TY - GEN
T1 - Development of sorbents for the removal of elemental mercury in the form of mercury sulfide from coal combustion flue gas
AU - Azhar Uddin, M.
AU - Yamaji, Yuki
AU - Wu, Shengji
AU - Sasaoka, Eiji
PY - 2007/12/1
Y1 - 2007/12/1
N2 - The purpose of this study is removal of elemental mercury in the form of HgS in the coal combustion flue gases with sorbents like activated carbon (AC) and iron sulfides. For coconut shell AC, Hg removal was enhanced by the presence of H2S in the absence or presence of low concentration of HCl, therefore it is thought that Hg was removed mainly in the form of HgS. At high concentration of HCl, Hg removal was enhanced greatly by forming Hg-Cl compounds (such as HgCl2 and/or Hg2Cl2). When FeS 2 was used as a sorbent, a high level of Hg removal (comparable to coconut shell AC) was observed even in the absence of H2S and in the presence of a high concentration of HCl. Re-structured FeS2 ores (by kneading) showed a very high level of Hg removal performance probably due to the exposure of large amount of sulfur (S) at the surface of the sorbents.
AB - The purpose of this study is removal of elemental mercury in the form of HgS in the coal combustion flue gases with sorbents like activated carbon (AC) and iron sulfides. For coconut shell AC, Hg removal was enhanced by the presence of H2S in the absence or presence of low concentration of HCl, therefore it is thought that Hg was removed mainly in the form of HgS. At high concentration of HCl, Hg removal was enhanced greatly by forming Hg-Cl compounds (such as HgCl2 and/or Hg2Cl2). When FeS 2 was used as a sorbent, a high level of Hg removal (comparable to coconut shell AC) was observed even in the absence of H2S and in the presence of a high concentration of HCl. Re-structured FeS2 ores (by kneading) showed a very high level of Hg removal performance probably due to the exposure of large amount of sulfur (S) at the surface of the sorbents.
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M3 - Conference contribution
AN - SCOPUS:84877660459
SN - 9781604238617
T3 - 24th Annual International Pittsburgh Coal Conference 2007, PCC 2007
SP - 416
EP - 427
BT - 24th Annual International Pittsburgh Coal Conference 2007, PCC 2007
T2 - 24th Annual International Pittsburgh Coal Conference 2007, PCC 2007
Y2 - 10 September 2007 through 14 September 2007
ER -