Effect of Bottom Baffles and Air Inlet Position on Mass Transfer Performance of a Water-Sparged Aerocyclone
American Journal of Chemical Engineering
Volume 6, Issue 4, July 2018, Pages: 44-48
Received: Jun. 20, 2018;
Accepted: Jul. 1, 2018;
Published: Jul. 25, 2018
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Facheng Qiu, School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, China
Wen Cheng, School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, China
Haifeng Wu, School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, China
Fei Xu, School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, China
Xuejun Quan, School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, China
Lu Yang, Chongqing Municipal Solid Waste Resource Utilization & Treatment Collaborative Innovation Center, Chongqing, China
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Water-sparged Aerocyclone (WSA) is a new type of gas-liquid mass transfer equipment with a coupling field of liquid jet with gas cyclone, which can be widely used in wastewater treatment process. To further optimize the structural design of WSA, the effect of bottom baffles and air inlet position on mass transfer performance of WSA was comparatively studied by air stripping of ammonia from wastewater. The results indicated that the separation space configuration of a WSA affects its mass transfer performances. Under the same condition, the axial air inlet position has no effect on mass transfer performance, but moving air inlet position downward could reduce the gas pressure drop in WSA by about 10%, which was probably caused by abating the friction loss between the gas cyclone and the wall. In case of high air inlet velocity and low liquid flow rate, the bottom baffles in the WSA could intensify the mixing effect between gas and liquid phases, thereby improving the mass transfer performance, and the effect is more pronounced with the increase of air inlet velocity. The results could be used as a guide for the design of WSA with excellent mass transfer performance.
Cyclone, Baffle, Mass Transfer, Wastewater, Gas-Liquid Flow
To cite this article
Effect of Bottom Baffles and Air Inlet Position on Mass Transfer Performance of a Water-Sparged Aerocyclone, American Journal of Chemical Engineering.
Vol. 6, No. 4,
2018, pp. 44-48.
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Y. Lin, L. I. Lin, C. Zhang and X. U. Huasheng (2014) Progress on the mixing of liquid jet injected into a Crossflow. Acta Aeronautica Et Astronautica Sinica, 35, 46-57.
X. Li, M. C. Soteriou (2018) Detailed numerical simulation of liquid jet atomization in crossflow of increasing density. International Journal of Multiphase Flow, 104, 214-232.
Y. Xia, L. Khezzar, M. Alshehhi, Y. Hardalupas (2018) Atomization of impinging opposed water jets interacting with an air jet. Experimental Thermal & Fluid Science, 93, 11-22.
Z. L. Cheng, X. J. Quan, L. Dai, Y. P. Yan and Q. H. Zhao (2013) Optimization of spray hole distribution in water-sparged aerocyclone. CIESC Journal, 64, 3182-3188.
X. J. Quan, Q. H. Zhao, J. X. Xiang, Z. L. Cheng and F. P. Wang (2012) Mass transfer mechanism of a water-sparged aerocyclone reactor. Advanced Materials Research, 398-398, 279-283.
X. J. Quan, Z. L. Cheng, F. Xu, F. C. Qiu, L. Dai and Y. P. Yan (2014) Structural optimization of the porous section in a water-sparged aerocyclone reactor to enhance the air-stripping efficiency of ammonia. Journal of Environmental Chemical Engineering, 2, 1199-1206.
Q. H. Zhao, X. J. Quan, J. X. Xiang, F. P. Wang and Z. L. Cheng (2011) Gas phase pressure drop characteristics in a water-sparged aerocyclone. CIESC Journal, 62, 2507-2511.
Q. H. Zhao, X. J. Quan, Z. L. Cheng and Y. P. Yan (2013) Wet desulfurization of flue gas and mass transfer mechanism in water-sparged aerocyclone. CIESC Journal, 64, 3993-4000.
X. J. Quan, F. P. Wang, Q. H. Zhao, T. T. Zhao and J. X. Xiang (2009) Air stripping of ammonia in a water-sparged aerocyclone reactor. Journal of Hazardous Materials, 170, 983-988.
Z. L. Cheng, X. J. Quan, Y. P. Yan, L. Dai (2014) Jet flow pattern and its effects on mass transfer area and gas phase pressure drop in a water-sparged aerocyclone. CIESC Journal, 65, 2914-2920.
Z. L. Cheng, F. Xu, X. J. Quan, F. C. Qiu and M. X. Dai (2015) Effect of diameter and length of vortex finder in water-sparged aerocyclone reactor on its mass transfer performance in air stripping of ammonia. CIESC Journal, 66, 1642-1648.
C. Matter-Müller, W. Gujer and W. Giger (1981) Transfer of volatile substances from water to the atmosphere. Water Research, 15, 1271-1279.
Y. Su, T. Ng, Y. Zhang, J. H. Davidson (2018) A mesoscopic model for transient mass transfer of volatile organic compounds from porous walls of different structures. International Journal of Heat & Mass Transfer, 117, 36-49.