Innovative hydrogen production: Chlor-alkali process with AlCl3
International Journal of Hydrogen Energy, cilt.231, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 231
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.ijhydene.2026.154788
- Dergi Adı: International Journal of Hydrogen Energy
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Compendex, Environment Index, INSPEC
- Anahtar Kelimeler: AlCl3performance, Chlor alkali reactor, Electrolysis, Energy efficiency, Hydrogen production, Sustainable energy
- Çukurova Üniversitesi Adresli: Evet
Özet
This investigation explores the electrochemical generation of hydrogen gas by electrolyzing an aqueous aluminum chloride solution in an electrolytic cell. An experimental setup, equipped with a Nafion 212 membrane to physically separate the anode and cathode sections, was used. The anode chamber was continuously supplied with an AlCl3 solution, while the cathode chamber received a constant influx of pure water. A series of experiments were carried out at three different voltages (5.0, 7.5, and 10.0 V) and two different temperature conditions (20 °C and 45 °C), with the electrolyte flow rate into the reactor kept constant at 0.3 g/s. The reactor's design, coupled with the dilution effect from water introduction, led to reduced electrolyte density, negatively impacting current flow and hydrogen production. Adjusting the AlCl3 electrolyte flow rate had minimal influence on current and gas production rates. Additionally, the corrosive nature of the chlorine gas environment accelerated the deterioration of the carbon electrodes, further hindering chlorine gas production relative to hydrogen gas. Experimental results revealed that hydrogen production rates ranged from a minimum of 0.29 mL/min (20 °C, 5 V) to a maximum of 3.49 mL/min (45 °C, 10 V). This indicates that higher temperatures and voltages significantly enhance hydrogen production, despite challenges such as electrode erosion and reactor limitations.