WSA Plant EPC Project

This layout provides an overall view of the equipment arrangement and engineering interfaces within a WSA EPC project.

Depending on the project scope, the process line may include sulfur-containing gas pretreatment and combustion units, a waste heat boiler or gas heater, an SO₂ converter, intercoolers, a WSA condenser, sulfuric acid cooling and circulation systems, an acid mist control unit, and off-gas treatment equipment.

The layout shows the relative arrangement of major process equipment, piping, gas ducts, fans, pumps, heat exchangers, support structures, and maintenance platforms.

After pretreatment, the sulfur-containing process gas is directed to the converter, where sulfur dioxide (SO₂) is catalytically oxidized to sulfur trioxide (SO₃). The gas is then cooled in the WSA condenser, where sulfuric acid vapor condenses to form liquid sulfuric acid.

The actual equipment scope, plant capacity, overall dimensions, installation elevations, piping diameters, connection points, and layout are determined according to the process design basis and approved engineering documents for each EPC project.

The image is for illustrative purposes only. Final technical parameters shall be based on approved project drawings and working documents.