Abstract

This work presents an energy analysis of an industrial plant of production of Di-ammonium Phosphate (DAP plant). It aims to evaluate the important amount of waste heat discharged into environment without re-use. The studied plant includes four units: Utilities unit, Sulfuric acid production unit, Phosphoric acid production unit and DAP production unit. The obtained results showed that the energy losses are around 5.87, 58.8, 32.72 and 35.04 MW for Utilities unit, Sulfuric acid production unit, Phosphoric acid production unit and DAP production unit, respectively. It was found that the wasted sea water represents the important part of DAP discharges.

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