【Ten Years of Rapid Development in Chemical Engineering Equipment】PEM water electrolysis for hydrogen production: power consumption of 4.19 kWh/Nm3 from 1994 to 2023

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Ten years of rapid development in chemical engineering equipment – praise for China’s prosperity and strength. This is just a starting point; more participation from everyone will make things even more lively. HaiChuan becomes even better with your involvement; we welcome everyone to join in the forum discussions. Everyone should pay attention to safety and know how to handle emergencies. ********************************************* On June 6th, E-HuaTong released proton exchange membrane (PEM) electrolysis systems for hydrogen production as well as PEM electrolyzers – these were the first products of their kind in the field of hydrogen production. The product is independently developed, and breakthroughs have been achieved in multiple key performance aspects, featuring faster dynamic response times, higher electrolysis efficiency, higher hydrogen production pressure, and a smaller footprint. Thanks to the control system that was independently designed and developed, this product improves the accuracy and responsiveness of temperature control. Compared to hydrogen production methods using alkaline solutions, it can adapt in real time to the instantaneous fluctuations in wind and solar energy, enabling a response time on the order of seconds and thus maximizing the conversion of electricity into hydrogen. The power consumption of the electrolyzer is below 4.19 kWh/Nm3, with a system efficiency of 80%; the overall system power consumption is less than 4.4 kWh/Nm3, which is better than the average value of 5.0 kWh/Nm3 for alkali-based hydrogen production systems. Moreover, the volume of this system is only 1/4 that of alkali-based hydrogen production systems.