Selective Absorption of Hydrogen Sulfide from Gas Streams

Frazier, H.D.; Kohl, Arthur L.

doi:10.1021/ie50491a032

Cited by 57 publications

(41 citation statements)

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“…In absorption processes, it might be advantageous to remove H 2 S selectively from the CO 2 /H 2 S mixture in the gas stream [3,4]. This owes to the fact that the absorbed H 2 S is often used as the feed to the Claus sulfur recovery plants or the feed for synthesis of sulfur containing products such as sulfuric acid, and hence, the presence of CO 2 deteriorates the by-product synthesis processes [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…This owes to the fact that the absorbed H 2 S is often used as the feed to the Claus sulfur recovery plants or the feed for synthesis of sulfur containing products such as sulfuric acid, and hence, the presence of CO 2 deteriorates the by-product synthesis processes [3,4]. For H 2 S selective removal, MDEA is advantageous over other amines due to its ability to selectively remove H 2 S from gas streams [3,4].…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

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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“…Methyldiethanolamine (MDEA) is one of the industrially important alkanolamines used for this purpose. The use of MDEA solutions was first described by Frazier and Kohl [1]. Being a tertiary alkanolamine, MDEA is characterized by a slow reaction rate with CO 2 compared with primary and secondary amines.…”

Section: Introductionmentioning

confidence: 99%

Effect of Piperazine on CO₂Loading in Aqueous Solutions of MDEA at Low Pressure

Ali

Aroua

2004

International Journal of Thermophysics

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Solubilities of CO 2 in aqueous solutions of activated methyldiethanolamine (MDEA) has been investigated for temperatures and CO 2 partial pressures ranging from 40 to 80 • C and 0.1 to 100 kPa, respectively. Piperazine (PZ) is used as activator, with a concentration ranging from 0.01 to 0.1 M, keeping the amine total concentration in the aqueous solution at 2 M. The experimental solubility results were represented by the mole ratio of CO 2 per activated amine present in the liquid mixture. The addition of piperazine, as activator for MDEA, increased the solubility of CO 2 in the region of low CO 2 partial pressure compared to pure MDEA. The CO 2 loading increased with decreasing temperature, increasing CO 2 partial pressure, and increasing PZ concentration.

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“…Methyldiethanolamine (MDEA) solutions have many advantages: they are selective for the removal of H2S, the enthalpy of reaction is lower and the vapor pressure of the solution is lower than primary and secondary alkanolamines like monoethanolamine or diethanolamine. The use of MDEA solutions was first proposed by Frazier and Kohl (1950), but the cost of MDEA made its use uneconomical for many years. There have been a number of investigations of the solubility of CO, and H,S individually in MDEA solutions; however, only a few papers have reported the solubility of mixtures of CO, and H,S in MDEA solutions.…”

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The solubility of mixtures of H₂S and CO₂ in an mdea solution

Jou¹,

Otto²,

Mather³

1997

Can J Chem Eng

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The solubility of mixtures of hydrogen sulfide and carbon dioxide in a 50 mass per cent aqueous solution of methyldiethanolamine (MDEA) solution has been measured at 40°, 70" and 100°C. Partial pressures of the acid gases ranged from 0.08 to 10 450 kPa.La solubilite d'un melange de sulfure d'hydrogene et de dioxyde de carbone dans une solution aqueuse de methyldiethanolamine (50% en poids) a ete mesuree a 40°, 70" et 100°C, pour une pression partielle en gaz acide variant entre 0,OS et 10 450 kPa.

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Selective Absorption of Hydrogen Sulfide from Gas Streams

Cited by 57 publications

References 2 publications

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

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

Effect of Piperazine on CO₂Loading in Aqueous Solutions of MDEA at Low Pressure

The solubility of mixtures of H₂S and CO₂ in an mdea solution

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Selective Absorption of Hydrogen Sulfide from Gas Streams

Cited by 57 publications

References 2 publications

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

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

Effect of Piperazine on CO2Loading in Aqueous Solutions of MDEA at Low Pressure

The solubility of mixtures of H2S and CO2 in an mdea solution

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Effect of Piperazine on CO₂Loading in Aqueous Solutions of MDEA at Low Pressure

The solubility of mixtures of H₂S and CO₂ in an mdea solution