical properties, Chemical absorption, Absorber design, Property impact
National Category
Environmental Sciences
URN: urn:nbn:se:kth:diva-174956DOI: 10.1016/j.egypro.2015.07.426ISI: 000361030003087ScopusID: 2-s2.0-84947055722OAI: diva2:860746
7th International Conference on Applied Energy (ICAE), MAR 28-31, 2015, Abu Dhabi, U ARAB EMIRATES

QC 20151013

Available from: 2015-10-13 Created: 2015-10-09 Last updated: 2015-10-13Bibliographically approved

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Tan, YutingYan, Jinyue
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