all about aonla unit

1. IFFCO AONLA

2. PRESENTATION ON IFFCO
(INDIAN FARMERS FERTILIZER CO-OPERATIVE LTD.)
SAURABH SINGH CHAUHAN
TRAINING DIRECTOR 11204730
MR. D.KALIA

3. -:INTRODUCTION:-
 The fertilizer in India consists of three major players:
 The Government owned Public Sector undertakings
 Cooperative Societies like IFFCO
 units from Private sector.
 The fertilizer industry has organized itself through Fertilizer Association India (FAI)
to coordinate with the Government of India to achieve the macro-economic
objectives related to agricultural sector and to provide other services.

4. CONTINUE….
 IFFCO, is the world's largest fertiliser cooperative federation based in
India which is registered as a Multistate Cooperative Society. On 3
November 1967 IFFCO was registered as a Multi-unit Co-operative
Society.
 Five units of IFFCO are:-
 Kalol
 Kandla
 Phulpur
 Aonla
 Paradeep

5.  Aonla unit of IFFCO is one of the five natural gas based fertilizer
plants to be setup in the country on HBJ( HAZIRA-BIZAPUR-
JAGDISHPUR) pipeline which runs through states.
 Two production units Urea-I and Urea-II and each of these two units
has two sub units.
 Storage of NEPTHA as a alternate fuel.

6. UREA MANUFACTURING PLANT
 STEAM AND POWER GENERATION PLANT
 OFFSITE PLANT
 AMMONIA PLANT
 UREA PLANT

7. STEAM GENERATION PLANT
 All the major rotating equipments of ammonia and urea plant are
driven by electric motors ,so steam and power generators are
required.
 Two gas turbine generators.
 Capacity of 18 MW each.
 Involves three main sections ; Compressor , Combustion system ,
Turbine.

8. OFFSITE PLANT
 To support the production plant
 Without it ,there is no existence of production plant.
 Offsite plants are LIKE :-
RAW WATER SYSTEM
WATER TREATEMENT PLANT
COOLING TOWERS
AMMONIA STORAGE PLANT

9. RAW WATER STORAGE
 CHARACTERSTICS OF STORAGE TANK:-
Total storage capacity= 32760 cubic meter
one raw water storage tank=33696 cubic meter
volume of storage tank= 78m * 108m *45m

10. DM PLANT
 Underground water contains little impurities and high concentration
of dissolved salts.
 To get rid of these impurities (chlorides, sulphates , carbonates,
bicarbonates) DM plant is used.
 The water that could be used in plant should have following
specifications:-
ph = 6.8 to 7.3
silica <0.02 ppm
total electrolytes =0.1 ppm
Hardness = nil

11. COOLING TOWERS
 Most important unit of any chemical plant
 Cold fluid is water and the plant to cool the water is called the
cooling tower.
 A type of heat exchanger
 In IFFCO ,
Heat absorbing fluid is AIR and heat releasing fluid is water.

12. EFFLUENT TREATMENT PLANT

13. INSTRUMENT AIR PLANT
 Atmospheric air can’t be used directly to open and close valves
 Air used in plants is moisture and impurities free and is known as
instrument air.

14. INERT GAS PLANT
 Inert gas (N2) is generated, which is used for purging and for Production of
Ammonia in Ammonia Plant.

15. AMMONIA STORAGE
 In case of any problem in the Ammonia Plant, Ammonia could be
supplied from these tanks.
 Ammonia is stored at a gage pressure of 400 mm water at a
temperature of -33 °C in liquid form. Gaseous Ammonia is
continuously returned back to Ammonia Plant.

16. Storage Tank

17. AMMONIA PLANT
 To get the Ammonia manufactured, the following steps should be
followed:
 Desulphurization
 High Pressure Catalytic Reforming
 Water Gas shift reaction
 Carbon Dioxide absorption and stripping
 Ammonia Synthesis
 Refrigeration

18. Continued…

19. REFRIGERATION
 The effluent from the ammonia converter is cooled successively with
incoming feed gas, cooling water, and refrigerated ammonia liquid.
 At IFFCO refrigeration circuit is three level chiller (chiller cools but
don’t change state while condenser changes state as well):
High Level Chiller
Medium Level Chiller
Low Level Chiller

20. Continued…

21. UREA PLANT
 Urea is manufactured by direct synthesis of gaseous CO2 and liquid
NH3. The process consists of following operations:
Urea Synthesis
High Pressure Recovery
Medium Pressure Recovery
Low pressure Recovery
Urea Concentration
Waste Water Treatment
Urea Prilling

22. Continued…

23. THANK YOU….
J