초록 |
The chlor-alkali (CA) process is a commercially available process to produce valued chemicals, including chlorine gas as a major product, via salined water electrolysis with high energy consumption. Recently, membrane process employing an ion selective polymer and anti-corrosive electrodes has been attractive, since it is free from low environment impact, while conventional diaphragm and mercury process are under serious contamination issues. However, even membrane process is needed to be modified to reduce applied energy further. In this study, a new cell configuration adapting ultrazero-gap method is designed for both fast gas evolution and cell resistance minimization. Furthermore, CA operation parameters, such as brine concentration, flow rate and feed flow supplement, are optimized for high energy efficiency as well as effective chemicals production. |