초록 |
Chlro-alkali (CA) process, one of representative energy-consuming technology, is based on salined water electrolysis to produce chlorine gas as a major product. To date, mercury and diaphragm cell processes have been utilized. However, their negative environmental impacts induce the development of an alternative process. One of promising candidate is membrane cell process using an ion-selective polymer electrolyte and electrodes. In the process, a polymer electrolyte is located between reaction reservoirs containing electrodes where product gases are rapidly evolved. In spite of improved energy efficiency, the conventional membrane process still needs high energy consumption owing to accumulated resistances of cell components. In this presentation, a new approach to minimize the resistance factors is achieved employing a new cell configuration. Furthermore, the use of CA process to chemically convert CO2 to valued chemicals is introduced. |