Carbon Dioxide Absorption in Triethanolamine Aqueous Solutions: Hydrodynamics and Mass Transfer. Issue 3 (7th February 2014)

• Record Type: Journal Article
• Authors: López, Ana B.; La Rubia, M. Dolores; Navaza, José M.; Pacheco, Rafael; Gómez‐Díaz, Diego
• Is Part Of: Chemical engineering & technology. Volume 37:Issue 3(2014:Mar.)
• Page Start: 419
• Page End: 426
• Publication Date: 2014-02-07
• Subjects: Chemical engineering -- Periodicals; Chemical processes -- Periodicals; 660.05
• DOI: 10.1002/ceat.201300603
• Languages: English
• ISSNs: 0930-7516

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The carbon dioxide absorption process by triethanolamine aqueous solutions was analyzed in a bubble‐column reactor taking into account the chemical reaction mechanism, gas‐liquid interfacial area, and mass transfer rate. A speciation study of this gas‐liquid system was developed by ¹H and ¹³C NMR spectroscopy in order to obtain the reaction mechanism and stoichiometry. The gas‐liquid interfacial area was evaluated considering the variations of bubble size distribution and gas holdup during the operation time. The liquid‐phase mass transfer coefficient was calculated from the carbon dioxide absorption rate data by interfacial area evolution and reaction stoichiometry.</p> </abstract>