The process for conversion of ethanol to acetaldehyde is the transition of ethanol vapor on a fixed bed reactor with catalyst based on copper.
Ethanol from the top of the distillation column D-1350 is fed to reactor D-1150 A / B.The gas mixture leaving the reactor is condensed in the product E-1170 and hydrogen before being extracted from the process is washed with tap water at low temperature, in column D-1200, to condense and absorb the acetaldehyde in the gas stream.
The condensate is then sent to the distillation tower D-1300 where at the top, remove the acetaldehyde and pumped to the tower base D-1350 that recovers unreacted ethyl alcohol, which returns to step reaction.
At the base of D-1350 column liquid effluent is extracted.
In an intermediate plate in column D-1350 is extracted mixture containing ethanol, butanol and other products. This mixture is stored and monthly we recover the ethanol. Main reaction:
C2H6O C2H4O H2 Ethanol Acetaldehyde + Hydrogen
B-1120 A/B CENTRIFUGAL FAN 100 HPF-1390 CARBON STEEL HORIZONTAL TANK CAP. 11000.0 LTS.D-1150 A/B REACTOR OF ACETALDEHYDE CS DIAM. 2814X4500 MM.E-1160 A/B CARBON STEEL HEAT EXCHANGER SURFACE 95,37 M2F-1242 HYDRAULIC GUARD IN CS CAP. 1100.0 LTS.E-1170 HEAT EXCHANGER, 316 L SS, SURFACE 170,0 M2.E-1155 STAINLESS STEEL HEAT EXCHANGE SURFACE 5.1 M2
D-1200 STAINLESS STEE PACKED COLUMN CAP. 25000,0 LTS.D-1300 STAINLESS STEEL SIEVE TRAY COLUMN CAP. 24000.0 LTS.D-1350 STAINLESS STEEL SIEVE TRAY COLUMN CAP. 31000.0 LTS.
Alcohol, either and aliphatic and aromatic hydrocarbons
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