Absorption of CO2 by aqueous diethanolamine (DEA) solutions in a high shear jet absorber

A. Chakma; E. Chornet; R. P. Overend; W. H. Dawson

doi:10.1002/cjce.5450680409

Absorption of CO₂ by aqueous diethanolamine (DEA) solutions in a high shear jet absorber

A. Chakma, E. Chornet, R. P. Overend, W. H. Dawson

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

7 Citations (Scopus)

Abstract

CO₂ diluted with N₂ was absorbed by aqueous DEA solutions in a high shear jet absorber consisting of a high pressure stainless steel vessel with a pressure nozzle at the top. The results show that equilibrium conditions can be rapidly reached under high shear conditions. CO₂ removal expressed by moles of CO₂ absorbed per mole of DEA increased with gas flow rate and decreased with liquid flow rate. The overall mass transfer capacity coefficient K_g a was found to increase with gas flow rate and solution concentration. K_g a went through a maximum with solution flow rate. Increasing the CO₂ partial pressure was found to decrease K_g a.

Original language	English
Pages (from-to)	592-598
Number of pages	7
Journal	The Canadian Journal of Chemical Engineering
Volume	68
Issue number	4
DOIs	https://doi.org/10.1002/cjce.5450680409
Publication status	Published - Aug 1990
Externally published	Yes

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title = "Absorption of CO2 by aqueous diethanolamine (DEA) solutions in a high shear jet absorber",

abstract = "CO2 diluted with N2 was absorbed by aqueous DEA solutions in a high shear jet absorber consisting of a high pressure stainless steel vessel with a pressure nozzle at the top. The results show that equilibrium conditions can be rapidly reached under high shear conditions. CO2 removal expressed by moles of CO2 absorbed per mole of DEA increased with gas flow rate and decreased with liquid flow rate. The overall mass transfer capacity coefficient Kg a was found to increase with gas flow rate and solution concentration. Kg a went through a maximum with solution flow rate. Increasing the CO2 partial pressure was found to decrease Kg a.",

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AU - Chakma, A.

AU - Chornet, E.

AU - Overend, R. P.

AU - Dawson, W. H.

PY - 1990/8

Y1 - 1990/8

N2 - CO2 diluted with N2 was absorbed by aqueous DEA solutions in a high shear jet absorber consisting of a high pressure stainless steel vessel with a pressure nozzle at the top. The results show that equilibrium conditions can be rapidly reached under high shear conditions. CO2 removal expressed by moles of CO2 absorbed per mole of DEA increased with gas flow rate and decreased with liquid flow rate. The overall mass transfer capacity coefficient Kg a was found to increase with gas flow rate and solution concentration. Kg a went through a maximum with solution flow rate. Increasing the CO2 partial pressure was found to decrease Kg a.

AB - CO2 diluted with N2 was absorbed by aqueous DEA solutions in a high shear jet absorber consisting of a high pressure stainless steel vessel with a pressure nozzle at the top. The results show that equilibrium conditions can be rapidly reached under high shear conditions. CO2 removal expressed by moles of CO2 absorbed per mole of DEA increased with gas flow rate and decreased with liquid flow rate. The overall mass transfer capacity coefficient Kg a was found to increase with gas flow rate and solution concentration. Kg a went through a maximum with solution flow rate. Increasing the CO2 partial pressure was found to decrease Kg a.

KW - absorption of CO

KW - CO removal

KW - DEA absorbent

KW - shear jet absorber

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JO - The Canadian Journal of Chemical Engineering

JF - The Canadian Journal of Chemical Engineering

IS - 4

ER -

Absorption of CO₂ by aqueous diethanolamine (DEA) solutions in a high shear jet absorber

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