Simultaneous Removal of NO_xand SO_xfrom Flue Gas of a Glass Melting Furnace using a Combined Ozone Injection and Semi-dry Chemical Process

Performance evaluation of semi-dry flue gas desulfurization and denitration from flue gas of a glass melt using nonthermal plasma combined process

“…Therefore, simply injecting O3 into the instrument would cause O3 to break down faster than reacting with NO, which reduces the rate of NO oxidation. In order to suppress this decrease in NO oxidation, previous research has focused on the low temperature of the solution spray area in the semi-dry desulfurization equipment and performed experiments using an experimental apparatus that was designed for the 1/50,000 scale of actual exhaust gas volume produced in order to elucidate the influence of O3 supply in the local low-temperature area on NO oxidation and capacity for NOx removal (Yamamoto et al, 2016b;Kuroki et al, 2014;Yamamoto et al, 2016c).…”

Inhibiting oxidation and enhancing absorption characteristics of sodium sulfite for SO2 removal from the non-ferrous smelting flue gas

“…Moreover, they lead to heavy metal pollution and hazardous waste generation [16][17][18][19]. Sodium sulfite process (Wellman-Lord Process) is one of the most efficient technique for the desulfurization and recovery of SO 2 , due to its relatively high efficiency and low energy consumption [20]. However, sodium sulfite process is offset by the reduction in the desulfurization efficiency, which is the consequence of Na 2 SO 3 oxidation in the absorption solution.…”

Plasma–Chemical Hybrid NOx Removal in Flue Gas from Semiconductor Manufacturing Industries Using a Blade-Dielectric Barrier-Type Plasma Reactor

“…The problem for SCR is that the water spray brings the target exhaust gas down to a normal temperature, at which the catalyst cannot be activated. Furthermore, the HF can sometimes poison the catalyst for the SCR [7,8], which poses a problem for the treatment of the NO x generated during processing of the PFCs.Plasma-chemical methods that use nonthermal plasma have been proposed as a method of removing the NO x at low temperatures [9][10][11][12][13][14]. The plasma-chemical method oxidizes NO to NO 2 by using nonthermal plasma to promote oxidation, and then it applies a scrubber to reduce the NO 2 to N 2 .…”

“…The plasma-chemical method oxidizes NO to NO 2 by using nonthermal plasma to promote oxidation, and then it applies a scrubber to reduce the NO 2 to N 2 . Our research group has achieved highly efficient removal of NO x through treatment by a combined process of indirect oxidation by nonthermal plasma together with a sodium sulfite (Na 2 SO 3 ) scrubber [9][10][11][12]. Kim et al have also achieved NO x removal efficiency of more than 80% using nonthermal plasma-chemical methods to treat the NO x discharged from semiconductor plants [15].…”

“…Plasma-chemical methods that use nonthermal plasma have been proposed as a method of removing the NO x at low temperatures [9][10][11][12][13][14]. The plasma-chemical method oxidizes NO to NO 2 by using nonthermal plasma to promote oxidation, and then it applies a scrubber to reduce the NO 2 to N 2 .…”