What does a protective bed catalyst mean?
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Which friend can tell me what it means to protect the bed catalyst?
You use this term less often; it is generally called a protective agent. Its main function is to reduce the impact of impurities in the process material on the main catalyst. For example, the CH-13 catalyst is a hydrogenation protection layer catalyst featuring an excellent pore structure, high pore volume, and a certain proportion of large pores; it is capable of removing carbonaceous substances and metal impurities from the hydrogenation feed, has a high iron tolerance, and can effectively protect the activity and stability of the main catalyst.