1
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Experimental and numerical study on the bubble dynamics and flow field of a swirl flow microbubble generator with baffle internals. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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2
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Effects of Solid Particles on Bubble Breakup and Coalescence in Slurry Bubble Columns. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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3
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Li L, Zhao Y, Lian W, Han C, Liu Y, Li P, Zhang Q, Huang W. Insight into the effect of particle density and size on the hydrodynamics of a particular slurry bubble column reactor by CFD-PBM approach. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Bubble size modeling approach for the simulation of bubble columns. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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5
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Huang G, Cai K, Chen W, Zhang T, Yin J, Wang D. Numerical simulation of two-phase hydrodynamics and mass transfer inside a serpentine tubular gas–liquid reactor. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Zhang H, Wang Y, Sayyar A, Wang T. A
CFD‐PBM
coupled model under entire turbulent spectrum for simulating a bubble column with highly viscous media. AIChE J 2021. [DOI: 10.1002/aic.17473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Huahai Zhang
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering Tsinghua University Beijing China
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7
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Wang S, Bu Q, Luan D, Zhang Y, Li L, Wang Z, Shi W. Study on gas–liquid flow characteristics in stirred tank with dual-impeller based on CFD-PBM coupled model. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.10.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Yuan P, Wang Z, Ahmad MS, Kong W, Ma J, Wang Z, Shen B, Ji Z. Enhanced oxidative removal of NO by UV/in situ Fenton: Factors, kinetics and simulation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 778:146202. [PMID: 34030361 DOI: 10.1016/j.scitotenv.2021.146202] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/08/2021] [Accepted: 02/25/2021] [Indexed: 06/12/2023]
Abstract
A series of experiments on the oxidative removal of NO from flue gas using a novel in situ Fenton (IF) system was performed in the presence of ultraviolet light (UV). The comparison tests revealed that the in situ Fenton system facilitated by UV (UV/IF) has a better oxidation ability of NO than that of the IF system due to the photochemical effect on the generation of oxidative species like (OH). Both of the aforementioned oxidation efficiencies were higher than that of the conventional Fenton system (CF) depending on the premix of Fe2+ and H2O2 solutions, which attribute to the improvement of (OH) yield and valid utilization with continuous addition of fresh reagents and UV radiation. In follow-up experiments, the effects of UV power, gas flow rate, reagent temperature, Fe2+/H2O2 molar ratio, initial pH, initial concentration of NO and SO2 and volume fraction O2 and CO2 on the oxidative removal of NO by UV/IF method were investigated respectively. Moreover, the results of kinetic analysis indicated that NO oxidation was confirmed to have a pseudo-first-order kinetics pattern. The rate constants decreased slightly with increasing liquid temperature, and then the apparent activation energy of NO oxidation reactions in the UV/IF system was calculated as -5.62 kJ/mol by the Arrhenius equation. Furthermore, the reaction mechanism and application prospects concerning NO oxidative removal by using the UV/IF system was speculated in brief. Finally, the computational fluid dynamics (CFD) simulations revealed that the improvement of axial and radial gas hold-up would enhance the gas-liquid contact and accelerate the oxidation reactions on the interface. In addition to reasonable control of process parameters, the optimization of reactor interior structure needs to be carried out via CFD simulation and experimental validation in future research, both are favourable to promote the NO oxidation efficiency and large-scale development of this technology.
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Affiliation(s)
- Peng Yuan
- Tianjin Key Laboratory of Clean Energy Utilization and Pollutants Control, School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China; School of Chemical Engineering & Technology, Hebei University of Technology, Tianjin 300130, PR China
| | - Zhi Wang
- Tianjin Key Laboratory of Clean Energy Utilization and Pollutants Control, School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Muhammad Sajjad Ahmad
- Tianjin Key Laboratory of Clean Energy Utilization and Pollutants Control, School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Wenwen Kong
- Tianjin Key Laboratory of Clean Energy Utilization and Pollutants Control, School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Jiao Ma
- Tianjin Key Laboratory of Clean Energy Utilization and Pollutants Control, School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Zhuozhi Wang
- Tianjin Key Laboratory of Clean Energy Utilization and Pollutants Control, School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Boxiong Shen
- Tianjin Key Laboratory of Clean Energy Utilization and Pollutants Control, School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China.
| | - Zhiyong Ji
- School of Chemical Engineering & Technology, Hebei University of Technology, Tianjin 300130, PR China.
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9
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Validation studies to assist in the development of scale and system independent CFD models for industrial bubble columns. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.04.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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High-efficient CFD-based framework for the comprehensive hydrodynamic evaluation of pulsed extraction columns. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116540] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Song R, Han L, Zhang L, Tang S. Experiments and modeling of bubbles colliding head‐on in water. AIChE J 2021. [DOI: 10.1002/aic.17220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Runci Song
- School of Chemical Engineering Xiangtan University Xiangtan China
| | - Luchang Han
- School of Chemical Engineering Xiangtan University Xiangtan China
| | - Ling Zhang
- School of Chemical Engineering Xiangtan University Xiangtan China
| | - Shangyu Tang
- School of Chemical Engineering Xiangtan University Xiangtan China
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12
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Zhang XB, Yan WC, Luo ZH. Numerical simulation of local bubble size distribution in bubble columns operated at heterogeneous regime. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116266] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Zhang XB, Yan WC, Luo ZH. CFD-PBM Simulation of Bubble Columns: Sensitivity Analysis of the Nondrag Forces. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02759] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xi-Bao Zhang
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Wei-Cheng Yan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, P. R. China
| | - Zheng-Hong Luo
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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14
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Zhang X, Luo Z. Local
gas–liquid
slip velocity distribution in bubble columns and its relationship with heat transfer. AIChE J 2020. [DOI: 10.1002/aic.17032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xi‐Bao Zhang
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University Shanghai China
| | - Zheng‐Hong Luo
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University Shanghai China
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