Description: Das Projekt "Improvement of energy-tie up by using the high temperature cooling crystallization" wird vom Umweltbundesamt gefördert und von Südzucker AG durchgeführt. Objective: Demonstrates high temp cooling crystallization of sugar beet juices. Energy saving is 4.1 litres of oil per tonne of beet processed. For annual output of 900000 t saving juices in the cooling crystallization stage. Expected payback time is about 4 years. General Information: Sugar crystallization takes place through the thickening of aqueous solutions. It is not possible to put the water evaporated in vacuum to meaningful further use for heating purposes. With the state of engineering so far attained in the European Community average juice concentrations of 68 per cent (in exceptional cases up to 74 per cent) are achieved in the multiple evaporation plant preceding the evaporation crystallization stage. Until now it has not been possible technologically to control higher concentrations. The resultant heating vapours have been utilized in the process. By heating juices under vacuum to 110 deg, the process now under discussion achieves concentrations of 85 per cent; it also utilizes the resultant heating vapours and reduces the quantities of water needing to be evaporated in the follow-up evaporation crystallization stage by around 50 per cent compared with the state of the art. The primary energy input shrinks accordingly. The innovative feature of the process lies in the energy tie-up of evaporation plant, new type cooling crystallization and evaporation crystallization, which enables extremely high juice concentrations to be used in the cooling crystallization stage. The latter starts at a temperature of 100 deg and in the course of crystal formation leads to a final temperature of 65 degree of Celsius. Oncentrated juice is couled rapidly to the seed point and then more slowly as the crystals grow. This temperature conforms with the normal operating conditions of the still conventional follow-up evaporation crystallization phase. The process under discussion thus amounts to a new element in existing plant and can be employed in every sugar factory.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Zuckerrübe ? Brennstoff ? Rübe ? Zucker ? Zuckerindustrie ? Weiterverwendung ? Brüden ? Kühlverfahren ? Saatgut ? Temperaturverteilung ? Europäische Gemeinschaften ? Altanlage ? Amortisation ? Betriebsdaten ? Heizöl ? Primärenergie ? Verdunstung ? Verfahrensoptimierung ? Energietransport ? Energieeinsparung ? Energiespeicher ? Energieverbrauch ? Innovation ? Kontrollmaßnahme ? Kristallisation ? Kühlung ? Neuanlage ? Stand der Technik ? Verfahrenstechnik ? Wassereinsparung ? Wasser ? Wasserstand ? Investition ? Heizung ? Anlagenbetrieb ? Umweltfreundliche Technologie ? Lebensmitteltechnologie ? Mehrfachnutzung ? Eindampfung ? Konzentrationswirkung ? Brennstoffeinsparung ? Verweilzeit ? renewable sources of energy ? Konzentrationsmessung ?
Region: Baden-Württemberg
Bounding box: 9° .. 9° x 48.5° .. 48.5°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1989-03-01 - 1992-10-01
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