Optimization of betaine recovery in a coupled loop molasses desugarization separator

Abstract

Abstract:Betaine recovered from American Crystal Sugar's molasses desugarization (MDS) plant has increased in value over the past few years. Maintaining product quality while maximizing recovery of the betaine-rich fraction has a higher rate of return than in the past. Techniques for optimization of the recovery and quality of the betaine fraction involve the use of a Foss NIRSystems Series 5000 benchtop spectrometer located on site at the factory lab. Data from the NIR has proven useful in monitoring the quality of the betaine-rich fraction on a daily basis. In addition, the NIR has proven to be a useful tool in troubleshooting and fine tuning control valve cut points. Data from the NIR has proven to be a very useful adjunct to the RDS and apparent purity data used to determine operating parameters. With the rapid availability of betaine data, adjustments can be made to the MDS trains to account for changes in feedstock. Data from comprehensive sampling around valve cut points can be used to enhance recovery while maintaining product quality of the betaine-rich fraction. This paper reviews the application of NIR betaine data in optimizing the operation of a coupled-loop separator.Introduction:

The effect of different pretreatments on betaine separation

“…Betaine is not destroyed nor eliminated during processing of crystalline sugar from sugar beet and it accumulates in molasses almost without loss (Krulj et al, 2014;Bennett, 1942). Generally, level of betaine in sugar beet peaks during the autumn months whereas growth under drought yields betaine levels in sugar beet (Groom et al, 2009;Corol et al, 2012).…”