This plant is discontinued operation, performed 2 cycles per day, and is projected to get a good economy and excellent thermal operating conditions applied to small and medium scale production.
The reactor operates at a pressure of 12 bar (e) and temperature of about 195 ° C. When you get to a conversion of the order
85% is necessary to add fresh water and heating again, in a second splitting stage, for uploading the acidity up to 95%. To do the glycerol waters are sent from the bottom of the reactor, a regulated flow, by a manual control valve, the evaporator (F), where the glycerol waters of steam generated at the expense of sensible heat contained in the separate liquid. The vapors are condensed in the condenser surface S, after passing through the droplet separator (SG). The operating pressure is atmospheric flash evaporator so that cool water near 100 ° C whereupon the sensible heat contained in the purged water dissipates. Reached 95% of acidity in the reactor and discharged water in the manner described, the gross to the expansion chamber, mentioned fatty acids are sent, and from there to the decanter to separate the small amount of water they contain. From there, the B3 pump is sent to the distillation plant.
FATTY ACID DISTILLATION
Our fatty acid distillation process incorporate a deareation-drying first stage, a second of predestilation-deodorizing one, and a distillation group, formed with a falling film evaporator followed by a low level labyrinth still for residue stripping, operating at 1 or 2 Torr, a condenser-scrubber and an ejector of 4 stages. Several heat exchangers assures an effcient energy recovery.
Standard units has 1000, 1500, 2000 and 3000 kg/h capacity.
Glicerine evaporators may be of two kinds: Concentration systems, from sweet waters and from spend lyes.
At the first group, the sweet water, after being treated to remove organic impurities, are concentrated using double and triple effects, long vertical or forced circulation evaporators, with thermocompressor and heat recovers, in order to give high specific evaporation (kg of water evaporated/kg of leave steam).
The second group, for spend lies, is based on two or three effects system of short tubes, with twin both salt boxes, filter type, or forced circulation evaporators with a salt handling equipment.