Replace the zinc oxide desulfurization catalyst for hydrogen production!
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Two zinc oxide desulfurization reactors are used in series; the first one has been in use for a year and has now become saturated. Recently, we removed one of the reactors in order to replace its catalyst Is only one reactor required to reduce production during this period? Is it necessary to stop production for catalyst drying after changing the catalyst? Please introduce those you have experienced!
If the results after desulfurization are satisfactory, there is no need to reduce the amount; it is also possible to use a lower-sulfur feed material such as natural gas, and drying can be carried out online without the need for shutting down the process
It can be replaced online, with proper isolation in place. After the replacement is complete, slowly open the outlet; the pressure will then rise gradually to the operating pressure. Next, open the inlet, and air will be introduced slowly, thereby raising the temperature. The temperature just needs to rise to normal levels.
It’s okay; there’s no need to reduce the dosage. Closely monitor the sulfur content after desulfurization. There’s no need to stop production specifically for drying after adding the agent – just add it gradually and increase the temperature slowly.
There’s no need to reduce it, but attention should be paid to the sulfur content at the inlet of the converter; if it exceeds the specified limit, then reduction is necessary
If the hydrogen sulfide level in the refined gas is within acceptable limits, there is no need to reduce the volume. Online drying is sufficient
There’s no need to reduce production; an online replacement is sufficient, and we do this often
Whether to reduce the amount or not should be determined based on test data. When manufacturing a single desulfurization reactor, it is necessary to control the quality parameters of the raw materials to prevent large fluctuations. After the calcium oxide and zinc oxide have been replaced, they are incorporated into the system for use later. It is not a problem to refer to the drying curve during operation; pay attention to the impact on conversion.
Specializing in the recycling of waste catalysts, including various non-ferrous metal wastes such as copper, zinc, nickel, molybdenum, platinum, and palladium. We possess a license for handling hazardous waste and have all the necessary environmental compliance certifications. Manufacturers and individuals who are in need can contact Manager Cha at phone number 13203847799