Techno-economic Analysis of Fertilizer Granulation Processes: Wet Disc/Drum Granulation vs. Dry Roller Extrusion
In organic fertilizer production, wet granulation and dry granulation are two mainstream technologies. Wet granulation, represented by disc and drum granulators, requires water or steam to assist in pellet formation and necessitates a subsequent drying process. Dry granulation, centered on roller extrusion, relies on high pressure for direct molding, requiring no liquid addition. Which is better? The answer depends on the characteristics of the raw materials, product positioning, and production conditions.
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