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Urea Plant

Brief Overview

Capacity:

270 TPD
 

Technology:

THYSSEN AG (Germany)
 

Built:

1984
 

Shut Down:

1990
 

Raw Materials:

Liquid ammonia NH3 & carbon dioxide COČ
 

Products Produced:

46% N Contents

Utilities Consumption:

10 MW
 

Documentation:

Available
 

Major Equipment:

- One 15 MVA transformer (FERRATI PACKARD) who reduces the supply voltage from 20 KV to 6.000 volts
- Two 2,5 MVA transformer, from 6 KV to 380 volts
- One emergency 400 KVA power diesel generator LEROY SOMMER

 

Process Description

Total thermic recycling
The urea is produced by the reaction of ammonia with carbon dioxide under a pressure of 232 bars. The intermediate ammonium carbonate is formed after an exothermic reaction at 138°C. The compression of carbon dioxide is obtained by four stages. INGERSOLL-RAND compressor powered by 1MW synchronous motor with 6.000 volts supply voltage

The Urea slurry is pumped into a rotating plates granulator. Granules are polished and cooled by air. The granulated urea is screened, then coated and transported to the warehouse.