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Development of Bipolar Electrochemical Microreactorfor Organic Synthesis
Jiřičný, Vladimír ; Vychodilová, Hana ; Melich, Z. ; Kodým, R. ; Bystroň, T. ; Bouzek, K.
Extensive theoretical and experimental study of electrochemical alkoxylation has been conducted in frame of large EU The new electrochemical project IMPULSE (2005-9). New high conversion high selectivity one pass bipolar electrochemical microreactor has been developed in cooperation with other partners: ICTP CR, IMM Germany, Solvent Innovation Germany and CNRS Nancy France. New design and process parameters enable significant reduction of expenses on separation of the product from reaction mixture. Experimental results and design of industrial reactor size has been presented in the contribution.
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Mathematical Optimisation of Geometry of the Microstructured Bipolar Electrolyser
Kodým, R. ; Bystroň, T. ; Křišťál, Jiří ; Jiřičný, Vladimír ; Bouzek, K.
In this work a 3-dimmensional mathematical model of the secondary current density distribution has been proposed and implemented. A parametric study of the influence of selected geometrical parameters, electrolyte conductivity and current load on the parasitic current value was performed. The Laplace equation describing the Galvani potential distribution was solved by Finite Element Method in COMSOL Multiphysics^TM environment. The mathematical model results have shown that the value of parasitic current is mainly affected by the electrolyte conductivity and interelectrode distance (i.e. active cross-section of the electrolyte distributors). Using the geometry optimization the parasitic currents have been minimized to an acceptable value, i.e. below the 5% of the total current load.
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