The characteristics of water electrolysis hydrogen production technology: mature technology, simple equipment, zero pollution, and high hydrogen purity. Applicable to various places. The disadvantage is that it consumes high energy and the cost of hydrogen production is relatively high.
At present, the operating pressure of commercial water electrolysis hydrogen production equipment is 0.1~1.6Mpa, the operating environment temperature is 80~90℃, the purity of hydrogen production is 99.7%, and the purity of oxygen production is 99.5%.
The key to hydrogen production through water electrolysis is how to reduce energy consumption during the electrolysis process and improve the efficiency of electricity energy conversion. At present, the energy consumption level of commercial electrostatic precipitator method is about 4.5~5.5kwh/Nm³H₂, and the energy consumption level is between 72% and 82%. After the conversion, the cost of hydrogen production through water electrolysis is equivalent to 30 to 40 yuan/KG.