Hydrogen production demineralized water preheater
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How to determine if there is a leak in the demineralized water preheater? Variable gas in the tube side, deionized water in the shell side.
This post was last edited by libingtaoff8 on 2017-5-30 13:16. Should the deionized water be preheated before being fed into the deaerator, or directly into the steam drum?
When entering the deaerator, the medium-pressure gas pressure is higher than that of the deionized water; a hydrogen detector can be used to check whether hydrogen is present in the deionized water
Thank you. Will it cause any harm to the conversion catalyst?
Thank you. Could the conversion catalyst cause any harm?
The temperature on the gas side of the medium-pressure exchanger is high; in the event of a leak, the opening degree of the cross-connection on the gas side of the heat exchanger will be smaller than usual. Additionally, the vent gas from the deaeration tank contains methane and hydrogen
It won’t leak into the system! How can it affect the catalyst?
This is a difficult problem that experts in design institutes need to solve. Based on my experience, 80% of devices equipped with such heat exchangers leak; it’s just that the leaks go unnoticed in some cases. Therefore, this issue still needs to be addressed from the perspective of engineering design.