BiTAC® cell

Leakage currents can be short circuited [64] or biased by placing an opposite current via electrodes placed in the piping [40] or reacted at sacrificial electrodes located in the manifolds [65]. These concepts have been used in the manifolds of MBC electrolyzers of Chlorine Engineers and also in the design of the CME and BiTac cells. Corrosion of catalytic cathodes used in bipolar water electrolyzers during shutdowns is prevented by cathodic protection [9]. 

FIGURE 5.27. Current distribution in CME electrolyzer and bipolar element of BiTAC and cross-sectional view of the BITAC cell element showing current path. (Wth permission from Chlorine Engineers Cmporation.)... 

Each plant will utilise four Chlorine Engineers Corporation BiTAC 838 bipolar electrolysers, with 38 cells per electrolyser operating at current densities up to... 

Cell designation ML32.ML60 BiTAC-880 ExL BiCUor BL-2.7... 

CEC BITAC 800 Electrolyzer. The Chemical Engineers Corporation (CEC) bipolar BITAC electrolyzer was jointly developed with Tosoh Corporation. The design follows the filter-press principle. Up to 80 bipolar electrode frames are clamped together by end plates and spring-loaded tie rods. The frames are made of special titanium alloy for the anode and nickel for the cathode. The electric current flows along the nickel pans, since the electrical conductivity of nickel is six times higher than that of titanium. Gas and electrolytes leave the cell compartment in overflow mode with little pressure fluctuation. Transparent PTFE tubes are attached at the electrolyte inlet and outlet nozzles of each element. Anolyte recirculation takes place through an external loop. 

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