Simulation of the Production of Sulfuric Acid from a Sulfur-burning Single-absorption Contact Sulfuric Acid Plant

Nilay Kumar Sarker


The purpose of this work is to develop and implement an effective knowledge on simulation of process plant in HYSYS. A theoretical examination of the simulation of Sulfuric acid process plant has been demonstrated in our work. Relationship among changes on several parameters has also been studied. The burner outlet temperature shows linearly increasing relationship with the liquid sulfur temperature. Waste energy flow shows linearly decreasing relationship with the boiler outlet temperature. Flue gas temperature initially had no regular relationship with Absorber inlet temperature, but with temperature increased more than 600 Celsius it seems to decrease linearly. Flu gas pressure has no effect on Absorber inlet temperature. The mass flow of Sulfuric Acid for storage decreases linearly with the increasing temperature of moist air. The molar enthalpy of Sulfuric Acid for storage increases linearly up to 500 Celsius, and after this temperature the increase is associated linearly with higher slope.  In this design HYSYS has been successfully used to design every sub-process of the sulfuric acid plant in one integrated environment. Peng-Robinson was used for liquid and vapor phase respectively as fluid package and HYSYS properties were used for simulation.


Simulation, Sulfuric acid, Catalysis, Reaction, Sulfur

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