Flue Gas Desulfurization units, commonly called scrubbers, spray an atomized lime or limestone slurry through flue gas to neutralize sulfur dioxide. The resulting reaction forms calcium sulfate (gypsum), preventing acid rain precursors from leaving the stack. The Utility Boiler Market was valued at US$ 47.85 billion in 2025 and is expected to reach US$ 80.59 billion by 2034,...