Physicochemical properties important for carbon dioxide absorption in aqueous methyldiethanolamine

Al-Ghawas, Hani A.; Hagewiesche, Daniel P.; Ruiz-Ibanez, Gabriel; Sandall, Orville C.

doi:10.1021/je00058a004

Cited by 268 publications

(330 citation statements)

References 12 publications

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“…Due to the chemical reaction that occurs in the solution, the physical solubility of carbon dioxide in alkanolamine solutions cannot be measured using conventional methods (Browning and Weiland, 1994).Therefore, it must be estimated from experimental data reported to systems that are similar, i.e., non-reacting gases. In view of the similarities with regard to configuration, molecular volume, and electronic structure, N 2 O is often used as a non-reacting gas to estimate the properties of CO 2 (Sada et al, 1978;Haimour and Sandall, 1984;Versteeg and van Swaaij, 1988;Al-Ghawas et al, 1989;Littel et al, 1992). Therefore, the Henry's constant of CO 2 is expressed as the following form, respectively.…”

Section: 40mentioning

confidence: 99%

Dynamic simulation of MEA absorption process for CO2 capture from power plants

Harun

Nittaya

Douglas

et al. 2012

International Journal of Greenhouse Gas Control

119

117

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Section: 40mentioning

confidence: 99%

Dynamic simulation of MEA absorption process for CO2 capture from power plants

Harun

Nittaya

Douglas

et al. 2012

International Journal of Greenhouse Gas Control

119

117

View full text Add to dashboard Cite

“…The apparatus validation of this study was performed using water as solvent at 303.15-323.15 K. The validation was based on the previous studies by Versteeg and Swaaij [20], Li and Lai [21], and Al-Ghawas, et al [15]. Validation of the apparatus has been done in our previous study [16].…”

Section: Resultsmentioning

confidence: 99%

“…The apparatus used in this study was based on the apparatus used by Haimour and Sandall [10] and Al-Ghawas, et al [15]. It has been described and validated in our previous study [16].…”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

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CO2 Solubility in Electrolyte Solution of Potassium Carbonate with the Addition of Promotor Amines (MDEA-DEA/ PZ-DEA) at Various Temperatures

Altway

Kuswandi

Zulfetra

et al. 2016

J. Eng. Technol. Sci.

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Abstract. Carbon dioxide has a huge impact on the increase of greenhouse gas formation causing global warming and climate change. The most effective method to capture CO 2 is chemical absorption using potassium carbonate (K 2 CO 3 ) solution and amines as additive to enhance the absorption rate. CO 2 solubilities in 30% of K 2 CO 3 and 5% of the total composition of mixed methyldiethanolamine (MDEA)-diethanolamine (DEA) / piperazine (PZ)-DEA solutions at various temperatures of 303.15-323.15 K and atmospheric pressure are reported. The solubility data were measured using an equilibrium cell apparatus with the N 2 O analogy method. The E-NRTL model was used to correlate the experimental data accurately. The binary interaction parameters of the model for the CO 2 -K 2 CO 3 -MDEA-DEA-H 2 O and CO 2 -K 2 CO 3 -PZ-DEA-H 2 O systems were obtained. The CO 2 physical solubility in 30% of K 2 CO 3 , 5% of PZ, and 0% of DEA at 303.15 K had the highest value, while the Henry constant of CO 2 in this solution had the lowest value. The CO 2 loading increased with increasing partial pressure of CO 2 , while the CO 2 solubility decreased with increasing temperature. Any increase in MDEA concentration from 0% to 5% enhanced the CO 2 partial pressure, otherwise, an increase in PZ concentration from 0% to 5% decreased the CO 2 partial pressure.

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“…Table 1. Note: the densities and viscosity data are from Al-Ghawas et al [21]; the diffusion and solubility data are from Rinker [22,23] and Posey [24]. It is known that when H 2 S is introduced into an aqueous MDEA tertiatry amine solution, it dissociates into the bisulphide ion, HS − , by a proton-transfer reaction:…”

Section: Methodsmentioning

confidence: 99%

Experimental Study on Removal of H2S using MDEA Solution in Microchannel

Ji¹,

Zhang²,

Wei³

et al. 2016

Proceedings of the 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016)

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Abstract. Hydrogen sulfide is highly toxic and corrosive component of natural gas that must be removed before natural gas is used in industrial applications. Currently, absorption methods using aqueous solutions of methyl diethanolamine are most commonly employed to remove hydrogen sulfide from natural gas feedstocks. A process analysis of H 2 S absorption in a microchannel is explored in this work. The results indicate that the bubbles formed at the gas-liquid interface are not consistent in size. The gas bubbles become significantly smaller in volume within 2 seconds of gas flow. There is a noticeable difference in the rate of change in bubble volume for solutions with 20 vol% and 40 vol% MDEA solution. There is also a 3.8% -5.3% volume change within 0.6 s when 60 vol%, 80 vol%, and 100 vol% solutions of MDEA are used. From these experiments, the overall mass transfer coefficient for H 2 S was calculated and it was found that the overall mass transfer coefficients L ka increases with increasing MDEA content.

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Physicochemical properties important for carbon dioxide absorption in aqueous methyldiethanolamine

Cited by 268 publications

References 12 publications

Dynamic simulation of MEA absorption process for CO2 capture from power plants

Dynamic simulation of MEA absorption process for CO2 capture from power plants

CO2 Solubility in Electrolyte Solution of Potassium Carbonate with the Addition of Promotor Amines (MDEA-DEA/ PZ-DEA) at Various Temperatures

Experimental Study on Removal of H2S using MDEA Solution in Microchannel

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