What is the role of alkaline solution in a hydrocracking unit?
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I have a question for everyone: in a hydrocracking unit, apart from being used in cleaning reactors and for catalyst regeneration, is there any other use for alkaline solutions?
Preventing p-toluenesulfonic acid corrosion of austenitic stainless steel: reactors, high exchange rates, high concentrations. Additionally, passivation against ferrous sulfide: low concentrations, butane removal towers
What are the steps for passivating ferrous sulfide?
Floor 2: It’s already been explained very clearly
The passivation step involves providing the equipment that needs to be passivated, depending on the specific conditions of the facility, such as desulfurization towers, containers equipped with foam breakers, and various type of packing towers. Then a specialized company will provide specific solutions based on the processes required for passivating the equipment. During the vulcanization process, the equipment is first cleaned with an alkali or a strong oxidizing solution (such as potassium permanganate); after the analysis shows satisfactory results, it is rinsed with water. Finally, any remaining water in the equipment is drained, and the vulcanization process is complete