Journal
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
Volume 137, Issue -, Pages 137-147Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cep.2019.02.014
Keywords
Paraffin/olefin separation; Microchemical technology; Process intensification; Ultrasonic microreactor; Gas-liquid
Categories
Funding
- National Natural Science Foundation of China [91634204, 21676263, U1662124]
- Youth Innovation Promotion Association CAS [2017229]
- Dalian Science & Technology Innovation Fund [2018J11CY019]
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Ultrasound is an effective method to intensify gas-liquid processes as the oscillation energy is easily focused at the gas-liquid interface, which can induce strong interface oscillation and acoustic streaming. The combination of ultrasound and microreactor provides ideal control over the ultrasound field, making the energy efficiently utilized. In this study, characteristics of chemical absorption of C2H4 from the mixture of C2H6 /C(2)H(4)into AgNO3 solutions under Taylor flow are investigated in a high-power ultrasonic microreactor. The effect of ultrasound on the bubble size reduction, absorption and mass transfer coefficient is presented and discussed. It is demonstrated that very large mass transfer coefficient with k(L)a and k(L) in the range of 7-42 s(-1) and 0.00169-0.0225 m s(-1) respectively are obtained, presenting significant intensification compared to absorption without ultrasound in the same reactor.
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