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Nitrogen Fertilisers

Filter › AN Neutraliser

NITROGEN FERTILISERS / AMMONIUM NITRATE – NEUTRALISER & EVAPORATOR

Ammonia and Nitric Acid are fed to the Neutraliser, which can be operating under pressure, under vacuum or at atmospheric pressure. There is a high exothermic reaction which produces NH4NO3 and steam.
Ammonium Nitrate solution is then fed to...
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Filter › AN Prilling

NITROGEN FERTILISERS / AMMONIUM NITRATE – PRILLING TOWER

Concentrated Ammonium Nitrate (NH4NO3) solution comes from the Evaporator and is sprayed downwards from the top of the Prilling Tower. The inlet air draft rising inside the Prilling Tower cools the falling, sprayed solution, which then forms into solid...
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Filter › Urea Evaporator

NITROGEN FERTILISERS / UREA –EVAPORATOR

Urea is formed in the liquid phase following different reactions, in one of 3 types of process : Once Through ; Partial Recycle ; Total Recycle.
Liquid NH3 is mixed with CO2 gas and any recycled Carbamate under high pressure (3200 psi ),...
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Filter › Urea Prilling Tower

NITROGEN FERTILISERS / UREA – PRILLING TOWER

Concentrated Urea solution comes from the Evaporator and is sprayed downwards from the top of the Prilling Tower. The inlet air draft rising inside the Prilling Tower cools the falling, sprayed solution, which then forms into solid ‘prills’. The prills then...
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Filter › NPK Spherodiser

NITROGEN FERTILISERS / NPK PLANT ACIDULATION & SPHERODISER EMISSIONS

NPK is a fertiliser where 27% of the product is N, P or K, made up of 3, 12 and 12%, respectively. Among the filters used in an NPK plant are those for Acidulation and Ammoniation duty, treating the...
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Filter › NPK Acidulation

NITROGEN FERTILISERS / NPK PLANT ACIDULATION & SPHERODISER EMISSIONS

NPK is a fertiliser where 27% of the product is N, P or K, made up of 3, 12 and 12%, respectively. Among the filters used in an NPK plant are those for Acidulation and Ammoniation duty, treating...
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Filter › HNO4 Inlet Air

NITRIC ACID / INLET AIR AND NH3 FILTERS

NH3 is oxidised with air on catalyst to form NO at high temperature ( 700 – 1000°C ), in a quick exothermic reaction. After cooling, NO is oxidised by excess air to give NO2. This oxidation continues into the absorbtion...
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Filter › Platinum Catalyst Dust

NITRIC ACID / PLATINUM CATALYST OR PALLADIUM DUST RECOVERY

NH3 is oxidised with air on catalyst to form NO at high temperature (700 – 1000 °C ), in a quick exothermic reaction. After cooling, NO is oxidised by excess air to give NO2. This oxidation continues into the...
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Gas Cleaning › Ammonium Nitrate Granulator Dryer

NITROGEN FERTILISERS / AMMONIUM NITRATE – GRANULATOR DRYER

Ammonium Nitrate (NH4NO3) is granulated then dried as a final process stage.
The drying process emits both Ammonium Nitrate dust and Ammonia at appx. 50 °C :
Typical Inlet dust load: 15,000 to 20,000 mg/Nm3 Ammonium Nitrate prills
Typical Inlet...
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Gas Cleaning › Urea Granulator

NITROGEN FERTILISERS / UREA GRANULATOR SCRUBBER

Urea solution is granulated then dried as a final process stage. There are various process providers, such as Toyo and Uhde, some of which involve fluidised bed technology.
The process emits both Urea dust and Ammonia:
Typical Inlet Urea dust load...
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