Efficiency improvements. Efficiency gains in electricity generation from coalfired power stations will play a crucial part in reducing CO2 emissions at a global level. A one percentage point improvement in the efficiency of a conventional pulverised coal combustion plant results in .
Volumetric screwfeeders, specifically calibrated for lime, feed the required dry powder lime directly into the tanks. Water is fed to the first tank, called the mixing tank, through a liquid eductor. The material feed inlet of the eductor is piped directly to the mix tank. Optimal solution concentrations of 5%10% lime/water are attained.