Absorption of CO 2  by aqueous diethanolamine (DEA) solutions in a high shear jet absorber | Zendy

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

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Absorption of CO 2 by aqueous diethanolamine (DEA) solutions in a high shear jet absorber

Author(s) -

Chakma A.,

Chornet E.,

Overend R. P.,

Dawson W. H.

Publication year - 1990

Publication title -

the canadian journal of chemical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 67

eISSN - 1939-019X

pISSN - 0008-4034

DOI - 10.1002/cjce.5450680409

Subject(s) - diethanolamine , aqueous solution , nozzle , volumetric flow rate , analytical chemistry (journal) , absorption capacity , materials science , absorption (acoustics) , shear (geology) , mass transfer coefficient , absorption rate , chemistry , jet (fluid) , mass transfer , thermodynamics , chromatography , composite material , chemical engineering , physics , engineering , organic chemistry

CO 2 diluted with N 2 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. CO 2 removal expressed by moles of CO 2 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 CO 2 partial pressure was found to decrease K g a.

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