Author(s)

Hongying Liu, Yahui Liu, Gang Li, Ruixin Zhang, Dong Wang

School of Chemical and Environmental Engineering ,China University of Mining and Thechology, Beijing , China.

Coal combustion is the main source of mercury pollution in the atmospheric environment. After the mercury enters the ecological environment, it will pose the serious threat to humanity's health, therefore in the coal-burning process the mercury element's needs to be controlled. This research discussed the removing the mercury from flue gas by an activated carbon which was prepared by the lignite of Baorixile, Mongolian, China and the adsorption performance of this activated carbon. FeCl3 and MnO2 were used to change the surface properties of the activated carbon which were used as an absorbent of the mercury. The result indicated: the adsorption of the mercury on activated charcoal is mainly the physisorption. The mercury adsorption capacity of the FeCl3 modification's activated carbon is the biggest. The adsorption of the mercury on the modification's activated carbon is the chemisorption and needs a certain chemical energy.

activated carbon; mercury; coal; combustion