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We have been using R-85.6 reformer catalyst. Recently we received a suggestion to use new catalyst R-88. What is the difference in efficiency and resistance to the sulphur content of heavy naphtha? We don't use a naphtha HD unit.
21/04/2020 A: Lindsay McRae, Pall Corporation, Lindsay_McRae@pall.com
Your should discuss that with your catalyst supplier.

My understanding is that most if not all reformer catalysts from major catalyst vendors are generally containing platinum / rhenium and hence quite sensitive to Sulphur hence HN should routinely be hydrotreated to avoid loss of catalyst activity, catalyst poisoning and short catalyst life. Your HN must be extremely low in S to even consider not hydrotreating it first. I guess that saves you the capital cost of NHT at the expense of higher opex costs i.e. lower yield and shorter catalyst life.