CHENNAI: India has enough reserves of limestone to enable thermal power plants to install flue gas desulphurization (FGD) systems by 2022 to meet the new emission norms for the sector, says a report released online by Centre for Science and Environment (CSE).
This refutes the contention of power plants, which have been trying to delay implementation of the norms by raising concerns about availability of limestone and use of its by-product, FGD gypsum.
A large number of coal-based thermal power plants have to install FGD systems to meet India’s new emission norms by 2022. Limestone is a key raw material in most FGD systems for controlling sulphur dioxide (SO2) emissions. Flue gas desulphurization – limestone availability and gypsum use, as the CSE report is titled, attempts to examine the issue of availability of limestone for FGD.
