Vaporization reduction characteristics of aqueous ammonia solutions by the addition of ethylene glycol, glycerol and glycine to the CO2 absorption process

Seo, Jong-Beom; Jeon, Soo Bin; Kim, Je-Young; Lee, Gang-Woo; Jung, Jong-Hyeon; Oh, Kwang–Joong

doi:10.1016/s1001-0742(11)60797-3

Cited by 30 publications

(9 citation statements)

References 7 publications

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“…Another method is the additive which is mixed with ammonia solution to reform the properties of absorption liquid. Many organic additives were applied in the researches to obtain certain inhibitory effects, while degradation due to oxidation could not be ignored (Ma et al, 2011;Pellegrini et al, 2010;Seo et al, 2012;Shuangchen et al, 2013a). Some metal ions were studied to control ammonia escape.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the effect of Ni(II) additive on ammonia escape in CO2 capture using ammonia solution

Chen

Han

et al. 2015

International Journal of Greenhouse Gas Control

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Section: Introductionmentioning

confidence: 99%

Experimental study on the effect of Ni(II) additive on ammonia escape in CO2 capture using ammonia solution

Chen

Han

et al. 2015

International Journal of Greenhouse Gas Control

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“…With regard to ammonia loss, many chemicals have been tested as additives to suppress ammonia vaporization. Seo et al . introduced ethylene glycol, glycerol, and glycine as additives to ammonia solutions and suggested glycerol as an effective additive.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on CO₂ absorption by aqueous ammonia solution at elevated pressure to enhance CO₂ absorption and suppress ammonia vaporization

Xiang

Xia

et al. 2014

Greenhouse Gases

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The low CO2 absorption rate and high ammonia volatile loss rate are two major issues for the ammonia‐based CO2 capture technology. In this work, we investigated the effect of total pressure on CO2 absorption and ammonia vaporization in ammonia solutions on a wetted‑wall column. We found that the elevated pressure absorption process was an effective way to increase CO2 absorption rate and suppress ammonia vaporization at the same time. We also studied the mass transfer mechanism at elevated pressure and found the overall mass transfer coefficients of CO2 absorption in both ammonia and MEA solutions at elevated pressures were lower than that under atmospheric pressure. The overall mass transfer coefficients of CO2 absorption in 3 M NH3 (298 K) at 1, 1.5, 2, 2.5 bar were 0.723 × 10−6, 0.652 × 10−6, 0.591 × 10−6, 0.555 × 10−6 mol/(s m2 Pa) and the corresponding gas side mass transfer coefficients were 13.8 × 10−6, 4.52 × 10−6, 2.61 × 10−6, 2.03 × 10−6 mol/(s m2 Pa), respectively. We also found the gas side mass transfer coefficient in the wetted‐wall column was not only dependent on the hydrodynamic conditions of the column but also influenced by the total pressure. © 2014 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…The intermolecular interactions between the additives and ammonia/or CO 2 are proposed to be responsible for the reduction of ammonia loss and enhancement of CO 2 capture. Seo et al . studied vaporization reduction characteristics of aqueous ammonia solutions by the addition of ethylene glycol, glycerol, and glycine to the CO 2 absorption process.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on suppression of ammonia vaporization by additives

Zhuo

Wang

2013

Greenhouse Gas Sci Technol

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Aqueous ammonia (NH3) based CO2 capture process has been regarded as a promising technology to capture CO2 from many industrial sources including coal‐fired power stations. However, this technology has been limited by the high volatility of ammonia and its relatively low reaction rate with carbon dioxide. This study selected nine kinds of chemicals and added them into ammonia solution as additives to investigate their potential to suppress ammonia vaporization. A wetted‐wall column reactor was used to study the effect of additives on ammonia loss rate and overall gas mass transfer coefficient of CO2 at the absorption temperature of 15°C and solution of 3 M (mol/L) aqueous ammonia. Among all additives tested, Sulfolane (TMS) and Propylene carbonate (PC) showed the highest potential to suppress ammonia vaporization and enhance the reaction at the same time. The best scenario in this study was the addition of 0.3 M PC to 3 M aqueous ammonia under the CO2 loading of 0.4 which led to a reduction of ammonia loss by 38% and an increase of overall gas mass transfer coefficient by 10% compared to the case of no additive. © 2013 Society of Chemical Industry and John Wiley & Sons, Ltd

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Vaporization reduction characteristics of aqueous ammonia solutions by the addition of ethylene glycol, glycerol and glycine to the CO2 absorption process

Cited by 30 publications

References 7 publications

Experimental study on the effect of Ni(II) additive on ammonia escape in CO2 capture using ammonia solution

Experimental study on the effect of Ni(II) additive on ammonia escape in CO2 capture using ammonia solution

Experimental study on CO₂ absorption by aqueous ammonia solution at elevated pressure to enhance CO₂ absorption and suppress ammonia vaporization

Experimental studies on suppression of ammonia vaporization by additives

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Vaporization reduction characteristics of aqueous ammonia solutions by the addition of ethylene glycol, glycerol and glycine to the CO2 absorption process

Cited by 30 publications

References 7 publications

Experimental study on the effect of Ni(II) additive on ammonia escape in CO2 capture using ammonia solution

Experimental study on the effect of Ni(II) additive on ammonia escape in CO2 capture using ammonia solution

Experimental study on CO2 absorption by aqueous ammonia solution at elevated pressure to enhance CO2 absorption and suppress ammonia vaporization

Experimental studies on suppression of ammonia vaporization by additives

Contact Info

Product

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Experimental study on CO₂ absorption by aqueous ammonia solution at elevated pressure to enhance CO₂ absorption and suppress ammonia vaporization