CARBONATE MODIFIED COMPOSITIONS FOR REDUCTION OF FLUE GAS RESISTIVITY

摘要

Herein is described a composition effective for reducing the particulate resistivity of hydrated lime and capturing acidic gases from flue gas. The composition can include a supported carbonate that comprises 5 wt.% to 50 wt.% of a carbonate and 50 wt.% to 95 wt.% of a support; where the carbonate is an alkali metal carbonate selected from the group consisting of a carbonate, a bicarbonate, and a mixture thereof. The composition can be prepared by admixing the carbonate and the support with sufficient water and then drying. The composition can be used alone or with hydrated lime for reducing the concentration of acid gases in flue gas.