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2. Introduction  Start Up: 1977  Shut Down:2002  Capacity:225 Metric Tons Per Day  Technology: Chemico  Documentation: Available

3. 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 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. turbine for power recovery prior to be realized to the atmosphere. The gas expander/ recovery turbine at normal operation provides about 80% of

4. 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

5. 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

6. 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

7. 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

8. 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

12. Contact Information MICHAEL JOACHIM VP GLOBAL PLANT SALES Tele: 609-838-5930 (direct) Mobile: 609-516-9107 MichaelJ@ippe.com