May I ask why there is Cl in the new hydrogen?
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This post was last edited by sdwfsgyykai on 2020-6-28 08:28. In hydrocracking, Cl can cause intergranular crystallization reactions in austenitic stainless steel, thereby damaging it; therefore, it is necessary to control the amount of Cl in the fresh hydrogen. The fresh hydrogen coming from the reforming unit contains Cl, as that unit adds Cl to it in order to use it in reactions, just like adding catalysts. I’m curious as to why
The process card specifies a requirement for cl, which must be less than or equal to 0.5 (in milliliters per cubic meter)
I want to learn about the *ethylene glycol and ethylene process; could some expert please explain it to me? Thank you all
I’m not curious about it. To maintain catalyst activity, chlorine must be injected, resulting in trace amounts of chlorine in the hydrogen.
The active center of the reforming catalyst is primarily composed of chloride ions. During normal reforming process operations, since a certain amount of chlorine is lost, continuous chlorination is carried out. Part of the lost chlorine is released through flue gas during catalyst regeneration, another part is carried away by the hydrogen produced, and only a very small amount is taken away by the oil generated as a result of reforming. If the original poster understands the reaction mechanism of the reformation process, they will get it. This process is also known as the water-chlorine balance in the reforming catalytic process.
In normal reforming, there is a dechlorination tank that absorbs chlorine to ensure that the hydrogen product meets quality standards.
Bro Fa \ud83d\ude01