A pilot-scale TiO2 photocatalytic system for removing gas-phase elemental mercury at Hg-emitting facilities

Jae Han Cho; Yujin Eom; Seok Ho Jeon; Tai Gyu Lee

doi:10.1016/j.jiec.2012.07.016

A pilot-scale TiO₂ photocatalytic system for removing gas-phase elemental mercury at Hg-emitting facilities

Jae Han Cho, Yujin Eom, Seok Ho Jeon, Tai Gyu Lee

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

A pilot-scale TiO₂ photocatalytic system using common household fluorescent lamps was tested at a real combustion facility for its ability to control Hg⁰ emissions. An Hg⁰ removal efficiency of greater than 90% was achieved under optimum conditions. The photocatalytic reaction units connected in series were more efficient than those connected in parallel. Acid components of the flue gas, such as NO and H₂O, exhibited significant negative effects on the Hg⁰ removal efficiency. There was no difference in Hg⁰ removal efficiency between the systems employing mono-wavelength and tri-wavelength fluorescent lamps, and the efficiency was enhanced by increasing the amount of irradiation.

Original language	English
Pages (from-to)	144-149
Number of pages	6
Journal	Journal of Industrial and Engineering Chemistry
Volume	19
Issue number	1
DOIs	https://doi.org/10.1016/j.jiec.2012.07.016
Publication status	Published - 2013 Jan 25

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MEST) (No. 2009-0079977 ).

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)

Access to Document

10.1016/j.jiec.2012.07.016

Cite this

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title = "A pilot-scale TiO2 photocatalytic system for removing gas-phase elemental mercury at Hg-emitting facilities",

abstract = "A pilot-scale TiO2 photocatalytic system using common household fluorescent lamps was tested at a real combustion facility for its ability to control Hg0 emissions. An Hg0 removal efficiency of greater than 90% was achieved under optimum conditions. The photocatalytic reaction units connected in series were more efficient than those connected in parallel. Acid components of the flue gas, such as NO and H2O, exhibited significant negative effects on the Hg0 removal efficiency. There was no difference in Hg0 removal efficiency between the systems employing mono-wavelength and tri-wavelength fluorescent lamps, and the efficiency was enhanced by increasing the amount of irradiation.",

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AU - Cho, Jae Han

AU - Eom, Yujin

AU - Jeon, Seok Ho

AU - Lee, Tai Gyu

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