The solubility of carbon dioxide and hydrogen sulfide in a 35 wt% aqueous solution of methyldiethanolamine

Jou, Fang‐Yuan; Carroll, John J.; Mather, Alan E.; Otto, Frederick D.

doi:10.1002/cjce.5450710213

Cited by 100 publications

(81 citation statements)

References 13 publications

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“…• Data of Jou et al (1993) in 50 wt % MDEA were not consistent at loadings below 0.05. The trend of a log-log graph of the liquid loading versus H 2 S partial pressure at low loadings should be almost linear and this was not the case for the data of Jou et al (1993).…”

Section: Binary Ionic Interaction Parameters 351 Ionic Interaction mentioning

confidence: 94%

“…The trend of a log-log graph of the liquid loading versus H 2 S partial pressure at low loadings should be almost linear and this was not the case for the data of Jou et al (1993). There was also a mutual inconsistency seen when Jou's experimental data were compared with experimental data of Lemoine at al.…”

Section: Binary Ionic Interaction Parameters 351 Ionic Interaction mentioning

confidence: 98%

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The solubility of hydrogen sulfide in aqueous N-methyldiethanolamine solutions

Huttenhuis¹,

Agrawal²,

Versteeg³

2008

IJOGCT

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Abstract:In this work the electrolyte equation of state as developed previously for the system MDEA-H 2 O-CO 2 -CH 4 [Huttenhuis et al. (2008), pp.99-112] was further developed for the system MDEA-H 2 O-H 2 S-CH 4 . With this thermodynamic equilibrium model the total solubility of hydrogen sulfide and the speciation in aqueous solutions of N-methyldiethanolamine can be described quantitatively. The model results were compared to experimental H 2 S solubility data in aqueous MDEA in absence and presence of methane respectively. The application of equation of state models for this kind of acid gas -amine systems is a rather new development in the literature. An accurate description is difficult for this kind of complex systems with significant amount of both molecular and ionic species present in the liquid phase. The Schwarzentruber's modification of the Redlich-Kwong-Soave EOS with a Huron-Vidal mixing rule is used as molecular part of the equation of state and ionic interactions terms are added to account for non-idealities caused by these interactions. With the new developed model a comparison with experimental data as presented was made.

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Section: Binary Ionic Interaction Parameters 351 Ionic Interaction mentioning

confidence: 94%

Section: Binary Ionic Interaction Parameters 351 Ionic Interaction mentioning

confidence: 98%

The solubility of hydrogen sulfide in aqueous N-methyldiethanolamine solutions

Huttenhuis¹,

Agrawal²,

Versteeg³

2008

IJOGCT

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show abstract

“…The data provided by Jou et al [46] and [47] were also omitted from the regression data base due to questionable reliability and also the large deviation from the optimized model (AARD% of 82 and 66, respectively). At 40 C and a MDEA wt% of 50, especially at low pressures, data of Jou et al [46] and [47], deviate from each other and also from Huang and Ng [40] data.…”

Section: Ternary H 2 S-mdea-h 2 O Systemmentioning

confidence: 99%

Thermodynamic modeling of hydrogen sulfide absorption by aqueous N-methyldiethanolamine using the Extended UNIQUAC model

Sadegh

Stenby

Thomsen

2015

Fluid Phase Equilibria

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“…And the speed is displayed on the screen of revolution counter. The absorption temperature is measured by a mercurial thermometer (8) with a sensitivity of 0.1°C, which is adjusted by the constant temperature circulating water (14), (15) with a water thermostat. The pressure difference was determined by a glass U-tube manometer (18) with the minimum resolution of 0.1 mmHg (0.013 kPa).…”

Section: Apparatus and Experimental Methodsmentioning

confidence: 99%

“…Ordinarily, the known variables are the temperature T, concentration of hydrogen sulfide in the liquid phase x H 2 S , initial molar quantity of solvent components, like MEA, MDEA, PZ and water, by solving the equation set of Eqs. (9)(10)(11)(12)(13)(14), as well as Eq. (16) …”

Section: Calculation Proceduresmentioning

confidence: 99%

Influence of MEA and piperazine additives on the desulfurization ability of MDEA aqueous for natural gas purification

Shi

Shan

et al. 2016

Int J Ind Chem

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The influence of monoethanolamine (MEA) and piperazine added into methyldiethanolamine (MDEA) aqueous solution on the desulfurization of natural gas was investigated by the method of equilibrium data determination in this paper. Four kinds of equilibrated systems, i.e. H 2 S-NG-MEA-water, H 2 S-NG-MDEA-water, H 2 S-NG-(MEA-MDEA)-water, H 2 S-NG-(MEA-MDEA-PZ)-water at the temperature ranging from 298.15 to 333.15 K were measured in a glass-jacketed gas absorption cell with a double-drive impeller device. The results show that the H 2 S partial pressure increases with the increase of H 2 S loading in liquid phase along an isotherm. The addition of MEA and PZ is beneficial for improving the desulfuration ability of MDEA. The ability of H 2 S absorption for the four mixed alkanolamine systems is MEA [ (MEA-MDEA-PZ) [ (MEA-MDEA) [ MDEA according to the order of size. The four equilibrium data can be well correlated with the Soave-Redlich-Kwong equation of state and electrolyte-NRTL activity coefficient model. The overall mean relative errors of total pressure and H 2 S partial pressure between the calculated and experimental data of the four systems are 3.30 and 3.07 %, respectively. The experimental and calculated results are very useful for desulfuration and purification process of natural gas or other industrial gases.

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The solubility of carbon dioxide and hydrogen sulfide in a 35 wt% aqueous solution of methyldiethanolamine

Cited by 100 publications

References 13 publications

The solubility of hydrogen sulfide in aqueous N-methyldiethanolamine solutions

The solubility of hydrogen sulfide in aqueous N-methyldiethanolamine solutions

Thermodynamic modeling of hydrogen sulfide absorption by aqueous N-methyldiethanolamine using the Extended UNIQUAC model

Influence of MEA and piperazine additives on the desulfurization ability of MDEA aqueous for natural gas purification

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