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Dynamic coupling of mass transfer and chemical reaction for Taylor flow along a serpentine microchannel

Dynamic coupling of mass transfer and chemical reaction for Taylor flow along a serpentine microchannel
Dynamic coupling of mass transfer and chemical reaction for Taylor flow along a serpentine microchannel
The characteristics of multiphase dynamic mass transfer play a big role in gaining understanding and controllability of gas–liquid two-phase chemical absorption processes. In the present work, dynamic coupling of mass transfer and chemical reaction for Taylor flow in a serpentine microchannel was investigated by an online method. The dynamic changes of gas bubbles, key mass transfer parameters, i.e., kLa, kL, and a, and the enhancement factor were measured and calculated, where the three changing stages were found under different operating conditions of QG (2–5.5 mL), QL (1–2.5 mL), and WMEA (1–3 wt %). On the basis of the experimental results, a modified van Baten’s model was proposed to predict mass transfer performance for both CO2–H2O and CO2–MEA systems, and the correlation coefficients were 0.95 and 0.96, respectively. The correlations also suggested the net physical mass transfer performance in CO2–MEA system could be reasonably separated from the chemical absorption process.
0888-5885
9279-9292
Zhou, Yufei
b8ec69d1-e371-42c2-8bb5-1e0ce507f258
Yao, Chaoqun
cc3a5762-0118-421f-90d0-f09185ca3ded
Zhang, Peng
3b7dc273-0330-4b17-91a5-0075836e098d
Zhang, Xunli
d7cf1181-3276-4da1-9150-e212b333abb1
Lü, Hongying
6566c145-2b3d-4033-90f1-33e678ea78cf
Zhao, Yuchao
0b5eafdf-0011-4a02-840f-e5b88b61a708
Zhou, Yufei
b8ec69d1-e371-42c2-8bb5-1e0ce507f258
Yao, Chaoqun
cc3a5762-0118-421f-90d0-f09185ca3ded
Zhang, Peng
3b7dc273-0330-4b17-91a5-0075836e098d
Zhang, Xunli
d7cf1181-3276-4da1-9150-e212b333abb1
Lü, Hongying
6566c145-2b3d-4033-90f1-33e678ea78cf
Zhao, Yuchao
0b5eafdf-0011-4a02-840f-e5b88b61a708

Zhou, Yufei, Yao, Chaoqun, Zhang, Peng, Zhang, Xunli, Lü, Hongying and Zhao, Yuchao (2020) Dynamic coupling of mass transfer and chemical reaction for Taylor flow along a serpentine microchannel. Industrial & Engineering Chemistry Research, 59 (19), 9279-9292. (doi:10.1021/acs.iecr.0c00014).

Record type: Article

Abstract

The characteristics of multiphase dynamic mass transfer play a big role in gaining understanding and controllability of gas–liquid two-phase chemical absorption processes. In the present work, dynamic coupling of mass transfer and chemical reaction for Taylor flow in a serpentine microchannel was investigated by an online method. The dynamic changes of gas bubbles, key mass transfer parameters, i.e., kLa, kL, and a, and the enhancement factor were measured and calculated, where the three changing stages were found under different operating conditions of QG (2–5.5 mL), QL (1–2.5 mL), and WMEA (1–3 wt %). On the basis of the experimental results, a modified van Baten’s model was proposed to predict mass transfer performance for both CO2–H2O and CO2–MEA systems, and the correlation coefficients were 0.95 and 0.96, respectively. The correlations also suggested the net physical mass transfer performance in CO2–MEA system could be reasonably separated from the chemical absorption process.

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ie-2020-00014t.R4_Proof_hi - Accepted Manuscript
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More information

Accepted/In Press date: 21 April 2020
e-pub ahead of print date: 21 April 2020

Identifiers

Local EPrints ID: 441341
URI: http://eprints.soton.ac.uk/id/eprint/441341
ISSN: 0888-5885
PURE UUID: 9a525623-0fba-4480-b648-ae97f03f3d1a
ORCID for Xunli Zhang: ORCID iD orcid.org/0000-0002-4375-1571

Catalogue record

Date deposited: 10 Jun 2020 16:30
Last modified: 10 Jan 2022 06:26

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Contributors

Author: Yufei Zhou
Author: Chaoqun Yao
Author: Peng Zhang
Author: Xunli Zhang ORCID iD
Author: Hongying Lü
Author: Yuchao Zhao

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