CGS Wet Flue Gas Desulfurization (FGD) Systems

A typical lime/limestone Flue Gas Desulfurization (FGD) system consists of three major sub-systems: The reagent (lime or limestone slurry) preparation; The scrubber/SO2 absorber and mist eliminator, and slurry/solid waste disposal systems.

A limestone FGD system using CGS' unique MULTISCRUB-V absorber incorporating a conventional venturi for particulate scrubbing is depicted above. A quencher may be added to cool and pre-condition the inlet gases when high-temperature gases are to be handled.

Combining the design features of a spray tower and a turbulent contact absorber, CGS' MULTISCRUB-V absorber system can achieve higher than 98% SO2 absorption efficiency at a total energy consumption for fan and pumps lower than that of a spray tower system.

For a lime FGD system, a lime slaker processing pebble lime is required in place of the limestone wet ball mill. To facilitate the disposal of the solid waste, or to produce a saleable product in the form of high quality gypsum, a forced oxidation system may be utilized to oxidize the main reaction product, calcium sulfite, to gypsum.

Let CGS' team of experts design and supply the most suitable system for you.