Complete Nitric Acid Plant
Technology: Uhde
y.o.m. 1967
Capacity: 224.000 t/year
Product: 53% HNO3
Mono, medium pressure plant (4,5bar) with 3 burners and
an absorption system of 4 packed columns
Equiped with a steam driven Parson compressor train with
a Curtiswheel and a DeNOx installation to reduce NOx
emissions to 200ppm
Steam system operates at a pressure of 20bar and is integrated
with site steam production grid
Summary plant process
Air compression
Air is compressed to 3.8 bar. The compressed air is split into two parts, 80% (primary air) is used for ammonia burning, 20 % (secondary air) is cooled and applied for degassing of produced acid.
Ammonia/air mixing
Liquid ammonia is vaporized into the gas phase, preheated and mixed with primary air in a 10 – 10.5 % proportion mixture.
Combustion process
The mixture is burned on a platinum/rhodium bed at 880° C to nitric oxides. Reaction heat is converted into 20 bar steam to heat the end gas. The nitric oxide gases are cooled.
Absorption
The nitric oxide gases are converted in the absorption towers into 54% nitric acid. The nitric acid is pumped into an acid degassing installation.
Acid degassing and storage
The nitric acid is degassed by reverse current of secondary air. The final product is stored in tanks.
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For Sale By Private Treaty
By Order Of Our ClientComplete Nitric Acid Plant
Further information, visits and inspections can be arranged for serious interested customers
contact:
Tom Declerck
+32 (0) 492275440
tom
iass [dot] eu