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A brief introduction to the main structure of BiTAC Electrolyser

2022/01/21 09:55
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[Abstract]:
BiTAC Electrolyser consists of cell body, anode and cathode, most of which are separated from anode and cathode chambers by diaphragm.

BiTAC Electrolyser consists of cell body, anode and cathode, most of which are separated from anode and cathode chambers by diaphragm. According to the different electrolytes, it is divided into three categories: Circulation Water Electrolyzer Treatment, BiTAC Electrolyser and non-aqueous solution electrolyzers. When direct current is passed through the BiTAC Electrolyser, an oxidation reaction occurs at the interface between the anode and the solution, and a reduction reaction occurs at the interface between the cathode and the solution to produce the desired product.

BiTAC Electrolyser

Optimizing the structure of BiTAC Electrolyser and selecting electrode and diaphragm materials reasonably are the keys to improving current efficiency, reducing cell voltage and saving energy consumption. In BiTAC Electrolyser, because the electrolysis temperature is much higher than that in Circulation Water Electrolyzer Treatment, the requirements for anode materials are stricter. For electrolysis of molten sodium hydroxide, steel, nickel and their alloys are generally available. For electrolytic molten chloride, only graphite can be used.

When a metal or alloy is used as the cathode, because it works at a relatively negative potential, it can often play a role in cathodic protection, and the corrosiveness is small, so the cathode material is easier to choose. In the Circulation Water Electrolyzer Treatment, the cathode generally produces a hydrogen evolution reaction with a high overpotential. Therefore, the main improvement direction of cathode materials is to reduce the hydrogen evolution overpotential. In addition to the use of lead or graphite as the cathode when sulfuric acid is used as the electrolyte, low carbon steel is a commonly used cathode material. In order to reduce power consumption, various methods are currently used to prepare cathodes with high specific surface area and catalytic activity, such as porous nickel-plated cathodes.