International Sugar Journal

Refinery vacuum pan energy efficiency optimisation [Full subscriber]

As part of Harwood Mill and Refinery’s energy efficiency opportunities (EEO) program process improvements have been implemented at the Refinery to optimise the consumption of energy and water in the refinery pans. Limited refined sugar grading capacity exists within the factory and this has required intense focus on accurate vacuum pan boiling to achieve tight control of refined sugar grain size and regularity. Previous pan control included a constant temperature slurry graining and ‘check’ process that used significant quantities of water to control the supersaturation of the pan contents and achieve the required grain specification. The improved ‘vacuum-checking’ process controls…

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