Energy Optimization of Chlor-Alkali Electrolysis Process Using Advanced Dimensionally Stable Anode Technology

Abstract

The chlor-alkali electrolysis process is one of the most energy-intensive operations in the chemical industry, requiring substantial electrical power for the production of chlorine, hydrogen, and sodium hydroxide. Improving energy efficiency in this process is essential for reducing operational costs, minimizing environmental impact, and enhancing industrial sustainability. This study investigates the energy optimization of the chlor-alkali electrolysis process using advanced dimensionally stable anode (DSA) technology under varying operational conditions. The proposed approach integrates advanced electrode material engineering, electrochemical performance analysis, and process optimization techniques to improve current efficiency, reduce cell voltage, and enhance overall system stability. A comprehensive experimental and analytical investigation was conducted to evaluate the influence of anode coating composition, current density, electrolyte concentration, operating temperature, and electrode spacing on electrolysis performance and energy consumption. Advanced DSA materials with enhanced catalytic activity and corrosion resistance were developed to improve electrochemical reaction kinetics and reduce electrical losses during continuous operation. Performance evaluation demonstrated significant reductions in specific energy consumption and improved chlorine production efficiency compared to conventional electrode systems. The optimized electrolysis configuration also exhibited enhanced operational durability, reduced maintenance requirements, and improved resistance to electrode degradation under industrial operating conditions. Comparative analysis revealed substantial improvements in process efficiency, energy utilization, and environmental performance through optimized anode technology and operational control strategies.