Recycled Fiber Stock - Hydro-Thermal Corp. Fluid: 11% Recycled Fiber Stock Flow Rate: 140-225 GPM [38-61 m3/hr] Inlet Temperature: Approx. 105°F [41°C] Discharge Temperature: 125°F [52°C] Steam Supply Pressure: Varies; 92-110 PSIG [6.3-7.6 barg] A major paper products manufacturer needed to heat recycled fiber stock to optimal bleaching temperature. Sparging steam into their fiber line through a small number of injection points, this recycled mill struggled with uneven heating of its recycled fiber stock. Inconsistent heating resulted in inefficient bleaching. “Hot spots” contributed to fiber degradation and excessive scaling, compromising stock yield and quality and necessitating quarterly acid boilouts. Process engineers sought to more precisely add heat to the bleaching process,

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