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Yan J, Jia B, Pan X, Zhang J, Jia N. Research on the dust-control technology of a double-wall attached-ring air curtain on an excavation face. PLoS One 2024; 19:e0295045. [PMID: 38452015 PMCID: PMC10919721 DOI: 10.1371/journal.pone.0295045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 11/13/2023] [Indexed: 03/09/2024] Open
Abstract
On the basis of the jet theory of airflow fields and the gas-solid two-phase flow theory, we studied the law of dust migration in a simulated dusting space. We used the control variable method and numerical simulation software to explore the airflow field and dust concentration distribution on the working surface of the dusting under different inlet wind speeds and different attached blades of the double-walled annular air curtain. We determined the speed of the inlet of the annular air curtain to be 30 m/s. When the angle of the attached blade was 30°, the dust concentration of the driver and other workers was controlled below 100 mg/m3, which produced the best dust control effect is the best. Using real data, we built a similar test platform to test the airflow field and dust concentration. Through data measurement and analysis, we proved that a dust control system with a double-wall attached-ring air curtain formed a circulating airflow field that could shield dust and effectively reduce dust concentration in the simulated space. The dust removal efficiency of total dust and exhaled dust reached 98.5% and 97.5%, respectively. We compared the test data and simulation results and concluded that the double-wall attached-ring air curtain could effectively ensure the safety of mine production and provide a better underground working environment for operators.
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Affiliation(s)
- Jingxue Yan
- College of Safety Science and Engineering, Liaoning Technical University, Fuxing, Liaoning, China
- Key Laboratory of Mine Thermal Power Disaster and Prevention, Ministry of Education, Liaoning Technical University, Fuxing, Liaoning, China
| | - Baoshan Jia
- College of Safety Science and Engineering, Liaoning Technical University, Fuxing, Liaoning, China
- Key Laboratory of Mine Thermal Power Disaster and Prevention, Ministry of Education, Liaoning Technical University, Fuxing, Liaoning, China
| | - Xuerong Pan
- China Construction Third Bureau Group Northwest Branch, Xian, Shaanxi, China
| | - Jinyi Zhang
- College of Safety Science and Engineering, Liaoning Technical University, Fuxing, Liaoning, China
- Key Laboratory of Mine Thermal Power Disaster and Prevention, Ministry of Education, Liaoning Technical University, Fuxing, Liaoning, China
| | - Niujun Jia
- College of Safety Science and Engineering, Liaoning Technical University, Fuxing, Liaoning, China
- Key Laboratory of Mine Thermal Power Disaster and Prevention, Ministry of Education, Liaoning Technical University, Fuxing, Liaoning, China
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2
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Gimondi S, Ferreira H, Reis RL, Neves NM. Microfluidic Devices: A Tool for Nanoparticle Synthesis and Performance Evaluation. ACS NANO 2023; 17:14205-14228. [PMID: 37498731 PMCID: PMC10416572 DOI: 10.1021/acsnano.3c01117] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 07/24/2023] [Indexed: 07/29/2023]
Abstract
The use of nanoparticles (NPs) in nanomedicine holds great promise for the treatment of diseases for which conventional therapies present serious limitations. Additionally, NPs can drastically improve early diagnosis and follow-up of many disorders. However, to harness their full capabilities, they must be precisely designed, produced, and tested in relevant models. Microfluidic systems can simulate dynamic fluid flows, gradients, specific microenvironments, and multiorgan complexes, providing an efficient and cost-effective approach for both NPs synthesis and screening. Microfluidic technologies allow for the synthesis of NPs under controlled conditions, enhancing batch-to-batch reproducibility. Moreover, due to the versatility of microfluidic devices, it is possible to generate and customize endless platforms for rapid and efficient in vitro and in vivo screening of NPs' performance. Indeed, microfluidic devices show great potential as advanced systems for small organism manipulation and immobilization. In this review, first we summarize the major microfluidic platforms that allow for controlled NPs synthesis. Next, we will discuss the most innovative microfluidic platforms that enable mimicking in vitro environments as well as give insights into organism-on-a-chip and their promising application for NPs screening. We conclude this review with a critical assessment of the current challenges and possible future directions of microfluidic systems in NPs synthesis and screening to impact the field of nanomedicine.
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Affiliation(s)
- Sara Gimondi
- 3B’s
Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters
of the European Institute of Excellence on Tissue Engineering and
Regenerative Medicine, AvePark, Parque
de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT
Government Associate Laboratory, 4805-017 Braga, Guimarães, Portugal
| | - Helena Ferreira
- 3B’s
Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters
of the European Institute of Excellence on Tissue Engineering and
Regenerative Medicine, AvePark, Parque
de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT
Government Associate Laboratory, 4805-017 Braga, Guimarães, Portugal
| | - Rui L. Reis
- 3B’s
Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters
of the European Institute of Excellence on Tissue Engineering and
Regenerative Medicine, AvePark, Parque
de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT
Government Associate Laboratory, 4805-017 Braga, Guimarães, Portugal
| | - Nuno M. Neves
- 3B’s
Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters
of the European Institute of Excellence on Tissue Engineering and
Regenerative Medicine, AvePark, Parque
de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT
Government Associate Laboratory, 4805-017 Braga, Guimarães, Portugal
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3
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Poletti L, Rovegno C, Di Carmine G, Vacchi F, Ragno D, Brandolese A, Massi A, Dambruoso P. Efficiency in Carbon Dioxide Fixation into Cyclic Carbonates: Operating Bifunctional Polyhydroxylated Pyridinium Organocatalysts in Segmented Flow Conditions. Molecules 2023; 28:molecules28041530. [PMID: 36838518 PMCID: PMC9960811 DOI: 10.3390/molecules28041530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/09/2023] Open
Abstract
Novel polyhydroxylated ammonium, imidazolium, and pyridinium salt organocatalysts were prepared through N-alkylation sequences using glycidol as the key precursor. The most active pyridinium iodide catalyst effectively promoted the carbonation of a set of terminal epoxides (80 to >95% yields) at a low catalyst loading (5 mol%), ambient pressure of CO2, and moderate temperature (75 °C) in batch operations, also demonstrating high recyclability and simple downstream separation from the reaction mixture. Moving from batch to segmented flow conditions with the operation of thermostated (75 °C) and pressurized (8.5 atm) home-made reactors significantly reduced the process time (from hours to seconds), increasing the process productivity up to 20.1 mmol(product) h-1 mmol(cat)-1, a value ~17 times higher than that in batch mode.
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Affiliation(s)
- Lorenzo Poletti
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Caterina Rovegno
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
- Institute for Organic Synthesis and Photoreactivity of the Italian National Research Council, CNR Area della Ricerca di Bologna, Via P. Gobetti 101, 40129 Bologna, Italy
| | - Graziano Di Carmine
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Filippo Vacchi
- Institute for Organic Synthesis and Photoreactivity of the Italian National Research Council, CNR Area della Ricerca di Bologna, Via P. Gobetti 101, 40129 Bologna, Italy
| | - Daniele Ragno
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Arianna Brandolese
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Alessandro Massi
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
- Correspondence: (A.M.); (P.D.); Tel.: +39-051-6399765 (P.D.)
| | - Paolo Dambruoso
- Institute for Organic Synthesis and Photoreactivity of the Italian National Research Council, CNR Area della Ricerca di Bologna, Via P. Gobetti 101, 40129 Bologna, Italy
- Correspondence: (A.M.); (P.D.); Tel.: +39-051-6399765 (P.D.)
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4
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Feng H, Zhang Y, Liu J, Liu D. Towards Heterogeneous Catalysis: A Review on Recent Advances of Depositing Nanocatalysts in Continuous-Flow Microreactors. Molecules 2022; 27:molecules27228052. [PMID: 36432155 PMCID: PMC9696314 DOI: 10.3390/molecules27228052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022] Open
Abstract
As a promising technology, microreactors have been regarded as a potential candidate for heterogeneous catalytic reactions as they inherently allow the superior advantages of precise flow control, efficient reactant transfer, flexible operation, etc. However, the wide market penetration of microreactors is still facing severe challenges. One of the most important reasons is the preparation of a high-performance catalytic layer in the microreactor because it can directly influence the catalytic activity and stability the reactor and thus the deployment the microreactor technology. Hence, significant progress in depositing nanocatalysts in microreactors has been made in the past decades. Herein, the methods, principles, recent advances, and challenges in the preparation of the catalyst layer in microreactors were presented. A general description of the physicochemical processes of heterogeneous catalytic reactions in microreactors were first introduced. Then, recent advances in catalyst layer preparation in microreactors were systematically summarized. Particular attention was focused on the most common sol-gel method and its latest developments. Some new strategies proposed recently, including bio-inspired electroless deposition and layer-by-layer self-assembly, were also comprehensively discussed. The remaining challenges and future directions of preparing the catalytic layer in microreactors with high performance and low cost were highlighted.
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Affiliation(s)
- Hao Feng
- MIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
- Correspondence: (H.F.); (J.L.); (D.L.)
| | - Ying Zhang
- MIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Jian Liu
- College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
- Correspondence: (H.F.); (J.L.); (D.L.)
| | - Dong Liu
- MIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
- Correspondence: (H.F.); (J.L.); (D.L.)
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5
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Feng H, Zhang Y, Liu D, Chen R. Residence time characteristic of Taylor reacting flow in a microchannel reactor. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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6
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Hydrodynamic characterization of continuous flow of Pickering droplets with solid nanoparticles in microchannel reactors. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116838] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Zhu K, Yao C, Liu Y, Chen G. Using expansion units to improve CO2 absorption for natural gas purification - A study on the hydrodynamics and mass transfer. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Segmented Microfluidic Flow Reactors for Nanomaterial Synthesis. NANOMATERIALS 2020; 10:nano10071421. [PMID: 32708175 PMCID: PMC7407902 DOI: 10.3390/nano10071421] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 07/08/2020] [Accepted: 07/13/2020] [Indexed: 12/23/2022]
Abstract
Microfluidic reactors have remarkably promoted the synthesis and investigation of advanced nanomaterials due to their continuous mode and accelerated heat/mass transfer. Notably, segmented microfluidic flow reactors (SMFRs) are an important class of microfluidic reactors that have been developed to accurately manipulate nanomaterial synthesis by further improvement of the residence time distributions and unique flow behaviors. This review provided a survey of the nanomaterial synthesis in SMFRs for the aspects of fluid dynamics, flow patterns, and mass transfer among and within distinct phases and provided examples of the synthesis of versatile nanomaterials via the use of different flow patterns.
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Yamamoto T, Tonomura O, Nagaki A. Continuous Production Using a T-Shaped Micro/Milli-Reactor for RUCY-Catalyzed Asymmetric Hydrogenation of Acetophenone. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2020. [DOI: 10.1252/jcej.19we083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tetsuya Yamamoto
- Corporate Research and Development Division, Takasago International Corporation
| | | | - Aichiro Nagaki
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University
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10
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Haase S, Bauer T, Graf E. Gas–Liquid Flow Regime Prediction in Minichannels: A Dimensionless, Universally Applicable Approach. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b03756] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stefan Haase
- Chair of Chemical Reaction Engineering and Process Plants, Technische Universität Dresden, Dresden 01069, Germany
| | - Tobias Bauer
- Chair of Chemical Reaction Engineering and Process Plants, Technische Universität Dresden, Dresden 01069, Germany
| | - Eric Graf
- Chair of Chemical Reaction Engineering and Process Plants, Technische Universität Dresden, Dresden 01069, Germany
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11
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Verma RK, Ghosh S. Two-Phase Flow in Miniature Geometries: Comparison of Gas-Liquid and Liquid-Liquid Flows. CHEMBIOENG REVIEWS 2019. [DOI: 10.1002/cben.201800016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Raj Kumar Verma
- Indian Institute of Technology Roorkee; Department of Chemical Engineering; 247667 Roorkee, Uttarakhand India
| | - Sumana Ghosh
- Indian Institute of Technology Roorkee; Department of Chemical Engineering; 247667 Roorkee, Uttarakhand India
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12
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Feng H, Zhu X, Zhang B, Chen R, Liao Q, Ye D, Liu J, Liu M, Chen G, Wang K. Visualization of two-phase reacting flow behavior in a gas–liquid–solid microreactor. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00307f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydrodynamic characteristics of gas–liquid two-phase flow can significantly affect the performance of gas–liquid–solid microreactors.
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13
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Multiphase processes with ionic liquids in microreactors: hydrodynamics, mass transfer and applications. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.06.007] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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14
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Zhang P, Yao C, Ma H, Jin N, Zhang X, Lü H, Zhao Y. Dynamic changes in gas-liquid mass transfer during Taylor flow in long serpentine square microchannels. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.02.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Yue J. Multiphase flow processing in microreactors combined with heterogeneous catalysis for efficient and sustainable chemical synthesis. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.09.041] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Rehman A, López Fernández AM, Resul MG, Harvey A. Kinetic investigations of styrene carbonate synthesis from styrene oxide and CO2 using a continuous flow tube-in-tube gas-liquid reactor. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2018.02.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Martin A, Camy S, Aubin J. Hydrodynamics of CO2-ethanol flow in a microchannel under elevated pressure. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2017.12.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Chen R, Feng H, Zhu X, Liao Q, Ye D, Liu J, Liu M, Chen G, Wang K. Interaction of the Taylor flow behaviors and catalytic reaction inside a gas-liquid-solid microreactor under long-term operation. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2017.09.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Haase S, Murzin DY, Salmi T. Review on hydrodynamics and mass transfer in minichannel wall reactors with gas–liquid Taylor flow. Chem Eng Res Des 2016. [DOI: 10.1016/j.cherd.2016.06.017] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Schubert M, Kost S, Lange R, Salmi T, Haase S, Hampel U. Maldistribution susceptibility of monolith reactors: Case study of glucose hydrogenation performance. AIChE J 2016. [DOI: 10.1002/aic.15334] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Markus Schubert
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics; 01314 Dresden Germany
| | - Sebastian Kost
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics; 01314 Dresden Germany
| | - Rüdiger Lange
- Technische Universität Dresden, Chair of Chemical Reaction Engineering and Process Plant; 01062 Dresden Germany
| | - Tapio Salmi
- Åbo Akademi University, Laboratory of Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Dept. of Chemical Engineering; FI-20500 Åbo/Turku Finland
| | - Stefan Haase
- Technische Universität Dresden, Chair of Chemical Reaction Engineering and Process Plant; 01062 Dresden Germany
- Åbo Akademi University, Laboratory of Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Dept. of Chemical Engineering; FI-20500 Åbo/Turku Finland
| | - Uwe Hampel
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics; 01314 Dresden Germany
- Technische Universität Dresden, AREVA Endowed Chair of Imaging Techniques in Energy and Process Engineering; 01062 Dresden Germany
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Lu Y, Fu T, Zhu C, Ma Y, Li HZ. Dynamics of bubble breakup at a T junction. Phys Rev E 2016; 93:022802. [PMID: 26986389 DOI: 10.1103/physreve.93.022802] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Indexed: 06/05/2023]
Abstract
The gas-liquid interfacial dynamics of bubble breakup in a T junction was investigated. Four regimes were observed for a bubble passing through the T junction. It was identified by the stop flow that a critical width of the bubble neck existed: if the minimum width of the bubble neck was less than the critical value, the breakup was irreversible and fast; while if the minimum width of the bubble neck was larger than the critical value, the breakup was reversible and slow. The fast breakup was driven by the surface tension and liquid inertia and is independent of the operating conditions. The minimum width of the bubble neck could be scaled with the remaining time as a power law with an exponent of 0.22 in the beginning and of 0.5 approaching the final fast pinch-off. The slow breakup was driven by the continuous phase and the gas-liquid interface was in the equilibrium stage. Before the appearance of the tunnel, the width of the depression region could be scaled with the time as a power law with an exponent of 0.75; while after that, the width of the depression was a logarithmic function with the time.
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Affiliation(s)
- Yutao Lu
- State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Taotao Fu
- State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Chunying Zhu
- State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Youguang Ma
- State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Huai Z Li
- Laboratory of Reactions and Process Engineering, University of Lorraine, CNRS, 1, rue Grandville, BP 20451, 54001 Nancy cedex, France
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22
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Gemoets HPL, Su Y, Shang M, Hessel V, Luque R, Noël T. Liquid phase oxidation chemistry in continuous-flow microreactors. Chem Soc Rev 2016. [DOI: 10.1039/c5cs00447k] [Citation(s) in RCA: 363] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This review gives an exhaustive overview of the engineering principles, safety aspects and chemistry associated with liquid phase oxidation in continuous-flow microreactors.
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Affiliation(s)
- Hannes P. L. Gemoets
- Department of Chemical Engineering and Chemistry
- Micro Flow Chemistry & Process Technology
- Eindhoven University of Technology
- 5612 AZ Eindhoven
- The Netherlands
| | - Yuanhai Su
- Department of Chemical Engineering and Chemistry
- Micro Flow Chemistry & Process Technology
- Eindhoven University of Technology
- 5612 AZ Eindhoven
- The Netherlands
| | - Minjing Shang
- Department of Chemical Engineering and Chemistry
- Micro Flow Chemistry & Process Technology
- Eindhoven University of Technology
- 5612 AZ Eindhoven
- The Netherlands
| | - Volker Hessel
- Department of Chemical Engineering and Chemistry
- Micro Flow Chemistry & Process Technology
- Eindhoven University of Technology
- 5612 AZ Eindhoven
- The Netherlands
| | - Rafael Luque
- Departamento de Quimica Organica
- Universidad de Cordoba
- E14014 Cordoba
- Spain
| | - Timothy Noël
- Department of Chemical Engineering and Chemistry
- Micro Flow Chemistry & Process Technology
- Eindhoven University of Technology
- 5612 AZ Eindhoven
- The Netherlands
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Dong Z, Yao C, Zhang X, Xu J, Chen G, Zhao Y, Yuan Q. A high-power ultrasonic microreactor and its application in gas-liquid mass transfer intensification. LAB ON A CHIP 2015; 15:1145-52. [PMID: 25537767 DOI: 10.1039/c4lc01431f] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The combination of ultrasound and microreactor is an emerging and promising area, but the report of designing high-power ultrasonic microreactor (USMR) is still limited. This work presents a robust, high-power and highly efficient USMR by directly coupling a microreactor plate with a Langevin-type transducer. The USMR is designed as a longitudinal half wavelength resonator, for which the antinode plane of the highest sound intensity is located at the microreactor. According to one dimension design theory, numerical simulation and impedance analysis, a USMR with a maximum power of 100 W and a resonance frequency of 20 kHz was built. The strong and uniform sound field in the USMR was then applied to intensify gas-liquid mass transfer of slug flow in a microfluidic channel. Non-inertial cavitation with multiple surface wave oscillation was excited on the slug bubbles, enhancing the overall mass transfer coefficient by 3.3-5.7 times.
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Affiliation(s)
- Zhengya Dong
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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25
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Borukhova S, Seeger AD, Noël T, Wang Q, Busch M, Hessel V. Pressure-accelerated azide-alkyne cycloaddition: micro capillary versus autoclave reactor performance. CHEMSUSCHEM 2015; 8:504-512. [PMID: 25522301 DOI: 10.1002/cssc.201403034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Indexed: 06/04/2023]
Abstract
Pressure effects on regioselectivity and yield of cycloaddition reactions have been shown to exist. Nevertheless, high pressure synthetic applications with subsequent benefits in the production of natural products are limited by the general availability of the equipment. In addition, the virtues and limitations of microflow equipment under standard conditions are well established. Herein, we apply novel-process-window (NPWs) principles, such as intensification of intrinsic kinetics of a reaction using high temperature, pressure, and concentration, on azide-alkyne cycloaddition towards synthesis of Rufinamide precursor. We applied three main activation methods (i.e., uncatalyzed batch, uncatalyzed flow, and catalyzed flow) on uncatalyzed and catalyzed azide-alkyne cycloaddition. We compare the performance of two reactors, a specialized autoclave batch reactor for high-pressure operation up to 1800 bar and a capillary flow reactor (up to 400 bar). A differentiated and comprehensive picture is given for the two reactors and the three methods of activation. Reaction speedup and consequent increases in space-time yields is achieved, while the process window for favorable operation to selectively produce Rufinamide precursor in good yields is widened. The best conditions thus determined are applied to several azide-alkyne cycloadditions to widen the scope of the presented methodology.
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Affiliation(s)
- Svetlana Borukhova
- Department of Chemical Engineering and Chemistry, Micro Flow Chemistry and Process Technology, Eindhoven University of Technology, Den Dolech 2, 5612AZ, Eindhoven (The Netherlands)
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Sotowa KI. Fluid Behavior and Mass Transport Characteristics of Gas–Liquid and Liquid–Liquid Flows in Microchannels. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2014. [DOI: 10.1252/jcej.13we141] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ken-Ichiro Sotowa
- Department of Chemical Science and Technology, the University of Tokushima
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Yao C, Dong Z, Zhao Y, Chen G. The effect of system pressure on gas-liquid slug flow in a microchannel. AIChE J 2013. [DOI: 10.1002/aic.14306] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chaoqun Yao
- Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Zhengya Dong
- Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yuchao Zhao
- Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Guangwen Chen
- Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
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