Intrinsic data of N2O catalytic decomposition over a K-promoted Co-Mn-Al mixed oxide prepared by the thermal treatment of a layered double hydroxide was used for the design of a pilot reactor for the abatement of N2O emissions from the off-gases in HNO3 production. A pseudo-homogeneous one-dimensional model of an ideal plug flow reactor under an isothermal regime (450℃) was used for reactor design. A catalyst particle diameter of 3 mm is a compromise size because increasing the size of the catalyst particle leads to a decrease in the reaction rate because of an internal diffusion limitation, and particles with a smaller diameter cause a large pressure drop. A catalyst bed of 11.5 m3 was estimated for the target N2O conversion of 90% upon the treatment of 30000 m3/h of exhaust gas (0.1 mol% N2O, 0.005 mol% NO, 0.9 mol% H2O.5 mol% O2) at 450℃ and 130 kPa.
参考文献
| [1] | Perez-Ramirez J.;Kapteijn F.;Schoffel K.;Moulijn JA. .Formation and control of N2O in nitric acid production - Where do we stand today? [Review][J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2003(2):117-151. |
| [2] | Kapteijn F;Rodriguez-Mirasol J;Moulijn J A .[J].Applied Catalysis B:Environmental,1996,9:25. |
| [3] | Obalov(a) L;Jir(a)tov(a) K;Kovanda F;Pacultov(a) K Lacn(y) Z Mikuiov(a) Z .[J].Applied Catalysis B:Environmental,2005,60:289. |
| [4] | Kar(a)skov(a) K;Obalov(a) L;Jiratov(a) K;Kovanda F .[J].Chemical Engineering Journal,2010,160:480. |
| [5] | Obalov(a) L;Kar(a)skov(a) K;Jir(a)tov(a) K;Kovanda F .[J].Applied Catalysis B:Environmental,2009,90:132. |
| [6] | Kapteijn F;Moulijn J A;Ertl G;Kn(o)zinger H,Weitkamp J.Handbook of Heterogeneous Catalysis[M].Weinheim:Wiley,1996 |
| [7] | Froment G F;Bischoff K B.Chemical Reactor Analysis and Design[M].New York:wiley,1990 |
| [8] | Fogler H S.Elements of Chemical Reaction Engineering[M].New Jersey:Prentice-Hall PTR,1999 |
| [9] | Obalova, L;Fila, V .Kinetic analysis of N2O decomposition over calcined hydrotalcites[J].Applied Catalysis. B, Environmental,2007(26):353-359. |
| [10] | Krishna R;Sie S T .[J].Chemical Engineering Science,1995,49:4029. |
| [11] | Kraus M;Schneider P;Ber(a)nek L.Chemick(a) Kinetika pro In(z)en(y)ry[M].Praha:SNTL,1978 |
| [12] | Fuller E N;Shettle P D;Giddings J C .[J].Industrial and Engineering Chemistry,1966,58:19. |
| [13] | Galejov(a) K;Obalov(a) L;Jir(a)tov(a) K;Pacultov(a) K Kovanda F .[J].Chemical Papers,2009,63:172. |
| [14] | Perry R H;Green D W.Perry's Chemical Engineers' Handbook[M].New York:McGraw-Hill,1997 |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%