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Brief Overview |
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The Brine Evaporator Process is designed to concentrate a 32,000 lb/hr brine stream at 24% brine to 48% strength. This brine evaporator system provides organic separation steps prior to evaporation of the brine. This system was previously used by P&G at their amines plant in the United States. |
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Alternative uses for the Brine Evaporation System process include evaporation of water to concentrate a variety of salt stream or food processing. The metallurgy in this system makes it applicable to many different chemicals and should meet FDA requirements for food processing. It has the added benefit of the organic separation steps. |
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The Honeywell 3000 process control system and program are available with this process, as is all necessary documentation (equipment files, P&IDs, PFDs, operating manuals, etc.). All pressure vessels have National Board numbers, and spare parts are available for most equipment. The plant has been properly cleaned of all chemicals. This site is very accessible by road and rail. Equipment can be barged from the local docks only a few miles away on a major river. |
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Capacity : 16,000 lbs/hr evaporation of water
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Built : 2000 - 2003
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Shut Down : 2005
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| Major Equipment |
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Brine Settler (Stock #216039):
Brine feed to the settler is first cooled in an exchanger to promote separation of any organics. The large volume of this tank provides residence time for additional separation of “non-soluble”. The non-soluble organics have a lower specific gravity and tend to float to the top of the tank. Periodically the organic layer in the settler is floated into another storage tank for rework or disposal. The flow of brine from the bottom of the settler is controlled by a level controller on the settler. The pressure settler is a 23,700 gallon, 304SS vertical storage tank measuring 12' diameter x 36'7" overall height with welded dish heads. It is rated for 60 psig at 200°F with a 1/2" thick shell.
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Stripping Column (Stock #216093 - listed separately as 600547):
Light organics can be removed using the stripping column. This particular application was removing di-methyl amine from a level of about 5% down to a level of less than 18 ppm. Brine feed to the stripper is preheated to approximately 235°F using an interchanger. The brine feed to the stripper enters at the top of the column as a liquid and flows down through the packing into the stripper pot.
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At the same time, steam is introduced at the bottom of the stripper, just above the liquid level in the stripper pot. The steam travels up the column and vaporizes any light organics out of the brine solution. The steam and light organics exit the top of the stripper and pass through an entrainment separator used to knock-out entrained liquid (primarily brine) while allowing the steam and light organic vapors to pass through the stripper overheads condenser. This exchanger condenses the steam and light organics, which can be reworked or disposed. A level is maintained in the brine stripper pot to insure that the evaporator feed pump suction is flooded. The brine from the stripper is then pumped to the first effect of the evaporator.
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The 297 cu. ft., 304SS stripper column is 30" diameter x 62' tall, and is rated for FV/180 psig at 400°F. The stripper condenser has 1,335 sq. ft. of surface area and 304SS tubes, heads, and shell. Both the stripper and the condenser were manufactured in 2000.
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