Viscosity Correlation of Concentrated Syrups from Light Vinegars

Abstract

It has been developed a non-linear model that allows correlating the viscosity of concentrated syrups in function of the temperature and the quantity of total solids. These syrups are obtained from thin stillage using a plate exchanger system triple effect in a plant for production of ethanol by corn dry milling. In this work was used own experimental values from samples taken during the actual process operating on an industrial scale, which were measured using a rotational viscometer. A population of forty data was used, and in each of them was determined as the average value between ten measurements for each temperature. Regression parameters a, b and c of the generalized model have been determined for the operational interest ranges of each effect. The same was applied to the simulation process and the design of heat transfer equipment, with satisfactory results.