A rate-based model for the design of gas absorbers for the removal of CO2 and H2S using aqueous solutions of MEA and DEA

Nadhir A. Al-Baghli; Steven A. Pruess; Victor F. Yesavage; M. Sami Selim

doi:10.1016/S0378-3812(01)00454-X

A rate-based model for the design of gas absorbers for the removal of CO₂ and H₂S using aqueous solutions of MEA and DEA

Nadhir A. Al-Baghli
, Steven A. Pruess
, Victor F. Yesavage^*
, M. Sami Selim

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

94 Scopus citations

Abstract

A rate-based model was developed for the design of acid gas absorbers using aqueous alkanolamine solutions. The model adopts the film theory and assumes that thermodynamic equilibrium among the reacting species exists in the bulk liquid. The diffusion-reaction equations for the reacting species in the liquid film are solved using collocation techniques. Heat effects accompanying diffusion and reaction are accounted for using appropriate heat balances on each tray. The algorithm adopts a plate-by-plate calculation starting at the bottom of the tower. Tray hydraulics was added to the algorithm to ensure proper operation of the tower. The program was developed to handle either monoethanolamine (MEA) or diethanolamine (DEA) as chemical solvents.

Original language	English
Pages (from-to)	31-43
Number of pages	13
Journal	Fluid Phase Equilibria
Volume	185
Issue number	1-2
DOIs	https://doi.org/10.1016/S0378-3812(01)00454-X
State	Published - 30 Jul 2001
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 13 Climate Action

Keywords

Absorption of acid gases
Alkanolamines
Carbon dioxide
Design of absorption towers
Hydrogen sulfide

ASJC Scopus subject areas

General Chemical Engineering
General Physics and Astronomy
Physical and Theoretical Chemistry

Access to Document

10.1016/S0378-3812(01)00454-X

Cite this

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title = "A rate-based model for the design of gas absorbers for the removal of CO2 and H2S using aqueous solutions of MEA and DEA",

abstract = "A rate-based model was developed for the design of acid gas absorbers using aqueous alkanolamine solutions. The model adopts the film theory and assumes that thermodynamic equilibrium among the reacting species exists in the bulk liquid. The diffusion-reaction equations for the reacting species in the liquid film are solved using collocation techniques. Heat effects accompanying diffusion and reaction are accounted for using appropriate heat balances on each tray. The algorithm adopts a plate-by-plate calculation starting at the bottom of the tower. Tray hydraulics was added to the algorithm to ensure proper operation of the tower. The program was developed to handle either monoethanolamine (MEA) or diethanolamine (DEA) as chemical solvents.",

keywords = "Absorption of acid gases, Alkanolamines, Carbon dioxide, Design of absorption towers, Hydrogen sulfide",

author = "Al-Baghli, \{Nadhir A.\} and Pruess, \{Steven A.\} and Yesavage, \{Victor F.\} and Selim, \{M. Sami\}",

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T1 - A rate-based model for the design of gas absorbers for the removal of CO2 and H2S using aqueous solutions of MEA and DEA

AU - Al-Baghli, Nadhir A.

AU - Pruess, Steven A.

AU - Yesavage, Victor F.

AU - Selim, M. Sami

PY - 2001/7/30

Y1 - 2001/7/30

N2 - A rate-based model was developed for the design of acid gas absorbers using aqueous alkanolamine solutions. The model adopts the film theory and assumes that thermodynamic equilibrium among the reacting species exists in the bulk liquid. The diffusion-reaction equations for the reacting species in the liquid film are solved using collocation techniques. Heat effects accompanying diffusion and reaction are accounted for using appropriate heat balances on each tray. The algorithm adopts a plate-by-plate calculation starting at the bottom of the tower. Tray hydraulics was added to the algorithm to ensure proper operation of the tower. The program was developed to handle either monoethanolamine (MEA) or diethanolamine (DEA) as chemical solvents.

AB - A rate-based model was developed for the design of acid gas absorbers using aqueous alkanolamine solutions. The model adopts the film theory and assumes that thermodynamic equilibrium among the reacting species exists in the bulk liquid. The diffusion-reaction equations for the reacting species in the liquid film are solved using collocation techniques. Heat effects accompanying diffusion and reaction are accounted for using appropriate heat balances on each tray. The algorithm adopts a plate-by-plate calculation starting at the bottom of the tower. Tray hydraulics was added to the algorithm to ensure proper operation of the tower. The program was developed to handle either monoethanolamine (MEA) or diethanolamine (DEA) as chemical solvents.

KW - Absorption of acid gases

KW - Alkanolamines

KW - Carbon dioxide

KW - Design of absorption towers

KW - Hydrogen sulfide

UR - https://www.scopus.com/pages/publications/0035973733

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DO - 10.1016/S0378-3812(01)00454-X

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