2014
DOI: 10.1016/j.cej.2014.03.120
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CO2 absorption kinetics in a CO2-free and partially loaded aqueous ammonia solution

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Cited by 13 publications
(3 citation statements)
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“…It has been found in the literature that the reaction rates increases with the temperature up to 358C and then decreases with the temperature, the overall rate is slightly affected within the range 20-358C [45]. Also to reduce the volatility of ammonia (i.e., may decrease the available concentration of reacting ammonia) the ammonia-based processes are operated in the temperature range of 15-308C [46,47]. Our results are similar to these although the systems used are different in characteristics but based on the same reaction kinetics of ammonia and CO 2 .…”
Section: Effect Of Temperaturementioning
confidence: 99%
“…It has been found in the literature that the reaction rates increases with the temperature up to 358C and then decreases with the temperature, the overall rate is slightly affected within the range 20-358C [45]. Also to reduce the volatility of ammonia (i.e., may decrease the available concentration of reacting ammonia) the ammonia-based processes are operated in the temperature range of 15-308C [46,47]. Our results are similar to these although the systems used are different in characteristics but based on the same reaction kinetics of ammonia and CO 2 .…”
Section: Effect Of Temperaturementioning
confidence: 99%
“…However, the simulation results based on equilibrium have a large deviation from the application scenario, which is of little reference value. Kim et al 26 measured the aqueous ammonia with 0.1 CO 2 loading used by the wetted wall reactor and found that the CO 2 absorption rate of the partially loaded solution was lower than that of unloaded solution. The reason is that the concentration of OH − decreases significantly, leading to the decrease of chemical reaction rate.…”
Section: Introductionmentioning
confidence: 99%
“…However, alternative absorbents are required to overcome the drawbacks of alkanolamines and potassium carbonate. Among several alternatives, in natives, ammonia solution is attracting attention owing to their low cost, low levels of regeneration energy, little corrosion, not degradation like happened for the amines, and higher absorption capacity than the alkanolamines and potassium carbonate at the same operating temperature and pressure [13][14]. Experimental studies had been widely carried out for assessment the comparison performance between ammonia and monoethanolamine absorbents to minimize carbon dioxide had been extensively carried out systematically.…”
Section: Introductionmentioning
confidence: 99%