eprintid: 6715
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/67/15
datestamp: 2023-11-09 16:18:30
lastmod: 2023-11-09 16:18:30
status_changed: 2023-11-09 16:07:28
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 CO2 absorption in a high pressure water batch system
ispublished: pub
keywords: Absorption; Carbon dioxide; Desorption; Gas absorption; Irradiation; Liquids; Mass transfer, Absorption enhancement; Calorimetric methods; Gas liquids; Gas separation process; High frequency HF; Low frequency ultrasonic irradiations; Physical absorption; Ultrasound irradiation, Water absorption, carbon dioxide; water, absorption; Article; calorimetry; desorption; pressure; priority journal; ultrasound
note: cited By 33
abstract: Physical absorption process is always nullified by the presence of cavitation under low frequency ultrasonic irradiation. In the present study, high frequency ultrasonic of 1.7 MHz was used for the physical absorption of CO2 in a water batch system under elevated pressure. The parameters including ultrasonic power and initial feed pressure for the system have been varied from 0 to 18 W and 6 to 41 bar, respectively. The mass transfer coefficient has been determined via the dynamic pressure-step method. Besides, the actual ultrasonic power that transmitted to the liquid was measured based on calorimetric method prior to the absorption study. Subsequently, desorption study was conducted as a comparison with the absorption process. The mechanism for the ultrasonic assisted absorption has also been discussed. Based on the results, the mass transfer coefficient has increased with the increasing of ultrasonic power. It means that, the presence of streaming effect and the formation of liquid fountain is more favorable under high frequency ultrasonic irradiation for the absorption process. Therefore, high frequency ultrasonic irradiation is suggested to be one of the potential alternatives for the gas separation process with its promising absorption enhancement and compact design. © 2016 Elsevier B.V. All rights reserved.
date: 2016
publisher: Elsevier B.V.
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84966270108&doi=10.1016%2fj.ultsonch.2016.04.004&partnerID=40&md5=c6f49888b2b7b3fa8e160c5216c2807f
id_number: 10.1016/j.ultsonch.2016.04.004
full_text_status: none
publication: Ultrasonics Sonochemistry
volume: 33
pagerange: 190-196
refereed: TRUE
issn: 13504177
citation:   Tay, W.H. and Lau, K.K. and Shariff, A.M.  (2016) High frequency ultrasonic-assisted CO2 absorption in a high pressure water batch system.  Ultrasonics Sonochemistry, 33.  pp. 190-196.  ISSN 13504177