Transcript 40 MTPD Crystalline Ammonium Nitrate Plant

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17A Marlen Drive w Hamilton, NJ 08691 w USA
Tel: (609) 586-8004 w Fax: (609) 586-0002
www.ippe.com
Introduction

Start Up:
1977

Shut Down:
2002
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Capacity:
225 Metric Tons Per Day
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Technology:
Chemico
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Documentation:
Available
Overview
The process begins with compressed air at 135 psig and at 540° F. The air is mixed
with superheated ammonia and flows through the Burner where the ammonia is
catalytically (platinum catalyst) oxidized to produce Nitrogen Oxides. The process
gas leaves the ammonia burner at about 1650° F and passes in succession through
the expander turbine re-heater, the waste heat boiler, platinum filter, tail gas heater,
boiler feed water pre-heater, process gas cooler and ultimately the
cooler condenser prior to enter the absorption column. In the
absorption column the Nitrogen Oxides react with process condensate
produce Nitric Acid. The tail gas which is mainly
Nitrogen exits the top of the absorber, passes through a
series of exchangers before reaching the expander gas
turbine for power recovery prior to be realized to
the atmosphere.
The gas expander/ recovery
turbine at normal operation provides about 80% of
the required power to run the air compressor.
Note: A second absorption column was added at
down stream of original absorption column to
mitigate the NOx emission to the atmosphere.
After this improvement the NOx content of the
tail gas dropped to 200 ppm plus/minus.
Detailed Report
Utility & Unit Consumption
Ammonia  0.28 ton/ton product
Electricity (480V / 3 Ph / 60 Hz)  88 KW/ton product
Boiler feed water at 280° F  22,500 lbs/hr / 44.5 GPM
Cooling water at 80° F  5880 GPM circulation
Steam export (250 psig saturated)  500 lbs/hr
Steam consumed  1900 lbs/ton acid produced
Catalyst / net burnt  less than 0.008 Troy oz
Detailed Report
Raw Materials
Ammonia  5822 lbs/hr
Air  23.200 SCFM (DAY)
Boiler Feed Water  10,270 lbs/hr / 21 GPM
Products Produced
225 MTPD (100% Base) of 56% concentration
Major Components
Air Compressor
4 stage Ingersoll Rand compressor with steam turbine drive
Model and Size: CVM MTA-4EX-IC
Gas Handles  Air
Intake Volume  26,700 ACFM
Intake Pressure  14.5 psia
Intake Temperature  90° F
Relative Humidity  100%
Discharge Pressure  135 psia
Discharge Temperature  450° F
Operating Speed  10,550 RPM
Major Components
Expander Turbine
Ingersoll-Rand, multistage, reaction type, single flow
Gas Handled  Basically Nitrogen
Intake Flow  84,000 lbs/hr
Inlet pressure  105 psia
Inlet Temperature  1100° F
Exhaust Pressure  10.9 psia
Exhaust Temperature  562° F
Operating RPM  10,920
Major Components
Steam Turbine
Terry turbine, total condensation
Steam  250 psig saturated
Steam Flow  17,550 lbs
Condensate Produced  10,270 lbs/hr
Operating RPM  3,034
Contact Information
MICHAEL JOACHIM
VP GLOBAL PLANT SALES
Tele: 609-838-5930 (direct)
Mobile: 609-516-9107
[email protected]