考察了在C3H8氧化脱氢的NiZrO催化剂和C3H6选择氧化的Mo基催化剂组成的组合催化剂上C3H8选择氧化制取丙烯酸的反应性能.结果表明,两个催化剂比例适当时,反应的丙烯酸收率可达最大.优化温度、烷氧比、空速以及N2含量等反应条件的结果发现,反应体系中O2的匮乏会严重影响反应性能.在有氧分布器的反应装置中对所选组合催化剂在优化的反应条件下进行了30h稳定性测试,结果表明,在340℃,反应性能基本稳定,C3H8转化率和丙烯酸选择性可分别维持在～20%和～74%.
参考文献
| [1] | Zhang X;Wan H L;Weng W Z;Yi X D .[J].Journal of Molecular Catalysis A:Chemical,2003,200:291. |
| [2] | 李秀凯,赵静,季伟捷,张志炳.丙烷选择氧化制丙烯酸现状与展望[J].天然气化工,2003(05):40-45. |
| [3] | Zhu Y H;Lu W M;Li H;Wan H L .[J].Journal of Catalysis,2007,246:382. |
| [4] | Ushikubo T;Oshima K;Kayou A;Vaarkamp M Hatano M .[J].Journal of Catalysis,1997,169:394. |
| [5] | Deniau B;Millet JMM;Loridant S;Christin N;Dubois JL .Effect of several cationic substitutions in the M1 active phase of the MoVTeNbO catalysts used for the oxidation of propane to acrylic acid[J].Journal of Catalysis,2008(1):30-36. |
| [6] | Chen L Q;Liang J;Lin H;Weng W Z Wan H L Védrine J C .[J].Applied Catalysis A:General,2005,293:49. |
| [7] | Landi G;Lisi L;Volta JC .Oxidation of propane to acrylic acid over vanadyl pyrophosphate: modifications of the structural and acid properties during the precursor activation and their relationship with catalytic performances[J].Journal of molecular catalysis, A. Chemical,2004(1/2):175-181. |
| [8] | Dimitratos N;Védrine J C .[J].Journal of Molecular Catalysis A:Chemical,2006,255:184. |
| [9] | Védrine J C;Novakova E K;Derouane E G .[J].Catalysis Today,2003,81:247. |
| [10] | Zhu B C;Li H B;Yang W Sh;Lin L W .[J].Catalysis Today,2004,93-95:229. |
| [11] | 王红心,邓忠华,楚文玲,杨维慎.丙烷氧化制丙烯酸催化剂MoVTeNbO的两段焙烧[J].催化学报,2009(06):490-496. |
| [12] | Baca M;Aouine M;Dubois JL;Millet JMM .Synergetic effect between phases in MoVTe(Sb)NbO catalysts used for the oxidation of propane into acrylic acid[J].Journal of Catalysis,2005(1):234-241. |
| [13] | Kim Y C;Ueda W;Moro-ok Y .[J].Catalysis Today,1992,13:673. |
| [14] | Centi G;Tosarelli T;Trifiro F .[J].Journal of Catalysis,1993,142:70. |
| [15] | Sinev MY.;Tulenin YP.;Margolis LY.;Vislovskii VP. Valenzuela RX.;Corberan VC.;Udalova OV. .Propane partial oxidation to acrolein over combined catalysts[J].Catalysis Letters,2000(3/4):203-206. |
| [16] | Fang W;Ge Q J;Yu J F;Xu H Y .[J].Industrial and Engineering Chemistry Research,2011,50:1962. |
| [17] | Bettahar M M;Costentin G;Savary L;Lavalley J C .[J].Applied Catalysis A:General,1996,145:1. |
| [18] | Kaddouri A;Mazzocchia C;Tempesti E .[J].Applied Catalysis A:General,1999,180:271. |
| [19] | Wu Y;He YM;Chen T;Weng WZ;Wan HL .Low temperature catalytic performance of nanosized Ti-Ni-O for oxidative dehydrogenation of propane to propene[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2006(14):5220-5226. |
| [20] | Liu Y M;Wang L C;Chen M;Xu J Cao Y He H Y Fan K N .[J].Catalysis Letters,2009,130:350. |
| [21] | 葛庆杰;方雯;俞佳枫;徐恒泳 .[P].ZL201010215958.4,2010. |
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%