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Why doesn’t the saturated water in recycled hydrogen damage the catalyst, whereas water in the feed definitely damages it?
If the recycled hydrogen undergoes desulfurization with amine solution and contains saturated water, then the water will enter the reaction system. Upon calculation, these levels of water can sometimes reach 1000 ppm relative to the reaction feed. By selecting different cold high-temperature values, the water content in the cyclic hydrogen varies. As long as there is no free water, it’s fine; saturated water is not a problem.
The liquid water in the raw material enters the catalyst pores, and boiling causes the catalyst to break apart.
The water pores in the feed are too large, damaging the catalyst
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