Development of SNCR by photochemical reaction at room temperature

2017 Fiscal Year Final Research Report

• Project/Area Number: 26289375
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Energy engineering
• Research Institution: Gifu University
• Principal Investigator: KAMBARA Shinji 岐阜大学, 大学院工学研究科, 教授 (80362177)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 真空紫外線 / 光反応 / 無触媒脱硝

Outline of Final Research Achievements

Simulated flue gas was fed into a photochemical reactor with an excimer lamp generated 172 nm wavelength, which located at the center of the reactor. The de-NOx behavior was examined without any catalyst and no reducing agent at the room temperature. The de-NOx ratio was changed greatly with initial NO concentrations and gas residence time (SV). Although the partial pressure of water and the oxygen concentration slightly influence the de-NOx ratio, the effects of CO2, CO, SO2, and gas temperatures on de-NOx ratio were not affected.
The mechanism of de-NOx by photochemical reaction was examined by elementary reaction simulation. It was found that NO in the flue gas was reduced to molecular nitrogen at the long gas residence time. Co-products in the de-NOx reaction were HNO3 and NO2.

Free Research Field

化学工学