Sweet Water Concentration Plant
Sweet Water Concentration is carried out after the Purification process. A pump moves the water from the purification chamber to the concentration chamber. The glycerin water is passed through a feed heater and further on to the 1st effect Evaporator. The temperature is increased to around 130 degrees Celsius in the 1st effect evaporator with steam at about 8 - 10 bar. The moisture is then removed and the sweet water is returned to the 1st effect evaporator for heating.
Thereon the sweet water is passed to the 2nd and 3rd evaporators sequentially where the temperatures are maintained at 80 and 50 degrees Celsius respectively. The condensate is collected in the condensate receiver and is reused as process water for the Splitting tower.