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Zhang H, Wang B, Xiong M, Zhang L, Ren H, Gao C. Process intensification of the ozone-liquid mass transfer in ultrasonic cavitation-rotational flow interaction coupled-field: Optimization and application. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 310:114710. [PMID: 35220096 DOI: 10.1016/j.jenvman.2022.114710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 01/04/2022] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
A study on the intensification of ozone mass transfer in rotational flow field and UC-RF coupled-field was conducted. Two important operational parameters namely liquid flow rate and ultrasonic power, were optimized with regard to the ozone mass transfer efficiency. Results showed that the mass transfer coefficient (KLa) increased with liquid flow rate (up to 14 L min-1) and ultrasonic power (up to 1000 W). The maximum KLa value (1.0258 min-1) was obtained with the UC-RF coupled-field. Moreover, the reinforcement of mass transfer efficiency was promoted by the rotational flow field and UC-RF coupled-field due to the increase in the ozone-liquid contact area, intensification of turbulence, acceleration of interface renewal, and extension of residence time. Ozone microbubbles rose in the reactor in a spiral manner. In addition, the microbubbles produced in the rotational flow field served as cavitation nucleus that helped to generate the cavitation effect. The effective degradation of di-butyl phthalate (DBP) confirmed that its removal was improved by the ozone-liquid mass transfer and the promotion of hydroxyl radicals (·OH) production. The synergistic effect of DBP degradation via ultrasound-enhanced ozonation was significant.
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Affiliation(s)
- Huan Zhang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, PR China
| | - Bing Wang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, PR China; State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, PR China.
| | - Mingyang Xiong
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, PR China
| | - Linjing Zhang
- Department of Quality, Health, Safety and Environmental Protection, PetroChina Zhejiang Oilfield Company, Hangzhou, 310000, PR China
| | - Hongyang Ren
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, PR China
| | - Chunyang Gao
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, PR China
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2
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Zhou S, Qiao C, Yang H, Lu C, Liu M. Gas solid contact efficiency of pyridine synthesis reactors. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.23985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shuaishuai Zhou
- College of Chemistry and Chemical Engineering Henan University Kaifeng People's Republic of China
| | - Congzhen Qiao
- College of Chemistry and Chemical Engineering Henan University Kaifeng People's Republic of China
| | - Hao Yang
- College of Chemistry and Chemical Engineering Henan University Kaifeng People's Republic of China
| | - Chunxi Lu
- Department of State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing People's Republic of China
| | - Mengxi Liu
- Department of State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing People's Republic of China
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3
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Gu D, Mei Y, Wen L, Wang X, Liu Z. Chaotic mixing and mass transfer characteristics of fractal impellers in gas-liquid stirred tank. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.03.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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4
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Bun S, Wongwailikhit K, Chawaloesphonsiya N, Lohwacharin J, Ham P, Painmanakul P. Development of modified airlift reactor (MALR) for improving oxygen transfer: optimize design and operation condition using 'design of experiment' methodology. ENVIRONMENTAL TECHNOLOGY 2020; 41:2670-2682. [PMID: 30741612 DOI: 10.1080/09593330.2019.1579869] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 02/03/2019] [Indexed: 06/09/2023]
Abstract
Oxygen scarcity may significantly affect the process performance since it has low aqueous solubility and high demand by chemical and biological processes. The oxygen mass transfer is therefore necessary to enhance. This work aimed to develop the gas-liquid reactor, named Modified Airlift Reactor (MALR) for improving the oxygen transfer efficiency in terms of internal configurations and aeration parameters by equipping a vertical baffle for creating liquid circulation phenomena, and installing slanted baffles in the reactor riser to extend air-bubbles retention time and to improve their distributions. Since extremum conditions of the investigated factors may inefficient, optimum levels are required to identify. 2 k factorial and response surface design of Design of Experiment (DOE) methodology were applied to optimize these complex variables in terms of overall liquid mass transfer coefficient (K L a) of clean water. As a result, the main effective factors of MALR with their optimum value are amount of baffles (N b ∼ 3 baffles), baffle angle (α ∼ 50°), position of base area (Y r ∼ 10 cm), open space on baffle (A s ∼ 90 cm2), and gas flow (Qg). Increasing Qg resulted better K L a for the studied ranges (2-18 LPM). At the optimum condition, the improvement of MALR in terms of K L a coefficient was increased up to 97% and 28% compared to the regular bubble column and airlift reactor, respectively, at a certain gas flow without any extra energy. The correlation models of K L a coefficient with significant variables and power consumption were constructed for future estimation purposes.
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Affiliation(s)
- Saret Bun
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
- Department of Rural Engineering, Institut de Technologie du Cambodge, Phnom Penh, Cambodia
| | - Kritchart Wongwailikhit
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
- INSA, UPS, INPT; LISBP, Université de Toulouse, Toulouse, France
| | - Nattawin Chawaloesphonsiya
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
| | - Jenyuk Lohwacharin
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
| | - Phaly Ham
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
- Department of Rural Engineering, Institut de Technologie du Cambodge, Phnom Penh, Cambodia
| | - Pisut Painmanakul
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
- Centre of Excellence of Environmental and Hazardous Waste Management, Chulalongkorn University, Bangkok, Thailand
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5
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Xu X, Lu H, Yang Q, He F, Liu H, Wang H. Bubbly flow in degassing cyclones and potential applications. REV CHEM ENG 2020. [DOI: 10.1515/revce-2018-0084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A degassing cyclone is a separator that is widely used for the removal of bubbles and dissolved gas from liquids. Gas bubbles move toward the swirling center region in a degassing cyclone due to centrifugal force. The dissolved gas is desorbed due to a decrease in the saturated solubility resulting from the pressure gradient in the degassing cyclone. Additional carrier gas bubbles with lower partial pressure lead to mass transfer at the turbulent bubble interface. The final state of the dissolved gas and carrier gas bubble in degassing cyclones is an important issue that can be used to develop a theoretical foundation for green separation engineering. The feasible development of this technology and potential applications are discussed in this work.
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Affiliation(s)
- Xiao Xu
- East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P.R. China
| | - Hao Lu
- East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P.R. China
| | - Qiang Yang
- East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P.R. China
| | - Fengqin He
- Shanghai Normal University , Shanghai 200234 , P.R. China
| | - Honglai Liu
- East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P.R. China
| | - Hualin Wang
- East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P.R. China
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6
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Energy balance of an airlift bioreactor used for electrical power generation in energy storage. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.115208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Xu X, Lu H, Qian Y, Zhang B, Wang H, Liu H, Yang Q. Gas-liquid mass transfer and bubble size distribution in a multi-Cyclone separator. AIChE J 2018. [DOI: 10.1002/aic.16405] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiao Xu
- School of Mechanical and Power Engineering; East China University of Science and Technology; Shanghai, 200237 China
| | - Hao Lu
- School of Mechanical and Power Engineering; East China University of Science and Technology; Shanghai, 200237 China
| | - Yundong Qian
- School of Mechanical and Power Engineering; East China University of Science and Technology; Shanghai, 200237 China
| | - Bohan Zhang
- School of Mechanical and Power Engineering; East China University of Science and Technology; Shanghai, 200237 China
| | - Hualin Wang
- State Key Laboratory of Chemical Engineering; East China University of Science and Technology; Shanghai, 200237 China
| | - Honglai Liu
- State Key Laboratory of Chemical Engineering; East China University of Science and Technology; Shanghai, 200237 China
| | - Qiang Yang
- State Environmental Protection Key Lab of Environmental Risk Assessment and Control on Chemical Process; East China University of Science and Technology; Shanghai, 200237 China
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8
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Kumar N, Bansal A, Gupta R. Shear rate and mass transfer coefficient in internal loop airlift reactors involving non-Newtonian fluids. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.05.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Sadeghizadeh A, Rahimi R, Farhad Dad F. Computational fluid dynamics modeling of carbon dioxide capture from air using biocatalyst in an airlift reactor. BIORESOURCE TECHNOLOGY 2018; 253:154-164. [PMID: 29353746 DOI: 10.1016/j.biortech.2018.01.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/04/2018] [Accepted: 01/05/2018] [Indexed: 06/07/2023]
Abstract
In this work, a novel three-phase and three dimensional CFD model based on the Euler-Euler approach developed for modeling the hydrodynamic, mass transfer and CO2 fixation using microalgae in an internal loop airlift reactor with internal sparger. The main objective of this work was to development of CFD codes in order to simulate the CO2 biofixation process under different input gas velocity during 11 days of culture time and simulate the unsteady state mass transfer based on Surface-Renewal-Stretch (SRS) model. The CFD results were compared with the our previous experimental work and they showed good agreement with a margin of less than 10%. This paper illustrated the ability of the CFD in complex process simulation such as CO2 biofixation in the airlift reactor and provided a useful basis for further study.
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Affiliation(s)
- Aziz Sadeghizadeh
- Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, P.O. Box. 98164-161, Iran
| | - Rahbar Rahimi
- Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, P.O. Box. 98164-161, Iran.
| | - Farid Farhad Dad
- Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, P.O. Box. 98164-161, Iran
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De bruyn M, Budarin VL, Sturm GSJ, Stefanidis GD, Radoiu M, Stankiewicz A, Macquarrie DJ. Subtle Microwave-Induced Overheating Effects in an Industrial Demethylation Reaction and Their Direct Use in the Development of an Innovative Microwave Reactor. J Am Chem Soc 2017; 139:5431-5436. [DOI: 10.1021/jacs.7b00689] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Mario De bruyn
- Green
Chemistry Centre of Excellence, University of York, YO10 5DD, Heslington, York, United Kingdom
| | - Vitaliy L. Budarin
- Green
Chemistry Centre of Excellence, University of York, YO10 5DD, Heslington, York, United Kingdom
| | - Guido S. J. Sturm
- Process & Energy Department, Delft University of Technology, Leeghwaterstraat 39, 2628CB Delft, The Netherlands
| | - Georgios D. Stefanidis
- Process
Engineering for Sustainable Systems (ProcESS), Department of Chemical
Engineering, Catholic University of Leuven (KULeuven), Celestijnenlaan
200F, 3001 Leuven, Belgium
| | | | - Andrzej Stankiewicz
- Process & Energy Department, Delft University of Technology, Leeghwaterstraat 39, 2628CB Delft, The Netherlands
| | - Duncan J. Macquarrie
- Green
Chemistry Centre of Excellence, University of York, YO10 5DD, Heslington, York, United Kingdom
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11
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Hydrodynamics and mass transfer in bubble column, conventional airlift, stirred airlift and stirred tank bioreactors, using viscous fluid: A comparative study. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2016.11.019] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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