
Technology
1. C & I / Girdler Process
2. Uhde Process

Inputs
Ammonia Gas

Capacity
4,55,400 MTPA
1. C & I / Girdler Process
2. Uhde Process
Ammonia Gas
4,55,400 MTPA
There are total 03 lines of Nitric Acid plant at PFL.
Third line is, Old Nitric Acid plant, the capacity is 180 MT/Day.
The liquid ammonia is vaporized and heated before it is mixed with filtered air. The ammonia air mixture is filtered and fed into the ammonia burner in which the ammonia is oxidized in the presence of a Catalyst, Platinum (Pt) 90% and Rhodium (Rh) 10% as layers of silk fine gauzes.
The burner product gas containing nitrous oxides is cooled through waste heat boiler and other heat exchangers. The cooled process gas is fed into the absorption towers, in which the nitrous oxides are absorbed in process water to produce Nitric Acid, having concentration in between 57 ~ 60 %.