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| 1 | NOx Reduction and Desorption Studies Under Electric Discharge Plasma Using a Simulated Gas Mixture:A Case Study on the Effect of Corona Electrodes显示文摘在这研究,氮(NOx ) 的氧化物的减小和解吸附作用用一种电的分泌物血浆技术被进行。学习用模仿的煤气的混合物被执行由一种非热的血浆解吸附作用技术探索使用的吸附物的新生的可能性。也就是,电极输送的日冕的三种不同类型,螺旋状的电线,和直电线,被用于在 NOx 分析他们的有效性减小 / 解吸附作用。展出的管子类型日冕电极氮的氧化物(没有)50% 的变换,它是 1.5 在 175 J/L 的精力密度预定 straight-wire-type 电极的。helical-wire-type 日冕电极展出了 NOx 解吸附作用效率几乎 4 次管子类型电极,显示可能性那出产生日冕的种类戏在解吸附作用的一个关键角色。 | K.YOSHIDA B.S.RAJANIKANTH M.OKUBO | 2009 | Plasma Science and Technology2009，11，3： | 6 |
| 2 | Catalyst-Packed Non-Thermal Plasma Reactor for Removal of Nitrogen Oxides显示文摘A single-stage plasma-catalytic reactor in which catalytic materials were packedwas used to remove nitrogen oxides. The packing material was scoria being made of various metaloxides including A12O3, MgO, TiO2, etc. Scoria was able to act not only as dielectric pelletsbut also as a catalyst in the presence of reducing agent such as ethylene and ammonia. Withoutplasma discharge, scoria did not work well as a catalyst in the temperature range of 100 °Cto 200 °C, showing less than 10% of NOx removal efficiency. When plasma is produced inside thereactor, the NOx removal efficiency could be increased to 60% in this temperature range. | V.Ravi YoungSunMok B.S.Rajanikanth Ho-ChulKang | 2003 | Plasma Science and Technology2003，5，1： | 4 |
| 3 | Study of Pulsed Plasma in a Crossed Flow Dielectric Barrier Discharge Reactor for Improvement of NO_x Removal in Raw Diesel Engine Exhaust显示文摘Improved performance of plasma in raw engine exhaust treatment is reported.Anew type of reactor referred to as of cross-flow dielectric barrier discharge (DBD)was used,inwhich the gas flow is perpendicular to the corona electrode.In raw exhaust environment,thecross-flow (radial-flow)reactor exhibits a superior performance with regard to NOx removal whencompared to that with axial flow of gas.Experiments were conducted at different flow rates rangingfrom 2 L/min to 25 L/min.The plasma assisted barrier discharge reactor has shown encouragingresults in NO_x removal at high flow rates. | Sankarsan MOHAPATRO B.S.RAJANIKANTH | 2011 | Plasma Science and Technology2011，13，1： | 3 |
| 4 | Discharge Plasma Assisted Adsorbents for Exhaust Treatment: A Comparative Analysis on Enhancing NO_x Removal显示文摘An analysis has been made on the discharge plasma coupled with an adsorbentsystem for NO_x removal.The cascaded plasma-adsorbent system may be perceived as a betteralternative for the existing adsorbent-based abatement system in the industry.In this study theexhaust is sourced from a diesel generator set.It was observed that better NO removal in a plasmareactor can be made possible by achieving higher average fields and subsequent NO_2 removal canbe improved using an adsorbent system connected in cascade with the plasma system.The paperdescribes various findings pertaining to these comparative analyses. | B.S.RAJANIKANTH Dipanwita SINHA P.EMMANUEL | 2008 | Plasma Science and Technology2008，10，3： | 3 |
| 5 | DeNOx Study in Diesel Engine Exhaust Using Barrier Discharge Corona Assisted by V_2O_5/TiO_2 Catalyst显示文摘A plasma-assisted catalytic reactor was used to remove nitrogen oxides (NOx) from diesel engine exhaust operated under different load conditions. Initial studies were focused on plasma reactor (a dielectric barrier discharge reactor) treatment of diesel exhaust at various temperatures. The nitric oxide (NO) removal efficiency was lowered when high temperature exhaustwas treated using plasma reactor. Also, NO removal efficiency decreased when 45% load exhaust was treated. Studies were then made with plasma reactor combined with a catalytic reactor consisting of a selective catalytic reduction (SCR) catalyst, V2O5/TiO2. Ammonia was used as a reducing agent for SCR process in a ratio of 1:1 to NOx. The studies were focused on temperatures of the SCR catalytic reactor below 200℃. The plasma-assisted catalytic reactor was operated well to remove NOx under no-load and load conditions. For an energy input of 96 J/1, the NOx removal efficiencies obtained under no-load and load conditions were 90% and 72% respectively at an exhaust temperature of 100℃. | B.S.Rajanikanth V.Ravi | 2004 | Plasma Science and Technology2004，6，4： | 3 |
| 6 | A Cascaded Discharge plasma—Adsorbent Technique for Engine Exhaust Treatment显示文摘A cascaded system of electrical discharges (non-thermal plasma) and adsorptionprocess was investigated for the removal of oxides of Nitrogen (NOx) and total hydrocarbons(THC) from an actual diesel engine exhaust. The non-thermal plasma and adsorption processeswere separately studied first and then the cascaded process was studied. In this study, differenttypes of adsorbents were used. The NOx removal efficiency was higher with plasma-associatedadsorption (cascaded) process compared to the individual processes and the removal efficiencywas found almost invariant in time. When associated by plasma, among the adsorbents studied,activated charcoal and MS-13X were more effective for NOx and THC removal respectively. Theexperiments were conducted at no load and at 50 % load conditions. The plasma reactor was keptat room temperature throughout the experiment, while the temperature of the adsorbent reactorwas varied. A relative comparison of adsorbents was discussed at the end. | B.S.Rajanikanth A.D.Srinivasan B.AryaNandiny | 2003 | Plasma Science and Technology2003，5，3： | 3 |
| 7 | Studies on Nitrogen Oxides Removal Using Plasma Assisted Catalytic Reactor显示文摘An electric discharge plasma reactor combined with a catalytic reactor was studied for removing nitrogen oxides. To understand the combined process thoroughly, discharge plasma and catalytic process were separately studied first, and then the two processes were combined for the study. The plasma reactor was able to oxidize NO to NO2 well although the oxidation rate decreased with temperature. The plasma reactor alone did not reduce the NOx (NO+NO2)level effectively, but the increase in the ratio of NO2 to NO as a result of plasma discharge led to the enhancement of NOx removal efficiency even at lower temperatures over the catalyst surface (V2O5-WOa/TiO2). At a gas temperature of 100℃, the NOx removal efficiency obtained using the combined plasma catalytic process was 88% for an energy input of 36 eV/molecule or 30 J/1. | V.Ravi Young Sun Mok B.S.Rajanikanth Ho-Chul Kang | 2003 | Plasma Science and Technology2003，5，6： | 2 |
| 8 | Unfiltered Diesel Engine Exhaust Treatment by Discharge Plasma: Effect of Soot Oxidation显示文摘A cascaded system of electrical discharges (Non-thermal plasma), catalyst and adsorption process was investigated for the removal of oxides of nitrogen (NOx) and carbon monoxide (CO) from a Diesel engine raw exhaust. The three processes were separately studied first, and then the cascaded processes, namely plasma-catalyst and plasma-adsorbent, were investigated. In this paper main emphasis was laid on the effect of carbonaceous soot oxidation on the plasma treatment process. While the cascaded plasma-catalyst process exhibits a higher CO removal,the cascaded plasma-adsorbent process exhibits a higher NOx removal. The experiments were conducted under no-load. The plasma and adsorbent reactors were kept at room temperature throughout the experiment while the catalyst reactor was kept at 200℃ / 300℃. | B.S.Rajanikanth Subhankar Das A.D.Srinivasan | 2004 | Plasma Science and Technology2004，6，5： | 2 |
| 9 | Achieving Better NO_x Removal in Discharge Plasma Reactor by Field Enhancement显示文摘Application of plasma chemistry for gas cleaning is gaining prominence in recentyears,mainly from an energy efficiency point of view.In this paper we conducted a comparativestudy of NO/NO_x removal using two different types of dielectric barrier discharge electrodes,wire-cylinder reactor,pipe-cylinder reactor.Investigations were first carried out with synthetic gasesto obtain the baseline information on the NO/NO_x removal with respect to the two geometriesstudied.Further,experiments were carried out with raw diesel exhaust under loaded condition.A high NO_x removal efficiency of 90% was observed for the pipe-cylinder reactor as comparedto that of 53.4% for the wire-cylinder reactor.Furthermore,for the same energy consumed perNO molecule (about 73 eV/NO molecule),the removal efficiency increased from 67% for the wire-cylinder to about 98% for the pipe-cylinder which was quite appreciable. | B.S.RAJANIKANTH Dipanwita SINHA | 2008 | Plasma Science and Technology2008，10，2： | 1 |
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