International Sugar Journal

The use of fractal shallow bed technology for color and ash removal from refinery syrups [Full subscriber]

Abstract Most equipment used for ion exchange resin-based decolorization and deashing in refined sugar production is based on conventional designs that are characterized by the large size of main and peripheral equipment, low efficiency and relatively high operating cost. The decolorization process is diffusion controlled; therefore, a certain bed depth is required to achieve the desired level of color removal. It has been shown that 0.7-1 m bed depths are generally sufficient, while taller beds lead to increased pressure drop and larger resin inventories. Use of relatively shallow beds in conjunction with efficient fractal fluid distribution has been proven to…

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