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Alkaline water hydrogen production system

2023-05-06View Original

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Experts, in an alkaline water hydrogen production system, once the hydrogen storage tank on the client side is full, should it be emptied and put into standby mode, or should the system be shut down to maintain pressure? Does anyone know?
Reply #22023-05-06
Generally, in an alkaline water hydrogen production system, measures should be taken to shut down the system and maintain pressure once the hydrogen storage tank at the client’s site is full. Because if it is left empty in standby mode, the pressure inside the tank will gradually decrease, which will result in a decline in the quality of the hydrogen stored in the tank; other problems such as pipe blockages may also occur. By adopting the measure of shutting down the system and maintaining pressure, it is possible to keep the hydrogen pressure inside the storage tank stable, while avoiding safety hazards that could arise from hydrogen remaining in the tank for an extended period of time. It is recommended that when using an alkaline water hydrogen production system, appropriate measures be taken based on the specific circumstances to ensure the safe and stable operation of the system. .
Reply #32023-05-06
It is recommended that hydrogen production electrolyzers operate in a low-power standby mode to maintain a thermodynamic state, with the gas being vented rather than fed into the purification system. Try not to shut down the machine. The electrolyzer power is solely used to maintain the alkali solution temperature and internal aeration. Thus, there is no need to purge with nitrogen every time after shutting down and restarting. Of course, if the customer’s empty long-tube trailer doesn’t arrive for a long time, it’s better to shut down the machine (for 24 hours)
Reply #42023-05-06
At low power levels, could the hydrogen content in oxygen be very high? Alkaline water is too troublesome. It takes a long time to start it up once; do power plants and electronics factories use the same method for operation?
Reply #52023-05-06
Can equipment with high output operate with less current and discharge it directly outside? Does the hydrogen content in oxygen increase at low currents?
Reply #62023-05-19
Certainly, the oxygen content in hydrogen is very high. After all, the hydrogen production volume is much lower, but due to diaphragm permeation and higher oxygen content in the alkaline solution at low temperatures, the oxygen content in the hydrogen is inevitably not low. However, due to the low concentration, the total amount of hydrogen is also low; therefore, a palladium catalyst is sufficient to completely react with oxygen, but it is not economical. Power plants dare not operate carelessly. One can only act according to the requirements of the hydrogen production equipment manufacturers: if the oxygen content in the hydrogen is too high, it must be drained, and it is not permissible to feed it into a purification system for further use.
Reply #72023-05-19
Indeed very professional: handshake

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