Urea Plant-Process Description
The liquid Ammonia and Carbon dioxide produced in
Ammonia Plant are sent to Urea Plant to form first,
ammonium carbamate and then Urea. The concentration of
Neem Coated Urea is progressively increased by the
decomposition and separation of ammonium carbamate in
different stages. The melt urea of 99.7% concentration
is sprayed in Prilling Tower through revolving bucket.
The solid particles of prilled urea are packed in 45 kg
HDPE urea bags. For recovery of waste water the
following facilities have been provided.
Quality Norms for Urea: The
Fertilizer Control Order (FCO) 1985 (as amended on Jan'2018)
of the Government of India states that any fertilizer,
including urea, that does not meet the quality norms in the
FCO cannot be sold for use in agriculture. As per FCO,
besides specifications, urea shall have Nitrogen content of
minimum 46%. Minimum 80 percent of the particles shall be
retained between 1 mm and 2.8 mm IS sieve.
KFL’s Neem Coated Urea always meets the quality norms.
The process steps, involved in production of Urea are:
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CO2 & Ammonia Feed into Urea
Reactor |
|
High Pressure Recovery |
|
Medium Pressure Recovery |
|
Low Pressure Recovery |
|
Urea Purification |
|
Urea Prilling |
|
Waste Water Treatment |
|
Urea Plant -Process Flow Diagram
|
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Urea Plant-Process Flow Diagram |
BAGGING PLANT
Prilled
Urea is sent thorough conveyors to Bagging Section, for
packing in 45 kg HDPE bags.
KFL is in process to install Railway siding facility to
dispatch Urea direct from plant.
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