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1. Juice concentration and energy balance
The evaporation workshop concentrates the juice before evaporation (JAE). The juice must be brought to a concentration as close as possible to the value corresponding to sugar saturation during crystallization. In 2001, the average Brix of syrup leaving concentration was 68.5 g MS/100 g (between 59.7 and 73.5). The quantities of water to be evaporated are very high.
a medium-sized plant processing 10,000 tonnes of beet a day needs to evaporate 340 tonnes of water an hour to produce syrup.
Energy consumption in sugar factories could therefore be very high if the entire circuit had not been optimized over time. The multiple-effect evaporation workshop is at the heart of the sugar factory in terms of energy. It is therefore difficult to dissociate this workshop from steam production and...
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Juice concentration and energy balance
Sugar crystallization
Economic data
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Economic context
With beet containing between 16 and 19% sugar, and yields of around 10 to 11 tonnes of white sugar per hectare, metropolitan France produced 4.23 Mt (million tonnes) of white sugar in 2000-2001, with 35 factories whose average capacity in tonnes of beet per day is close to 11,769 t bett. / day. The number of sugar factories will continue to decline. Some industry...
Bibliography
In Engineering Techniques
Agri-food treaty :
Manufacturers
Main manufacturers
A list of the main manufacturers can be found in :
the July-August special issue of Industries alimentaires et agricoles ;
once a year in the International Sugar Journal ;
in the sugar directory [publisher AGP (antenne générale de publication)].
Organizations
Institut national de la recherche agronomique (INRA) http://www.inra.fr
Centre d'étude et de documentation de l'Industrie sucrière (CEDUS) http://www.lesucre.com
Syndicat national des fabricants de sucre (SNFS)
Fonds d'intervention...
Websites
Ministère de l'Agriculture, de l'Alimentation, de la Pêche et des Affaires rurales http://www.agriculture.gouv.fr
Textes de lois (France et Europe), bulletins officiels des ministères http://www.legifrance.gouv.fr
...
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