The solubility of CO₂ in a 30 mass percent monoethanolamine solution

Abstract

The solubility of CO2 in a 30 mass % monoethanolamine (MEA) solution has been measured at eight temperatures between 0 and 150°C at partial pressures of CO2 ranging from 0.001 to 20,000 kPa. The data have been correlated using the Deshmukh‐Mather (1981) model.

Encapsulated liquid sorbents for carbon dioxide capture

“…6). The capacity of 30 wt% Na 2 CO 3 at equilibrium with flue gas with 0.1 bar CO 2 partial pressure allowing for the precipitation of NaHCO 3 (s) calculated to be 0.10 g CO 2 per gram solvent, as determined by Pitzer's equations and GWB Software (see Supplementary Methods) 27 , the same as MEA 28 . On the basis of previous analysis, the working capacity of sodium carbonate solution is slightly higher than MEA (7.1 versus 6.9% g per gram) 29,30 , but the values depend on process conditions.…”

Amine volatility in CO2 capture

“…CO 2 solubility measurements for loaded MEA obtained from the FTIR technique are compared to those reported by Jou et al (1995) and Dugas (2009) (2008) were obtained using the FTIR analysis. Dugas (2009) measured CO 2 solubility using a wetted wall column whereas Ermatchkov (2006) measured the equilibrium partial pressure using headspace gas chromatography.…”

A Technical, Economic, and Environmental Assessment of Amine-Based CO2 Capture Technology for Power Plant Greenhouse Gas Control

“…A number of previous studies have reported some cost and/or performance data for specific amine-based systems, including hypothetical applications to coal-fired power plants (19)(20)(21)(22)(23).…”

“…It was developed over 60 years ago as a general, non-selective solvent to remove acidic gas impurities (e.g. H 2 S, CO 2 ) from natural gas streams (21). The process was then adapted to treat flue gas streams for CO 2 capture.…”