eprintid: 9333
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/93/33
datestamp: 2023-11-09 16:21:18
lastmod: 2023-11-09 16:21:18
status_changed: 2023-11-09 16:14:52
type: article
metadata_visibility: show
creators_name: Tay, W.H.
creators_name: Lau, K.K.
creators_name: Shariff, A.M.
title: High frequency ultrasonic-assisted chemical absorption of CO2 using monoethanolamine (MEA)
ispublished: pub
keywords: Carbon dioxide; Irradiation; Mass transfer, Chemical absorption; CO2 absorption; Convective dynamics; Enhancement effects; Gas liquids; High frequency HF; Monoethanolamine solvent; Ultrasound irradiation, Ethanolamines
note: cited By 30
abstract: The paper aimed to study the chemical absorption of CO2 in monoethanolamine solvent (MEA) using high frequency ultrasonic irradiation of 1.7 MHz. The experiment was conducted at instantaneous regime in order to study the physical enhancement effect of the ultrasound. Hence, a mathematical model is proposed to justify the enhancement effects involved in the absorption process. The parameters of the experiment included ultrasonic power, MEA concentration, temperature, and CO2 partial pressure. Results show that, a significant increase in the chemical absorption rate can be obtained by using ultrasonic power of 18 W, which is up to 60 times faster than the case without ultrasonic irradiation. Besides, the experimental data is in good agreement with the simulated data by obtaining the R2 values ranged from 0.989 to 0.997. Therefore, this study demonstrates a new technology to improve the absorption process. Besides, the enhancement for the chemical absorption using ultrasonic irradiation is believed to be dominated by the fountain formation and also the convective dynamic. In overall, ultrasonic-assisted absorption would be one of the potential alternatives for CO2 capture with its advantages of high mass transfer coefficient and compact design. © 2017 Elsevier B.V.
date: 2017
publisher: Elsevier B.V.
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85017230551&doi=10.1016%2fj.seppur.2017.03.068&partnerID=40&md5=a543fff03b2f257e348363f3922cb621
id_number: 10.1016/j.seppur.2017.03.068
full_text_status: none
publication: Separation and Purification Technology
volume: 183
pagerange: 136-144
refereed: TRUE
issn: 13835866
citation:   Tay, W.H. and Lau, K.K. and Shariff, A.M.  (2017) High frequency ultrasonic-assisted chemical absorption of CO2 using monoethanolamine (MEA).  Separation and Purification Technology, 183.  pp. 136-144.  ISSN 13835866