How to reduce and avoid hydrogen leakage from the device
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If hydrogen leakage from the equipment can be reduced to a minimum, it increases the profit on the product. Let’s discuss how to achieve the best possible level of reduction.
The entire hydrogen industry is researching and considering this issue
This question is difficult to answer; higher requirements are placed on pipeline welding techniques, flange bolt connections, as well as any leaks within the equipment itself. There are also issues related to instrument wiring, etc. By overcoming these challenges, hydrogen leakage from the installation can be minimized, thereby maximizing profits
I think the main thing is to address every leakage point during the device testing. Including flanges, valve seals, and threads, etc.
At the leakage point, the gasket cannot be handled during production, so it is sealed with special adhesive; once production stops, the gasket is replaced or the flange is replaced.
There are specialized teams for plugging leaks; here, I’m mainly dealing with 3.5 MPa steam flanges – when the leakage site cannot be fixed on-site, it is sealed off by applying plugs. The clip is custom-made; it functions like a flange sleeve, with small holes provided for injecting special sealing glue inside. If leakage occurs after installation, more glue can be added under pressure through those holes.
The most important things are regular equipment maintenance, as well as avoiding deviations from the specified process parameters. It is necessary to control the sulfur content in the crude oil, along with ions such as iron ions and chloride ions, in order to protect the catalyst and extend its lifespan. For pipeline maintenance, it is necessary to conduct more inspections in order to control risks at an early stage, thereby buying time to handle accidents and enabling them to be dealt with in a planned and systematic manner.