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Data Reconciliation Applied to Loss Identification in the Sugar Industry

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Abstract

Pursuit of the identification and reduction of losses, and consequently of increased industrial efficiency, is a constant challenge in sugarcane industries. However, little attention is given to the undetermined losses, despite the high impact they can have on industrial efficiency. Therefore, this work aimed to quantify the contribution of the sugar-manufacturing sector to the total undetermined losses of a sugar and ethanol plant, presenting a method that could be applied to any equipment or sector of the industry in order to help identify sugar losses. The method was based on data reconciliation for the process flow rates and concentrations and was applied to the juice concentration sector. A mass balance was then applied to the subsequent sectors (crystallization, centrifugation, and drying) with the purpose of calculating the sugar production and comparing it with the real production. Considering the entire period studied, the calculated sugar production was 1.0% higher than the real production, and 37.3% of undetermined losses were found to occur between juice concentration and sugar bagging.

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Abbreviations

F :

Mass flow rate (kg/h)

Q :

Volumetric flow rate (m3/h)

s :

Sucrose mass concentration (%)

ρ :

Density (kg/m3)

1:

Clarified juice

2:

Clarified syrup

3:

Final molasses

4:

Sugar

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Acknowledgements

The authors obtained financial support from CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico).

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Authors

Contributions

BJCC and AB conceived the work. BJCC developed the research and wrote the manuscript, with support from Bernardo. Both BJCC and AB contributed to the interpretation of the results and to the final version of the manuscript. AB supervised the project.

Corresponding author

Correspondence to André Bernardo.

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Conflict of interest

Castro reports grants from Conselho Nacional de Desenvolvimento Científico e Tecnológico, during the conduct of the study. Dr. Bernardo reports grants from Conselho Nacional de Desenvolvimento Científico e Tecnológico, during the conduct of the study.

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de Castro, B.J.C., Bernardo, A. Data Reconciliation Applied to Loss Identification in the Sugar Industry. Sugar Tech 21, 486–495 (2019). https://doi.org/10.1007/s12355-018-0649-4

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