Precipitation regime for selected amino acid salts for CO2 capture from flue gases
نویسندگان
چکیده
The tendency of alkaline (sodium, potassium and lithium) salts of taurine, β-alanine, sarcosine and L-proline to form precipitates under varying operational conditions of CO2 absorption has been investigated. CO2 absorption experiments have been performed at 293.15 and 313.15 K, at partial pressures relevant for capturing CO2 from flue gas conditions and amino acid salt concentrations up to the saturation concentration. In addition to this ‘window of operation’ for the (non-) precipitation regime, the identity of precipitates formed was revealed and relevant properties like density of the saturated aqueous amino acid salt solutions at 293.15 K have been determined. © 2008 Elsevier Ltd. All rights reserved
منابع مشابه
Protonation constants of amino acid salts at 298-353 K
Since there is no flue-gas desulfurization facility (FGD) in Australian Power Plants, the temperatures of flue gases from the plants range from 393–433 K which is much higher than the absorption temperatures in a typical post combustion CO2 capture (PCC) process. The additional cooling systems and equipments are required to cool flue gases. This adds to the cost, and water and energy consumptio...
متن کاملExperimental Studies of CO2 Capturing from the Flue Gases
CO2 emissions from combustion flue gases have turned into a major factor in global warming. Post-combustion carbon capture (PCC) from industrial utility flue gases by reactive absorption can substantially reduce the emissions of the greenhouse gas CO2. To test a new solvent (AIT600) for this purpose, a small pilot plant was used. This paper presents the results of studies ...
متن کاملA computational investigation on the structural features of alkanolamine solvents for CO2 capture process from power plant flue gas
متن کامل
Flue gas treatment for CO2 capture
This report is in two sections: the first describes the flue gas and its treatment in post-combustion capture and the second covers the flue gas in oxyfuel combustion capture. The main components of the flue gas in pulverised coal combustion for postcombustion capture are CO2, N2, O2 and H2O, and air pollutants such as SOx, NOx, particulates, HCl, HF, mercury as well as other contaminants. The ...
متن کاملHigh-throughput screening of metal-porphyrin-like graphenes for selective capture of carbon dioxide
Nanostructured materials, such as zeolites and metal-organic frameworks, have been considered to capture CO2. However, their application has been limited largely because they exhibit poor selectivity for flue gases and low capture capacity under low pressures. We perform a high-throughput screening for selective CO2 capture from flue gases by using first principles thermodynamics. We find that ...
متن کامل