Suspension Catalysis in Slug Flow Microreactor - Experimental and Numerical Investigation of Mass Transfer

被引:9
|
作者
Scheiff, Frederik [1 ]
Neemann, Frank [1 ]
Tomasiak, Sylwia J. [1 ]
Agar, David W. [1 ]
机构
[1] Tech Univ Dortmund, Fak Bio & Chem Ingn, Lehrstuhl Chem Verfahrenstech, D-44227 Dortmund, Germany
关键词
Flussig; Fest-Stofftransport; Heterogene Katalyse; Ionenaustausch; Mikroreaktor; Pfropfenstromung; Heterogeneous catalysis; Ion exchange; Liquid-solid mass transfer; Microreactor; Slug flow; ION-EXCHANGE; LIQUID; CAPILLARY; KINETICS; SEPARATION; PARTICLES; DROP;
D O I
10.1002/cite.201300131
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Pfropfenstromungs-Kapillarreaktoren bieten einen Ansatz zur zweiphasigen Suspensionskatalyse die eine einfachere Katalysatorruckgewinnung und Reduzierung der Partikelgro ss e ermoglicht, sofern eine ausreichende Stofftransportleistung durch die Zirkulationsstromung gewahrleistet wird. Experimentelle Messungen und ein dynamisches Modell zeigen, dass der Flussig/Fest-Stofftransport zunachst eine Limitierung darstellt und durch eine inhomogene Suspendierung gehemmt wird. Die Reduzierung der Katalysatorgro ss e hebt diese Limitierung jedoch auf, so dass die zweiphasige Suspensionskatalyse vielversprechend erscheint. Slug flow capillary reactors are well suited for two-phase suspension catalysis, which serves as catalyst carrier and permits facile catalyst recovery with smaller catalyst particles, as long as the internal circulation provides a sufficiently rapid liquid-solid mass transfer. A combination of experimental measurements and dynamic modeling revealed that an inhomogeneous suspension restricts the mass transfer performance. However, this limitation is more than compensated by reducing the catalyst particle size, making two-phase suspension catalysis a promising concept for heterogeneous catalysis in microreactors.
引用
收藏
页码:504 / 518
页数:15
相关论文
共 50 条
  • [11] SLUG FLOW HEAT TRANSFER IN MICROCHANNELS: A NUMERICAL STUDY
    Bandara, Thilaksiri
    Cheung, Sherman C. P.
    Rosengarten, Gary
    COMPUTATIONAL THERMAL SCIENCES, 2015, 7 (01): : 81 - 92
  • [12] Numerical study of slug flow heat transfer in microchannels
    Bayareh, Morteza
    Esfahany, Mohsen Nasr
    Afshar, Nader
    Bastegani, Mohsen
    INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2020, 147
  • [13] Numerical and experimental investigation of heat and mass transfer of a concasting technology
    Kavicka, F
    Stetina, J
    Sekanina, B
    Ramík, B
    Dobrovská, J
    COMPUTATIONAL METHODS AND EXPERIMENTAL MEASUREMENTS X, 2001, 3 : 779 - 788
  • [14] Direct numerical simulations of mass transfer in square microchannels for liquid-liquid slug flow
    Raimondi, Nathalie Di Miceli
    Prat, Laurent
    Gourdon, Christophe
    Cognet, Patrick
    CHEMICAL ENGINEERING SCIENCE, 2008, 63 (22) : 5522 - 5530
  • [15] Modeling Slug Flow and Mass Transfer in Inclined Pipes
    Pokusaev, B. G.
    Nekrasov, D. A.
    Khramtsov, D. P.
    THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING, 2016, 50 (03) : 237 - 241
  • [16] Modeling slug flow and mass transfer in inclined pipes
    B. G. Pokusaev
    D. A. Nekrasov
    D. P. Khramtsov
    Theoretical Foundations of Chemical Engineering, 2016, 50 : 237 - 241
  • [17] Experimental study of interfacial mass transfer for the transition from slug to bubbly flow in a rectangular microchannel
    Bartkus, G. V.
    Filatov, N. A.
    Bukatin, A. S.
    Kuznetsov, V. V.
    THERMOPHYSICS AND AEROMECHANICS, 2024, 31 (03) : 513 - 522
  • [18] Mass Transfer Performance of a Capillary Microreactor during Ultrasound-Assisted Phase Transfer Catalysis
    Aljbour, Salah
    Yamada, Hiroshi
    Tagawa, Tomohiko
    JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2010, 43 (05) : 429 - 434
  • [19] Experimental and numerical study on the flow characteristics of slug flow in a horizontal elbow
    Cao, Xuewen
    Zhang, Pan
    Li, Xiang
    Li, Zheng
    Zhang, Qianrong
    Bian, Jiang
    JOURNAL OF PIPELINE SCIENCE AND ENGINEERING, 2022, 2 (04):
  • [20] Experimental investigation and numerical simulation of mass transfer during drop formation
    Lu, Ping
    Wang, Zhihui
    Yang, Chao
    Mao, Zai-Sha
    CHEMICAL ENGINEERING SCIENCE, 2010, 65 (20) : 5517 - 5526