Development trends of caustic soda production process equipment in 2018
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Recently, our company hired an investment firm to develop a strategy for the company’s production and profits in 2018, and we need forecast data on the development trends of the processes related to caustic soda production for that year. Dear colleagues in the industry, could you please introduce the advanced energy-saving and consumption-reducing technologies, as well as environmental protection measures related to clean production that are currently in use in caustic soda production processes?
For example, our facility’s current brine purification unit uses ceramic membranes; it has a nanofiltration membrane system for removing sulfate ions, the evaporation process is a three-effect counter-current evaporation system, and the electrolytic cells have also been upgraded with zero-gap design. What other advanced process technologies can reduce the energy consumption of caustic soda?
Hydrogen electrodes, oxygen electrodes – the energy-saving technology for ion-exchange membrane electrolyzers mentioned in old books; isn’t it still not practical yet?
It seems it’s not time for an upgrade yet
If gas electrode technology cannot be used, there is not much that can be changed in chlor-alkali ion-exchange membrane electrolyzers. Things like the refinement of brine, replacing ceramic membranes with Kay membranes, or replacing ceramic membranes with PP membranes, etc. – the significance of such improvements can be ignored ； Whether it is alkali solution evaporation concentration using three-effect, five-effect, eleven-effect systems or MVR, there is little appeal in terms of the benefits it offers.