Bioethanol kettle distillation processing

Ethanol stillage evaporation control in the process

Ethanol (C₂H.₅OH) stillage or residue distillation process to produce contains valuable by-product can be used as animal feed, such as nutrients, minerals and unfermented sugar.In the ethanol process, per L can generate ethanol stillage of about 13 L.

Sedimentation centrifuge to carry waste grain stillage in mechanical dehydration, generated contains dissolved and suspended solids stillage, namelyCentrifugal filtrate.Some thin stillage is recycled, and return to the stage of fermentation process.Using evaporator concentrate the concentration of the remaining 5% to 10% (mass percent) of thin stillage in order to produce dry lees (DDGS).At the same time, the settlement of wet type centrifugal opportunities generated waste grain bread or wet vinasse (WDG), can be used as cattle feed or further processed into dried grains in the dryer.

Falling film evaporator can be used for preconcentration dilute kettle distillation.In order to optimize the evaporation process, can use visa K - PATENTS^®Inward and outward monitoring in situ online refractometer in evaporator syrup concentration, in order to reduce energy consumption, reduce the cost.

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Bioethanol Stillage Processing

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