EARTH

[1901-09-05] Effect of roasting on the catalytic activity to elemental mercury of low-loading CuCl₂/γ-Al₂O₃

○Shu Yang¹, Liyuan Chai^1,2, Cao Liu¹, Kaisong Xiang¹, Hui Liu^1,2 (1. Central South University, 2. Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution)

司会（Chairman）：Naoki Hiroyoshi（Hokkaido University）

キーワード：Elemental Mercury, Catalyst, Cupric chloride, Roasting, Copper aluminate

Mercury pollution from flue gas has drawn attention worldwide. To achieve efficient catalytic oxidation of Hg, a low-loading catalyst CuCl₂/γ-Al₂O₃ was designed. This catalyst synthesized from impregnation and roasting process shows high activity up to 8% for selective catalytic oxidation. The roasting process during synthetic stage affects the CuCl₂ forms and the catalytic activity. Only a small amount of inactive copper aluminate is generated after roasting of CuCl₂/γ-Al₂O₃ in air and results in more catalytic active substance CuCl₂ in the surface of the carrier.