Issues related to the design of hydrogen peroxide (hydrogen peroxide solution) storage tanks
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Dear sea friends, I have been looking up information on hydrogen peroxide these past couple of days, and I found that there are very few references regarding the design of storage tanks for this substance. Therefore, I would like to ask you a few questions: 1. How is the diameter of the exhaust port in a hydrogen peroxide storage tank determined? 2. Is a breathing valve used for exhaust from the storage tank? If so, how is the amount of gas released determined, and what are the calculations related to the decomposition of hydrogen peroxide? 3. Is external insulation required for the storage tank to prevent heat from entering? I saw on the internet that Liangliang glue is used; is this applied to the protective layer? 4. Can filling the storage tank with water prevent excessive decomposition of hydrogen peroxide, and what are the requirements regarding water quality? 5. If a venting manhole is installed on the storage tank, are there any special requirements? Thank you all very much!
The hydrogen peroxide storage tank should be a pressure-free tank; its vapor is neither toxic nor flammable, so a breathing valve is not required. The vent diameter is related to the volume; refer to SH/t3007-2014 for details. There is no need to consider decomposition for the vent, and efforts should be made to prevent decomposition from occurring. So, depending on the ambient temperature, it may not be necessary to apply a coating, but it doesn’t hurt to do so. Adding more water can effectively reduce decomposition; on the other hand, if the water quality is poor, it accelerates decomposition
Do you work in design or with installations?
If a breathing valve is not installed, could impurities in the air enter and cause decomposition?
There’s a design project, so I need to get familiar with it first
There are very few impurities in the air; they can be ignored and need not be taken into consideration
Thank you. Is there any relevant material available? If so, could you send it to me?:)
What are the process requirements? If there is a limit on the amount of impurities allowed, then a vent valve needs to be designed. Regarding the decomposition of hydrogen peroxide, reducing its concentration can slow down this process to some extent, but decomposition still occurs
For now I’m just getting an overview; there are no specific process requirements – it’s 50% hydrogen peroxide. Standards do specify various parameters, but setting the vent valve based on the amount of impurities seems a bit vague. Where can I find more information on this?
1. Reply: It is related to the volume of the hydrogen peroxide storage tank; meanwhile, the medium concentration should also be taken into account, as this affects the design of the exhaust port. 2. Reply: The hydrogen peroxide storage tank is designed as a atmospheric pressure dome tank; generally, a vent pipe is installed on the tank top for direct venting. 3. Response: It is recommended to apply cooling gel to provide insulation in summer; at the same time, factors such as the concentration of the medium and the ambient temperature should be taken into account. Water spraying from the top of the tank can also be used. 4. Response: In case of an emergency, desalinated water (sometimes referred to as deionized water) should be introduced into the tank to dilute the substance and slow down its decomposition rate. The desalinated water used in one factory has a hardness of ~0 μmol/L ； 2) Silicon dioxide < 0.02 mg/L ； 3) Conductivity < 0.1 μs/cm (25°C), and the CL ion content also needs to be measured. 5. Response: It is recommended to install a relief manhole; some companies also consider using an overflow collection pipe to direct the flow to a safe area.
For example, if the materials involved in the process are mixtures, then these can be set arbitrarily; but in the case of high-purity products, strict control is required