Simultaneous Removal of NO_x and SO_x from Flue Gas of a Glass Melting Furnace using a Combined Ozone Injection and Semi-dry Chemical Process

ABSTRACT

In this study, we propose a plasma-chemical hybrid NO_x removal process using nonthermal plasma for the treatment of flue gases emitted from glass melting furnaces; the process is demonstrated through a laboratory-scale model experiment conducted using a semi-dry desulfurization apparatus. The performance of the system for simultaneous removal of SO₂ and NO_x is investigated. As a result, NO is effectively oxidized to NO₂ by injecting ozone into the spray region and the removal efficiencies of 90% and 50% were obtained for NO and NO_x, respectively. In addition, the SO₂ removal efficiency of 84% was achieved.

KEYWORDS:

• Ozone
• Glass Melting Furnace
• Nonthermal Plasma
• NO_x
• Semi-dry Process
• SO_x

Acknowledgments

We would like to thank Mr. K. Yoshida, who was a student of the Osaka Prefecture University at the time this work was done.

Funding

This work was partly supported by the Osaka Prefecture University Advanced Science and Joint Research Project Fund.