Catalyst drying in the reforming unit
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Why, after the catalyst in the reforming unit has been loaded, is the temperature not raised immediately without drying first, so that the water in the system can be gradually removed as feed is introduced?
Is a reduced-state catalyst being used? :)
Should nitrogen be used for circulation to carry water before feeding, right?
After the catalyst is loaded into a newly installed unit, it is generally dried. In fact, not too much moisture gets adsorbed on the catalyst; drying is done mainly to remove the moisture adsorbed on the equipment in the reaction system. Due to the short time during which the equipment is open and the tight schedule, catalyst drying is usually not carried out when maintaining the unit.