Simultaneous absorption of H/sub 2/S and CO/sub 2/ in aqueous MDEA. [Methyldiethanolamine]
Abstract
In the simultaneous absorption of two gases in a reactive liquid, the rates of absorption of both gases are affected by their competition for the same reactive reagent. The case of absorption of two gases into a reactive liquid where one reacts under second order reaction kinetics while the other reacts instantaneously is of practical interest, since this case represents the absorption of CO/sub 2/ and H/sub 2/S into amine solutions. The rates of absorption were modeled according to the penetration theory. The model equations consisting of a system of nonlinear differential equations with a moving boundary were solved numerically. The theoretical model was applied to a description of the selective absorption of H/sub 2/S in diethanolamine solution in the presence of CO/sub 2/. The simultaneous absorption of H/sub 2/S and CO/sub 2/ gases into MDEA was studied experimentally using a stirred gas liquid absorber. This case was modeled theoretically assuming one of the gases CO/sub 2/ undergoes a second order reaction condition with the solution while the other gas, H/sub 2/S is entirely gas film controlled. The kinetics of the reaction between both gases and MDEA was studied. Unavailable physical properties such as diffusivities and solubilities of different speciesmore »
- Authors:
- Publication Date:
- Research Org.:
- California Univ., Santa Barbara (USA)
- OSTI Identifier:
- 6000827
- Resource Type:
- Thesis/Dissertation
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 03 NATURAL GAS; 01 COAL, LIGNITE, AND PEAT; AMINES; SORPTIVE PROPERTIES; CARBON DIOXIDE; ABSORPTION; HYDROGEN SULFIDES; DESULFURIZATION; GASES; KINETIC EQUATIONS; PHYSICAL PROPERTIES; PURIFICATION; REACTION KINETICS; SOLUBILITY; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; EQUATIONS; FLUIDS; HYDROGEN COMPOUNDS; KINETICS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SULFIDES; SULFUR COMPOUNDS; SURFACE PROPERTIES; 030300* - Natural Gas- Drilling, Production, & Processing; 010402 - Coal, Lignite, & Peat- Purification & Upgrading
Citation Formats
Khalil, N M. Simultaneous absorption of H/sub 2/S and CO/sub 2/ in aqueous MDEA. [Methyldiethanolamine]. United States: N. p., 1984.
Web.
Khalil, N M. Simultaneous absorption of H/sub 2/S and CO/sub 2/ in aqueous MDEA. [Methyldiethanolamine]. United States.
Khalil, N M. 1984.
"Simultaneous absorption of H/sub 2/S and CO/sub 2/ in aqueous MDEA. [Methyldiethanolamine]". United States.
@article{osti_6000827,
title = {Simultaneous absorption of H/sub 2/S and CO/sub 2/ in aqueous MDEA. [Methyldiethanolamine]},
author = {Khalil, N M},
abstractNote = {In the simultaneous absorption of two gases in a reactive liquid, the rates of absorption of both gases are affected by their competition for the same reactive reagent. The case of absorption of two gases into a reactive liquid where one reacts under second order reaction kinetics while the other reacts instantaneously is of practical interest, since this case represents the absorption of CO/sub 2/ and H/sub 2/S into amine solutions. The rates of absorption were modeled according to the penetration theory. The model equations consisting of a system of nonlinear differential equations with a moving boundary were solved numerically. The theoretical model was applied to a description of the selective absorption of H/sub 2/S in diethanolamine solution in the presence of CO/sub 2/. The simultaneous absorption of H/sub 2/S and CO/sub 2/ gases into MDEA was studied experimentally using a stirred gas liquid absorber. This case was modeled theoretically assuming one of the gases CO/sub 2/ undergoes a second order reaction condition with the solution while the other gas, H/sub 2/S is entirely gas film controlled. The kinetics of the reaction between both gases and MDEA was studied. Unavailable physical properties such as diffusivities and solubilities of different species were measured experimentally using laminar jet apparatus.},
doi = {},
url = {https://www.osti.gov/biblio/6000827},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1984},
month = {Sun Jan 01 00:00:00 EST 1984}
}