研究了介质阻挡放电(DBD)与CuZSM-5结合方式,即DBD和CuZSM-5两段分置(两段法)或将CuZSM-5放入DBD区(一段法),对脱除氮氧化物的影响.结果表明,在NO/N2或NO/C2H4/N2无氧体系中,DBD与CuZSM-5结合产生的协同效应很小;在NO/O2/N2富氧体系中,DBD与CuZSM-5结合导致氮氧化物转化率下降;而在NO/C2H4/O2/N2富氧体系中,在250℃,空速12 000h-1,输入放电能量密度(Ein)155 J/L的条件下,单纯催化、单纯等离子体放电、一段法和两段法时氮氧化物转化率分别为39%,1.5%,79%和52%.两段法产生了中等程度的协同效应,主要是第一段等离子体放电产生新稳态物种(如NO2,CO和CO2等)起作用;而一段法产生的协同效应较大,主要是由于等离子体放电产生的新稳态物种和激发态短寿命物种(如N2*,NO*,CH和CN等)共同起作用.
参考文献
| [1] | Li J H;Goh W H;Yang X C;Yang R T .[J].Applied Catalysis B:Environmental,2009,90:360. |
| [2] | Shi Y;Su Q F;Chen J;Wei J W Yang J T Pan H .[J].Environmental Engineering Science,2009,26:1107. |
| [3] | Jogi, I;Bichevin, V;Laan, M;Haljaste, A;Kaambre, H .NO Conversion by Dielectric Barrier Discharge and TiO2 Catalyst: Effect of Oxygen[J].Plasma Chemistry and Plasma Processing,2009(3):205-215. |
| [4] | Van Durme J;Dewulf J;Leys C;Van Langenhove H .Combining non-thermal plasma with heterogeneous catalysis in waste gas treatment: A review[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2008(3/4):324-333. |
| [5] | Lee JO;Song YH;Cha MS;Kim SJ .Effects of hydrocarbons and water vapor on NOx using V2O5-WO3/TiO2 catalyst reduction in combination with nonthermal plasma[J].Industrial & Engineering Chemistry Research,2007(17):5570-5575. |
| [6] | Mok Y S;Ravi V;Kang H C;Rajanikanth B S .[J].IEEE Transactions on Plasma Sciences,2003,31:157. |
| [7] | Rappe K G;Hoard J W;Aardahl C L;Park P W Peden C H F Tran D N .[J].Catalysis Today,2004,89:143. |
| [8] | Tonkyn R G;Barlow S E;Hoard J W .[J].Applied Catalysis B:Environmental,2003,40:207. |
| [9] | Roh H S;Park Y K;Park S E .[J].Chemistry Letters,2000,29:578. |
| [10] | Jun H;Kim H;Sakaguchi Y;Hong Y .[J].Journal of Physics D:Applied Physics,2008,41:205213. |
| [11] | Sun Q;Zhu A M;Yang X F;Niu J H Xu Y Song Z M Liu J .[J].European Journal of Applied Physiology,2005,30:129. |
| [12] | Chang M B;Kushner M J;Rood M J .[J].Environmental Science and Technology,1992,26:777. |
| [13] | Vinogradov I P;Wiesemann K .[J].Plasma Sources Science and Technology,1997,6:307. |
| [14] | Shimizu K;Oda T .[J].Science and Technology of Advanced Materials,2001,2:577. |
| [15] | Hideo O.Photochemistry of Small Molecules[M].New York:wiley,1978:251. |
| [16] | Guerra V.;Loureiro J.;Sa PA. .Role played by the N-2(A (3)Sigma(+)(u)) metastable in stationary N-2 and N-2-O-2 discharges[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2001(12):1745-1755. |
| [17] | Hibert C;Gaurand I;Motret O;Pouvesle J M .[J].Journal of Applied Physics,1999,85:7070. |
| [18] | Eliasson B.;Kogelschatz U. .Nonequilibrium volume plasma chemical processing[J].IEEE Transactions on Plasma Science,1991(6):1063-1077. |
| [19] | Teraoka Y.;Ogawa H.;Furukawa H.;Kagawa S.;Tai C. .Characterization and NO decomposition activity of Cu-MFI zeolite in relation to redox behavior[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2000(1/2):167-176. |
| [20] | Sun Q;Zhu A M;Yang X F;Niu J H,Xu Y.[J].Chemical Communications,2003:1418. |
| [21] | Cho BK. .NITRIC OXIDE REDUCTION BY ETHYLENE OVER CU-ZSM-5 UNDER LEAN CONDITIONS - STUDY OF REACTION DYNAMICS BY TRANSIENT EXPERIMENTS[J].Journal of Catalysis,1995(2):184-195. |
| [22] | 孙琪,任亮,牛金海,宋志民.介质阻挡放电等离子体与吸附在CuZSM-5上的NO或NO/O2的相互作用[J].物理化学学报,2008(07):1214-1218. |
| [23] | 孙琪,杨佳,石雷,牛金海,宋志民.介质阻挡放电和CuZSM-5结合体系中等离子体对C2H4的作用[J].化学学报,2009(15):1779-1783. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%