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Automated measurements of gas‐liquid mass transfer in micropacked bed reactors
Author(s) -
Zhang Jisong,
Teixeira Andrew R.,
Jensen Klavs F.
Publication year - 2018
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.15941
Subject(s) - mass transfer , diethanolamine , chemistry , absorption (acoustics) , packed bed , analytical chemistry (journal) , trickle bed reactor , mass transfer coefficient , range (aeronautics) , materials science , chromatography , catalysis , organic chemistry , composite material
Gas‐liquid mass transfer in micropacked bed reactors is characterized with an automated platform integrated with in‐line Fourier transform infrared spectroscopy. This setup enables screening of a multidimensional parameter space underlying absorption with chemical reaction. Volumetric gas‐liquid mass‐transfer coefficients (k L a) are determined for the model reaction of CO 2 absorption in a methyl diethanolamine/water solution. Parametric studies are conducted varying gas and liquid superficial velocities, packed bed dimensions and packing particle sizes. The results show that k L a values are in the range of 0.12∼0.39 s −1 , which is about one‐to‐two orders of magnitude larger than those of conventional trickle beds. An empirical correlation predicts k L a in micropacked bed reactors in good agreement with experimental data . © 2017 American Institute of Chemical Engineers AIChE J , 64: 564–570, 2018