Mercury removal by catalytic oxidation in coal combustion flue gas

• Kamata Hiroyuki

  IHI

• Naito Toshiyuki

  IHI

• Yukimura Akinori

  IHI

Bibliographic Information

Other Title

• No.18 石炭燃焼排ガス中の微量水銀の酸化除去(灰・微量元素(1))

Abstract

Mercury oxidation by the V_2O_5/TiO_2 based commercial SCR catalyst was investigated. In coal combustion flue gas, ash derived from coal has been gradually accumulated on the honeycomb surface. By an FE-SEM observation on the honeycomb surface with assistance of FIB(Focused Ion Beam)technique, very fine ash particles with several 10 to several 100 nm of diameter were confirmed to form a porous deposition layer on the honeycomb surface. Both NO conversion and Hg^0 oxidation rates are decreased in accordance with the thickness of the porous deposition layer on the catalyst surface. Diffusion limitation of reactants through the porous deposition layer is one of crucial factor which determines the catalyst life time.

Journal

• Proceedings of Conference on Coal Science

  Proceedings of Conference on Coal Science 47 (0), 36-37, 2010

  The Japan Institute of Energy

Details

• CRID: 1390001205770163584
• NII Article ID: 110008067345
• DOI: 10.20550/jiesekitanronbun.47.0_36
• ISSN: 24238309
• ISSN: 24238295
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed